TERADATA DBA or TERADATA DEVELOPER
Content
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected] TERADATA CERTIFIED MASTER IBM CERTIFIED SOLUTIONS EXPERT - DB2 ORACLE CERTIFIED PROFESSIONAL COMPTIA ______________________________________________________________________________ Education 9/90 to 5/92 Wayne State University Post Graduate classes in Artificial Intelligence, Database Management, and Software Engineering 6/85 to 5/87 University of Southern Mississippi M.S. in Computer Science and Statistics 9/72 to 5/76 University of Michigan B.S.E. in Aerospace Engineering B.S.E. in Engineering Science B.S. in Applied Math Technical Summary MVS (21 Years) COBOL II (12 Years) DB2 (15 Years) JCL (21 Years) Teradata (12 Years) ETL (15 Years) CICS (3 Years) DB2 Utilities (6 Years) QMF (17 Years) PL/I (5 Years) IDMS (2 Years) VSAM (6 Years) IMS (5 Years) Dialog Manager (2 Years) REXX (4 Years) DYL280 (2 Years) FORTRAN (1 Year) CLIST (2Years) MySQL (1 Year) Data Modeling (5 Year) UNIX(5 Year) Access (1 Year) Visual Basic(1 Year) C++(2 Years) DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected] Certifications IBM Certified Solutions Exp ert 03/02 01/02 01/02 01/02 08/05 01/02 09/04 DB2 UDB V7.1 Database Administration for OS/390 DB2 UDB V7.1 Family Application Development Business Intelligence DB2 UDB V7.1 Database Administration for UNIX, Linux, Windows and OS/2 DB2 UDB V8.1 Database Administration for UNIX, Linux, Windows and OS/2 IBM Certified Specialist - DB2 V6.1/V7.1 User CIW Associate
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07/04 Teradata Certified Master V2R5 02/02 Teradata Certified Master 02/02 Teradata Certified Application Developer 10/01 Teradata Certified Administrator 06/01 Teradata Certified Designer
04/01 Advanced Teradata Certified Professional 04/01 Teradata Certified SQL Specialist 03/01 Teradata Certified Implementation Specialist 03/01 Teradata Certified Professional 07/04 Oracle9i Performance Tuning 05/04 Oracle9i Fundamentals II 09/02 Oracle9i Fundamentals I 04/02 Oracle9i SQL 01/04 12/04 10/04 09/04 08/04 02/03 Comptia IT Project+ Comptia Security+ Comptia Server+ Comptia I-Net+ Comptia Network+ Comptia A+
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Adjunct Professor of Computer Science/Instructor 10 years - See pages 12 and 13 Advanced Technical Training NCR Web Base Classes (1 to 2 hours each) Investigating Big Table Small Table (STAR) Joins Intro to Disaster Recovery Teradata Query Optimization Teradata Self Management Performance Turning and Analysis Overview MPP Multi-Node Systems A Few Seconds in the Life of an SQL Request Teradata Warehouse Builder Explaining the Explain TPump Tips and Techniques Roles and Responsibilities of a Teradata DBA Update on Teradata V2R4 Stored Procedures Continuous Load with TPump SQL Tips & Techniques Teradata Disk Arrays and UNIX Teradata Access Module Processor Teradata Parsing Engine Introduction to Data Mining for Teradata Users Understanding Join Indexes Considerations, Choices, Consequences and Criteria for Teradata Success Advanced Indexing for High Performance in a Teradata Data Warehouse Anticipating & Justifying Growth - Capacity Planning Oracle to Teradata DB2 to Teradata NCR 02/02 05/01 10/98 Instructor Lead Classes Teradata Application Development Ab Inito (ETL tool) CICS
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected] Detail Experience
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Teradata Performance Tuning Pfizer (Teradata contract) - New York, NY. September 2010 - December 2010 Identified poor performing queries in DBQL based on elapsed time, CPU time, skew and Impact CPU, to analysis and conduct performance tuning. Added stats, AJI, Secondary Indexes or rewrote query as necessary. Check tables for skewing, com pression and good primary indices. Worked with developers and instructed them o n good coding practices for best performance. Teradata Production / Application DBA Blue Cross Blue Shield North Carolina - Chapel Hill, NC. April 2010 - September 2010 Maintain production and development systems. Maintain databases, users, roles a nd profiles and monitored running jobs for performance. Teradata tools: TASM, T eradata Manager, PMON, Teradata Administrator, Teradata SQL Assistant, DBW, Visu al Explain, TSET and Netvault. Worked with the development teams and with the data modelers on new projects. Wrote Unix shell scripts that ran background Ter adata utilities such as UPDATESPACE. Performance tuning on poor running queries . Create load both Fastload and Multiload jobs for developers. Teradata Development DBA / Logical and Physical Data Modeler / MySQL DBA Lockheed Martin - Fairborn, OH. September 2008 - April 2010 Various new projects - Created the Logical, Physical, and Concept Data Models f or the project. Created all data object both in Teradata and MySQL. Wrote ETL using BTEQ, Fastload, and Multiloads. Created Store Procedures and Marco. Cond ucted performance tuning and performance analysis on all Teradata SQL. Created QA test plans, Teradata Administration documentation, and deployment documents f or each project. Teradata Developer Nationwide Insurance - Columbus, OH. May 2008 - September 2008 Worked on the Revenue Connection team to maintain the Sales Datamart. Worked on the Sales Planning project which migrated data from DB2 UDB to Teradata. For t his project created load jobs using Fastload and BTEQ imports. Worked on other special projects including with reporting team that optimize tables for Microstr ategy reporting, claims loads, and special loads for exporting Florida and Kentu cky data. Created new BTEQ scripts, Fastloads, Fastexports, and Mload. Externa l documentation and presentations for the existing system. Teradata Development DBA RJ Reynolds - Winston-Salem, NC. January 2008 - April 2008 Worked with development team to implement the Voyager Connect project. Worked o n the physical design and creation of tables and views, column compression, perf ormance tuning, set-up roles, and assist developers with ETL design. Interface with System DBA to set-up BAR schedule, maintain space requirements, and access rights. DAVID WILLIAMS 2416 Camden Lake View
Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Lead Teradata Production DBA - 4 Node Unix DaimlerChrysler Financial Services - Detroit, MI. (Contractor) October 2006 - January 2008 Lead DBA with one other on-site DBA and two off-shore DBA's. New production Tera data system. Helped set-up initial Teradata system including: DBQL, Priority Sc heduler, Account String Expansion, Teradata Manager, TDWM, Backup and Recovery p lan. Created daily and weekly maintenance jobs for: purging and maintaining hist ory, refresh stats, and running Packdisk. Created performance reports from DBQL history to maintain: cpu usage/project each hour, number of report/project eac h hour, run time/project each hour. Created monthly report to management. Monit or normal production and worked as development DBA on new project and helped det ermine physical model. Tools include: xDBW, Teradata Manager, PMON, Teradata A dministrator, Teradata SQL Assistant, xSchmon, xCtl. Performance tuning of new and existing SQL. Create jobs to enhance DBA's productivity such as "skew table " report, "job status" report and others. Created fastload, mulitload and bteq scripts. Teradata Production DBA - 128 Node Unix - Performance Analyst USPS - NCR Eagan MN. (Contractor) June 2006 - October 2006 Monitor daily performance of system and user queries. Rewrite poorly written qu eries and worked with developers to develop coding standards. Maintain system and work with NCR on all upgrades. Worked with DBQL, Priority Scheduler, Active Query Manager (AQM), Teradata Dynamic Workload Manager (TDWM), Teradata Manage r, PMON, Teradata Administrator, VprocManager, Database Window, and Teradata SQ L Assistant. Performed weekly maintenance of running the system by running Pac kdisk, Scan Disk and Checktable. On-call support for production problems. Teradata Developer AT&T - Hoffman Estates, IL (Contractor) April 2006 - June 2006 Modified several Teradata jobs, adding SBC data into AT&T format. Updated docum entation from SBC format into AT&T format. MVS, JCL, BTEQ, MLOAD DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata Production DBA - 8 Node Windows Defense Commissary Agency - Richmond, VA (Contractor) November 2005 - April 2006 Set up and maintained user accounts, roles and profiles. Reorganized the struct ure of the Database and User accounts. Created databases, tables and views. St arted Teradata maintenance programs to regularly run PACKDISK, SCAN DISK, and CH ECK TABLE. Used Database Window, Teradata Command Prompt, Vprocmanager, and Ter adata Mulitool. Implement column statistics on frequently access tables and cre ated daily, weekly, and monthly jobs to refresh statistics. Created plan to enh ance Priority Scheduler. Updated DBS Control Utility settings. Created a plan to change from Access logging to DBQL. Implement a plan to add TDQM. Installed a
nd maintained NETVAULT, both clients and server, installed patches and plugins, and implemented backups, backup schedules, and offsite rotation schedules. Inst alled and maintained Teradata Manager clients and server. Automated several pro cesses that previously were done manually. Maintained and enhanced aggregate jo bs. Worked with Modeler to create new primary indexes and PPI for better perfor mance. Created and maintain jobs using FASTLOAD, FASTEXPORT, MLOAD, and BTEQ. Created Marcos and Stored Procedures. Created and regularly scheduled jobs that : clean DBC tables, clear peak spool, create views, release HUT locks, and recre ate all objects, access rights, roles, logging setting and DDL. Working on the Startup and Shutdown procedure for the database, nodes, and disk arrays. Worked with the AWS and the AWS console. Familiar with the NCR PUT utility. Monitor performance with Teradata Manager and PMON, and assisted users on performance t uning queries at the application level. Monitor cpu usage and active processes with Task Manager and monitor the nodes with Event Viewer, at the node level. Wo rked with NCR on all hardware issues and upgrades. On-call for production probl ems. DBA - Teradata 8 Node Windows, DB2, Oracle Winn-Dixie Stores, Inc. - Jacksonville, FL (Contractor) May 2005 - November 2005 Teradata DBA: Create users, roles, and databases. System restarts, Application tuning, Backups, Restores, System tuning, Priority Scheduler, PMON, Teradata M anager, Database Window, Ferret, Teradata Administrator, SQL Assistant, Fastload s, Multloads, BTEQs. Netvault, Window, Unix, MVS, JCL. Production Change Contro l and Production Support. Performance tuning, TDQM, DBQL. DB2 DBA: Create instances, databases, backup, restores, redirected restores, us er exits. Oracle DBA: Create users, backup, restores, exports, imports. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradate DBA Bell South - Atlanta, GA (Contractor) March 2004 - May 2005 Performed duties such as: performance turning, monitoring production batch jobs , and correcting production problems as they occur. Set-up production environme nt, include creating UNIX directory structures and Teradata databases. Create a space management program, reorganized the database structure, created roles for access rights. Create databases, users and manage access right. Worked with P riority Scheduler, setting up Performance Groups and Allocation Groups. Run spe cial backup and restores using Arcmain. Tools used: Fastload, Multiload, BTEQ, Teradata Manager, Teradata SQL Assistant, Teradata Administrator, Visual Explain , TSET, UNIX. Rotate on call for 24/7 production support. Teradata Developer Teradata ETL/Design NCR - Rockville,MD. (Contractor) October 2002 - February 2004 The first project consisted of creating a small data mart (12 tables). Used Erw in to create a logical and physical data model, created the Teradata tables, and
loaded the data into the tables (one time load) in a UNIX system. The second a nd larger project consisted of receiving data from an Oracle General Ledger Syst em Transforming and Loading (ETL) the data into the Teradata General Ledger dat a mart and creating the UNIX scripts for the daily loads process. Took this pro ject for its' full life cycle, from initial design to production. Calculated C apacity Planning for current and future disk space. Performance Turning and desi gned best use of: Secondary, Joined, and Hash Indexes. Tools used: Fast load, BTEQ, Multiload, Stored Procedures. Teradata Developer Southwestern Bell - St. Louis, MO. (Contractor) May 2002 - October 2002 Created Teradata BTEQs, Stored Procedures, Multiload, Fastloads, Arcmain, Join Indexes and Macros for SBCs re-write of their Winback program. Used REXX to dy namically create Teradata SQL by replacing variable table names in commonly used queries located in SQL templates. The templates were stored in Teradata tables and were dynamically expanded. Performance Tuning of new and existing queries. Teradata Developer Charming Shoppes - Bensalem, Pennsylvania (Contractor) February 2002 - May 2002 Charming Shoppes recently purchased the Lane Bryant Department stores. Extract ed, Transformed and Loaded (ETL) from Lane Bryant's Datawarehouse to Charming Sh oppe's Teradata Datawarehouse. Created Teradata Marcos for data balancing and validation. Created Fastloads, MultiLoad, BTEQs, and FastExports. Analyzed and conducted Performance Tuning on long running queries. Created Views using SQL with DERIVED TABLES DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata DBA/Design Baseline Consulting/Verizon Communications - Atlanta, GA. (Contractor) April 2001 - February 2002 Converted three separate databases (Redbrick, Informix, and DB2) into one Terada ta databases. Worked on data mapping and ETL using both Ab Inito and Cobol. Cr eated a Logical and Physical Data Model using ERwin to create a Microsoft Access Database, then loaded the database, from Microsoft Excel, with the Metadata for the Teradata system. Used FastExport, FastLoad, BTEQ, and MultiLoad. Wrote pr ograms in C++, on a Unix system, for data modifications. Created, loaded, and e xtracted data from tables using DB2 UDB on a Window platform. Teradata DBA/Design Baseline Consulting /NCR/Ford Motor Company - Detroit, MI. (Contractor) December 2000 - March 2001 Extracted data from DB2 and Oracle and loaded into Teradata for Business Objects Reporting. Design Teradata tables and created Logical and Physical Data Models using ERwin design tool. Used DB2 Utilities and SQLPLUS to unload tables. Use d Teradata utilities such as FASTLOAD, BTEQ, and MULTILOAD. Used QUERYMAN for Teradata support. Created Physical Data Model from a completed Logical Model using ERwin. Created
a Capacity Planning Document. Determined final Primary and Secondary Index cho ices for the Physical Model. Determined best Application Utilities and designed production JCL for loading data. Denormalized tables and designed Join Indexes for optimal performance. Helped in creating a one terabyte, MPP, Data warehous e based on the Physical Model. Created Logical Data Mart Teradata DBA/Developer Southwestern Bell - St. Louis, MO. (Contractor) April 2000 - December 2000 Assigned to the Teradata DBA group, which is responsible for Physical Database D esign, including: creating tables, creating views, creating indexes, loading tab les, and maintaining tables. This includes new development, enhancements to exi sting programs, along with on-call production support, for ETL programs that ext racts data from various sources, such as DB2, IMS, Oracle and datasets. Extract ion programs were written in REXX, Cobol, SQLPLUS, and PL/I. Used REXX, to valid ate and compare output processes. Used Teradata utilities such as FASTLOAD, BTE Q, and MULTILOAD. Extensive use of QUERYMAN and IMS EXPERT. Teradata Developer JC Penney - Dallas, Texas (Contractor) June 1999 - February 2000 New development and enhancements using, COBOL II, DB2, CICS, DYL280, & Teradata. Created and executed special programs/jobs as requested by Business Analysts to analysis customer buying base on special advertisements, campaigns, and newspap er inserts. Enhanced existing advertising analysis system with new requirements. Used CICS, DB2 and Platinum utilities, BTEQ, FASTEXPORT, MULTILOAD, & ARCMAIN. Created Cobol programs with embedded Teradata SQL. Created Cobol programs with Dynamic SQL. Created Cobol, CICS, DB2 programs for on-line requests to select and update and local and remote DB2 tables using Distributed Database Facility ( DDF). Trained College Summer Interns and new transition programmers. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata Production Support Coca-Cola - Atlanta. Ga. (Contractor) February 1999 - May 1999 Production Support. Corrective maintenance and enhancements of a Data Collection Management System. Maintained a COBOL II, DB2, CICS, and Teradata (BTEQ, ITEQ, MULTILOAD, FASTEXPORT) System. Investigated and corrected production problems, and made enhancements as needed. One week a month was spent with a pager for a round-the-clock support. Used CA-7 to restart jobs and Demand-In jobs. The syst em loaded volume data, received throughout the day from bottlers located through out the country, into Teradata tables. DB2 was used as control and as summary t ables, and was used to validate batches prior to being loaded, trapping any reco rds that were in error. CICS was used, accessing the DB2 tables, for the Volume Reporting Team to review errors in the batch, review summary information, and o ther uses. BellSouth Advertising & Publishing Corporation - Atlanta, GA. (Contractor) October 1998 - October 1999 (Part time in evenings, working special projects upo n request)
Production Support. Maintained and corrected production problems that occurs on nightly batch. On call 24 hours by Computer Operations. Maintained an IMS DC , IMS DB, DB2, COBOL II system. System is where field agents upload daily sales and orders from their laptop to a UNIX Server. The UNIX Server FTP's the files to the main frame is which I was responsible for maintaining. Files are upload ed in the evening by the field agents into an IMS database, in the morning, the processed files are downloaded to their laptops. Used File-Aid to query the IMS database, to "desk check" code, in order to verify the accurately of output MCI - Atlanta, GA (Contractor) May 1998 - December 1998 Made Y2K changes in four different projects. Three of the projects consisted of 10 to 20 COBOL II programs, all using VSAM as the main data source. One of the se three projects also contained a series of REXX & Dialog Manager Screens. The other project consisted of six SAS programs. Worked with the test team, implem enting test scripts, test plans and designing test data. Created test JCL and e xecuted jobs for the test team and helped verify the results of parallel testing . Arthur Andersen / National Bank of Detroit - Atlanta, GA (Contractor) March 1998 - May 1998 Developed 16 new financial reports for the National Bank of Detroit. The reports were need due to a merger between the National Bank of Detroit and a Chicago ba nk. The two different reporting systems were modified into one reporting syste m. The development was done using COBOL II and DB2. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Deloitte & Touche / KMART - Troy, MI (Contractor) October 1997 - March 1998 Designed and Implemented and system for Kmart to track the cost of merchandise f rom the time it was purchased from the vender to the time it was sold at the sto re. The system consisted of several parts including Freight - Vender to Distrib ution Center, Distribution Center storage cost, Distribution Center administrati on cost, Freight - Distribution Center to Store, Backroom Storage cost, and Inte rest loss. I assisted on the overall technical design of the entire project, an d was completely responsible for the physical and logical design of the DB2 data base, creating a normalized DB2 database - including the DDL to define the colum ns, indexes, and views. Worked extensively with DB2 Loads, Unload, Runstats, Reorg, and Repair utilities , Syncsorts, COBOL II, and DB2. Helped in resolving run time / performance issu es. Developed eight COBOL II, DB2 programs. The SQL statements were very complex, r equiring joins of several tables. IBM / IKON Capital - Macon, GA (Contractor) January 1996 - October 1997 Created countless number of reports (at least 200) mostly in crunch mode. Recei ved initial specifications from the user which usually, requiring inaction with the user to interpret the requirements.
Report writing used: DYL280, COBOL II, DB2, and QMF using forms, including using FTP to download mainframe reports/data to PC directories Ceridian - Dunwoody, GA (Contractor) November 1995 - January 1996 Maintenance and new development of Dialog Manager screens with REXX and COBOL II Developed a series of menu driven screens that prompted and/or gave multiple cho ices to the user. The choices were then used in File Tailoring to update the JC L skeletons and the jobs were submitted allowing a non-technical person to submi t JCL. MCI - Dunwoody, GA (Contractor) June 1995 - November 1995 Batch maintenance, enhancements, and new development: COBOL II and VSAM Received the input from the transaction file that was processed during the day a nd updated a Master file and several different VSAM file some of which were FTP to an external source. Ceridian - Dunwoody, GA (Contractor) January 1995 - June 1995 Developed detail test conditions and test plans, designed test scripts, and assi sted in system and parallel testing. Ceridian was converting from a VSE system to an MVS system. In addition to the testing duties, I was the only programmer on the test team and wrote a COBOL II program that compared the data from a para llel test, field by field. I was the QMF expert and set up QMF queries in QMF p rocs for the entire test team. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Chrysler Motors - Detroit, MI (Contractor) March 1994 - January 1995 New development and enhancements for screens that is used at the car dealers' si te. These screens are used by the service center. It included a menu driven pr ogram that retrieved the input by entering the vehicle VIN number. Some of the screens included: maintenance history, warranty coverage, recall notices, etc. Used COBOL II, CICS, DB2, created BMS, and used expediter for debugging. Ford Motor Company - Detroit, MI (Contractor) March 1993 - March 1994 New development and enhancements on both on-line and batch applications. Both a pplications were sales history. The on-line system broke down the sales by with in the entire country, using one option, the sales could then be broken down by region, using another option, the screen could be further broken down by distric t. The sales were described by model within each of the categories. The screens were scrolling screens, setting up a cursor and retaining the current key in th e communications area. Used COBOL II, DB2, CICS. Created BMS's Electronic Data Systems - Troy, MI (Employee) January 1989 - March 1993 New development and enhancements both on-line and batch. The on-line applicatio
ns were mostly used on the factory floor for GM. It consisted of probably 100 s creens, with 20 different subsystems. I was responsible for four different subs ystems, at different times. Most of the screens scrolled and all used DB2. The batch process used IMS. Created several new reports and maintenance on several reports. In another group I was assigned to in EDS, I worked with FORTRAN on th e VAX. I also worked with CLIST and DIALOG MANAGER on one project that allowed the user to submit JCL using File Tailoring. All on-line and most batch program was PL/I, DB2, & IMS-DC. Another assignment was with the Quality Assurance t eam, there I was responsible for creating test plans and test JCL, and executin g the test plans created by other Quality Assurance team members, for both batch and online programs. Internal Revenue Service - Detroit, MI (Employee) November 1987 - January 1989 Create batch process to produce reports of corporate tax returns. Design and cr eated on-line screens to view specific tax returns. Used COBOL, IDMS-DB, IDMS-D C, & ADS/ONLINE United States Navy (Officer) May 1976 - November 1987
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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TEACHING EXPERIENCE ______________________________________________________________________________
06/00 - 12/00 Instructor - Columbia College - St. Louis, MO. Taught Programming Languages, Visual Basic, Software Engineering, Computer Syste ms & Assembly Language, College Algebra 01/99 - 03/99 Adjunct Professor - Collins County Community College - Frisco TX. Taught Visual Basic 08/99 - 03/99 Instructor - Computer Learning Center - Garland TX. Taught DOS 6.2, and Windows 95 (for network administers), DOS 6.2, Windows 3.1 & Windows 95 (for end users), Cobol, Visual Basic, and Computer Fundamentals 09/98 - 05/99 Adjunct Professor - Georgia Perimeter College Taught C++ Programming, Pascal & Introduction to Computer Science 07/98 - 03/99 Instructor - Herzing College (Accredited 4-year college) Taught Algebra & C++ Programming
03/93 - 12/94 Instructor - SER Business & Technical Institute Taught WordPerfect, dBase, Lotus, Business Math, Business English, Computer Lite racy, Typing, and Professional Development 12/89 - 12/94 Adjunct Professor - Detroit College of Business (Accredited 4-year college) Taught RPG/400, RPG III, Introduction to Programming System, & System Developm ent DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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11/90 - 09/92 Instructor - America Career Academy Taught WordPerfect, dBase, Lotus, Typing, Math, English, Office Procedures, Empl oyment Readiness 09/88 - 01/89 Instructor - Jordan College Taught Introduction to Computers, Supercal, & dBase 07/88 - 09/90 Programming Instructor - Programming System Institute Taught beginning programming students in Basic, Assembler, RPG III, & COBOL
Last Updated: 12/16/10
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07/04 Teradata Certified Master V2R5 02/02 Teradata Certified Master 02/02 Teradata Certified Application Developer 10/01 Teradata Certified Administrator 06/01 Teradata Certified Designer
04/01 Advanced Teradata Certified Professional 04/01 Teradata Certified SQL Specialist 03/01 Teradata Certified Implementation Specialist 03/01 Teradata Certified Professional 07/04 Oracle9i Performance Tuning 05/04 Oracle9i Fundamentals II 09/02 Oracle9i Fundamentals I 04/02 Oracle9i SQL 01/04 12/04 10/04 09/04 08/04 02/03 Comptia IT Project+ Comptia Security+ Comptia Server+ Comptia I-Net+ Comptia Network+ Comptia A+
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Adjunct Professor of Computer Science/Instructor 10 years - See pages 12 and 13 Advanced Technical Training NCR Web Base Classes (1 to 2 hours each) Investigating Big Table Small Table (STAR) Joins Intro to Disaster Recovery Teradata Query Optimization Teradata Self Management Performance Turning and Analysis Overview MPP Multi-Node Systems A Few Seconds in the Life of an SQL Request Teradata Warehouse Builder Explaining the Explain TPump Tips and Techniques Roles and Responsibilities of a Teradata DBA Update on Teradata V2R4 Stored Procedures Continuous Load with TPump SQL Tips & Techniques Teradata Disk Arrays and UNIX Teradata Access Module Processor Teradata Parsing Engine Introduction to Data Mining for Teradata Users Understanding Join Indexes Considerations, Choices, Consequences and Criteria for Teradata Success Advanced Indexing for High Performance in a Teradata Data Warehouse Anticipating & Justifying Growth - Capacity Planning Oracle to Teradata DB2 to Teradata NCR 02/02 05/01 10/98 Instructor Lead Classes Teradata Application Development Ab Inito (ETL tool) CICS
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected] Detail Experience
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Teradata Performance Tuning Pfizer (Teradata contract) - New York, NY. September 2010 - December 2010 Identified poor performing queries in DBQL based on elapsed time, CPU time, skew and Impact CPU, to analysis and conduct performance tuning. Added stats, AJI, Secondary Indexes or rewrote query as necessary. Check tables for skewing, com pression and good primary indices. Worked with developers and instructed them o n good coding practices for best performance. Teradata Production / Application DBA Blue Cross Blue Shield North Carolina - Chapel Hill, NC. April 2010 - September 2010 Maintain production and development systems. Maintain databases, users, roles a nd profiles and monitored running jobs for performance. Teradata tools: TASM, T eradata Manager, PMON, Teradata Administrator, Teradata SQL Assistant, DBW, Visu al Explain, TSET and Netvault. Worked with the development teams and with the data modelers on new projects. Wrote Unix shell scripts that ran background Ter adata utilities such as UPDATESPACE. Performance tuning on poor running queries . Create load both Fastload and Multiload jobs for developers. Teradata Development DBA / Logical and Physical Data Modeler / MySQL DBA Lockheed Martin - Fairborn, OH. September 2008 - April 2010 Various new projects - Created the Logical, Physical, and Concept Data Models f or the project. Created all data object both in Teradata and MySQL. Wrote ETL using BTEQ, Fastload, and Multiloads. Created Store Procedures and Marco. Cond ucted performance tuning and performance analysis on all Teradata SQL. Created QA test plans, Teradata Administration documentation, and deployment documents f or each project. Teradata Developer Nationwide Insurance - Columbus, OH. May 2008 - September 2008 Worked on the Revenue Connection team to maintain the Sales Datamart. Worked on the Sales Planning project which migrated data from DB2 UDB to Teradata. For t his project created load jobs using Fastload and BTEQ imports. Worked on other special projects including with reporting team that optimize tables for Microstr ategy reporting, claims loads, and special loads for exporting Florida and Kentu cky data. Created new BTEQ scripts, Fastloads, Fastexports, and Mload. Externa l documentation and presentations for the existing system. Teradata Development DBA RJ Reynolds - Winston-Salem, NC. January 2008 - April 2008 Worked with development team to implement the Voyager Connect project. Worked o n the physical design and creation of tables and views, column compression, perf ormance tuning, set-up roles, and assist developers with ETL design. Interface with System DBA to set-up BAR schedule, maintain space requirements, and access rights. DAVID WILLIAMS 2416 Camden Lake View
Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Lead Teradata Production DBA - 4 Node Unix DaimlerChrysler Financial Services - Detroit, MI. (Contractor) October 2006 - January 2008 Lead DBA with one other on-site DBA and two off-shore DBA's. New production Tera data system. Helped set-up initial Teradata system including: DBQL, Priority Sc heduler, Account String Expansion, Teradata Manager, TDWM, Backup and Recovery p lan. Created daily and weekly maintenance jobs for: purging and maintaining hist ory, refresh stats, and running Packdisk. Created performance reports from DBQL history to maintain: cpu usage/project each hour, number of report/project eac h hour, run time/project each hour. Created monthly report to management. Monit or normal production and worked as development DBA on new project and helped det ermine physical model. Tools include: xDBW, Teradata Manager, PMON, Teradata A dministrator, Teradata SQL Assistant, xSchmon, xCtl. Performance tuning of new and existing SQL. Create jobs to enhance DBA's productivity such as "skew table " report, "job status" report and others. Created fastload, mulitload and bteq scripts. Teradata Production DBA - 128 Node Unix - Performance Analyst USPS - NCR Eagan MN. (Contractor) June 2006 - October 2006 Monitor daily performance of system and user queries. Rewrite poorly written qu eries and worked with developers to develop coding standards. Maintain system and work with NCR on all upgrades. Worked with DBQL, Priority Scheduler, Active Query Manager (AQM), Teradata Dynamic Workload Manager (TDWM), Teradata Manage r, PMON, Teradata Administrator, VprocManager, Database Window, and Teradata SQ L Assistant. Performed weekly maintenance of running the system by running Pac kdisk, Scan Disk and Checktable. On-call support for production problems. Teradata Developer AT&T - Hoffman Estates, IL (Contractor) April 2006 - June 2006 Modified several Teradata jobs, adding SBC data into AT&T format. Updated docum entation from SBC format into AT&T format. MVS, JCL, BTEQ, MLOAD DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata Production DBA - 8 Node Windows Defense Commissary Agency - Richmond, VA (Contractor) November 2005 - April 2006 Set up and maintained user accounts, roles and profiles. Reorganized the struct ure of the Database and User accounts. Created databases, tables and views. St arted Teradata maintenance programs to regularly run PACKDISK, SCAN DISK, and CH ECK TABLE. Used Database Window, Teradata Command Prompt, Vprocmanager, and Ter adata Mulitool. Implement column statistics on frequently access tables and cre ated daily, weekly, and monthly jobs to refresh statistics. Created plan to enh ance Priority Scheduler. Updated DBS Control Utility settings. Created a plan to change from Access logging to DBQL. Implement a plan to add TDQM. Installed a
nd maintained NETVAULT, both clients and server, installed patches and plugins, and implemented backups, backup schedules, and offsite rotation schedules. Inst alled and maintained Teradata Manager clients and server. Automated several pro cesses that previously were done manually. Maintained and enhanced aggregate jo bs. Worked with Modeler to create new primary indexes and PPI for better perfor mance. Created and maintain jobs using FASTLOAD, FASTEXPORT, MLOAD, and BTEQ. Created Marcos and Stored Procedures. Created and regularly scheduled jobs that : clean DBC tables, clear peak spool, create views, release HUT locks, and recre ate all objects, access rights, roles, logging setting and DDL. Working on the Startup and Shutdown procedure for the database, nodes, and disk arrays. Worked with the AWS and the AWS console. Familiar with the NCR PUT utility. Monitor performance with Teradata Manager and PMON, and assisted users on performance t uning queries at the application level. Monitor cpu usage and active processes with Task Manager and monitor the nodes with Event Viewer, at the node level. Wo rked with NCR on all hardware issues and upgrades. On-call for production probl ems. DBA - Teradata 8 Node Windows, DB2, Oracle Winn-Dixie Stores, Inc. - Jacksonville, FL (Contractor) May 2005 - November 2005 Teradata DBA: Create users, roles, and databases. System restarts, Application tuning, Backups, Restores, System tuning, Priority Scheduler, PMON, Teradata M anager, Database Window, Ferret, Teradata Administrator, SQL Assistant, Fastload s, Multloads, BTEQs. Netvault, Window, Unix, MVS, JCL. Production Change Contro l and Production Support. Performance tuning, TDQM, DBQL. DB2 DBA: Create instances, databases, backup, restores, redirected restores, us er exits. Oracle DBA: Create users, backup, restores, exports, imports. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradate DBA Bell South - Atlanta, GA (Contractor) March 2004 - May 2005 Performed duties such as: performance turning, monitoring production batch jobs , and correcting production problems as they occur. Set-up production environme nt, include creating UNIX directory structures and Teradata databases. Create a space management program, reorganized the database structure, created roles for access rights. Create databases, users and manage access right. Worked with P riority Scheduler, setting up Performance Groups and Allocation Groups. Run spe cial backup and restores using Arcmain. Tools used: Fastload, Multiload, BTEQ, Teradata Manager, Teradata SQL Assistant, Teradata Administrator, Visual Explain , TSET, UNIX. Rotate on call for 24/7 production support. Teradata Developer Teradata ETL/Design NCR - Rockville,MD. (Contractor) October 2002 - February 2004 The first project consisted of creating a small data mart (12 tables). Used Erw in to create a logical and physical data model, created the Teradata tables, and
loaded the data into the tables (one time load) in a UNIX system. The second a nd larger project consisted of receiving data from an Oracle General Ledger Syst em Transforming and Loading (ETL) the data into the Teradata General Ledger dat a mart and creating the UNIX scripts for the daily loads process. Took this pro ject for its' full life cycle, from initial design to production. Calculated C apacity Planning for current and future disk space. Performance Turning and desi gned best use of: Secondary, Joined, and Hash Indexes. Tools used: Fast load, BTEQ, Multiload, Stored Procedures. Teradata Developer Southwestern Bell - St. Louis, MO. (Contractor) May 2002 - October 2002 Created Teradata BTEQs, Stored Procedures, Multiload, Fastloads, Arcmain, Join Indexes and Macros for SBCs re-write of their Winback program. Used REXX to dy namically create Teradata SQL by replacing variable table names in commonly used queries located in SQL templates. The templates were stored in Teradata tables and were dynamically expanded. Performance Tuning of new and existing queries. Teradata Developer Charming Shoppes - Bensalem, Pennsylvania (Contractor) February 2002 - May 2002 Charming Shoppes recently purchased the Lane Bryant Department stores. Extract ed, Transformed and Loaded (ETL) from Lane Bryant's Datawarehouse to Charming Sh oppe's Teradata Datawarehouse. Created Teradata Marcos for data balancing and validation. Created Fastloads, MultiLoad, BTEQs, and FastExports. Analyzed and conducted Performance Tuning on long running queries. Created Views using SQL with DERIVED TABLES DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata DBA/Design Baseline Consulting/Verizon Communications - Atlanta, GA. (Contractor) April 2001 - February 2002 Converted three separate databases (Redbrick, Informix, and DB2) into one Terada ta databases. Worked on data mapping and ETL using both Ab Inito and Cobol. Cr eated a Logical and Physical Data Model using ERwin to create a Microsoft Access Database, then loaded the database, from Microsoft Excel, with the Metadata for the Teradata system. Used FastExport, FastLoad, BTEQ, and MultiLoad. Wrote pr ograms in C++, on a Unix system, for data modifications. Created, loaded, and e xtracted data from tables using DB2 UDB on a Window platform. Teradata DBA/Design Baseline Consulting /NCR/Ford Motor Company - Detroit, MI. (Contractor) December 2000 - March 2001 Extracted data from DB2 and Oracle and loaded into Teradata for Business Objects Reporting. Design Teradata tables and created Logical and Physical Data Models using ERwin design tool. Used DB2 Utilities and SQLPLUS to unload tables. Use d Teradata utilities such as FASTLOAD, BTEQ, and MULTILOAD. Used QUERYMAN for Teradata support. Created Physical Data Model from a completed Logical Model using ERwin. Created
a Capacity Planning Document. Determined final Primary and Secondary Index cho ices for the Physical Model. Determined best Application Utilities and designed production JCL for loading data. Denormalized tables and designed Join Indexes for optimal performance. Helped in creating a one terabyte, MPP, Data warehous e based on the Physical Model. Created Logical Data Mart Teradata DBA/Developer Southwestern Bell - St. Louis, MO. (Contractor) April 2000 - December 2000 Assigned to the Teradata DBA group, which is responsible for Physical Database D esign, including: creating tables, creating views, creating indexes, loading tab les, and maintaining tables. This includes new development, enhancements to exi sting programs, along with on-call production support, for ETL programs that ext racts data from various sources, such as DB2, IMS, Oracle and datasets. Extract ion programs were written in REXX, Cobol, SQLPLUS, and PL/I. Used REXX, to valid ate and compare output processes. Used Teradata utilities such as FASTLOAD, BTE Q, and MULTILOAD. Extensive use of QUERYMAN and IMS EXPERT. Teradata Developer JC Penney - Dallas, Texas (Contractor) June 1999 - February 2000 New development and enhancements using, COBOL II, DB2, CICS, DYL280, & Teradata. Created and executed special programs/jobs as requested by Business Analysts to analysis customer buying base on special advertisements, campaigns, and newspap er inserts. Enhanced existing advertising analysis system with new requirements. Used CICS, DB2 and Platinum utilities, BTEQ, FASTEXPORT, MULTILOAD, & ARCMAIN. Created Cobol programs with embedded Teradata SQL. Created Cobol programs with Dynamic SQL. Created Cobol, CICS, DB2 programs for on-line requests to select and update and local and remote DB2 tables using Distributed Database Facility ( DDF). Trained College Summer Interns and new transition programmers. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Teradata Production Support Coca-Cola - Atlanta. Ga. (Contractor) February 1999 - May 1999 Production Support. Corrective maintenance and enhancements of a Data Collection Management System. Maintained a COBOL II, DB2, CICS, and Teradata (BTEQ, ITEQ, MULTILOAD, FASTEXPORT) System. Investigated and corrected production problems, and made enhancements as needed. One week a month was spent with a pager for a round-the-clock support. Used CA-7 to restart jobs and Demand-In jobs. The syst em loaded volume data, received throughout the day from bottlers located through out the country, into Teradata tables. DB2 was used as control and as summary t ables, and was used to validate batches prior to being loaded, trapping any reco rds that were in error. CICS was used, accessing the DB2 tables, for the Volume Reporting Team to review errors in the batch, review summary information, and o ther uses. BellSouth Advertising & Publishing Corporation - Atlanta, GA. (Contractor) October 1998 - October 1999 (Part time in evenings, working special projects upo n request)
Production Support. Maintained and corrected production problems that occurs on nightly batch. On call 24 hours by Computer Operations. Maintained an IMS DC , IMS DB, DB2, COBOL II system. System is where field agents upload daily sales and orders from their laptop to a UNIX Server. The UNIX Server FTP's the files to the main frame is which I was responsible for maintaining. Files are upload ed in the evening by the field agents into an IMS database, in the morning, the processed files are downloaded to their laptops. Used File-Aid to query the IMS database, to "desk check" code, in order to verify the accurately of output MCI - Atlanta, GA (Contractor) May 1998 - December 1998 Made Y2K changes in four different projects. Three of the projects consisted of 10 to 20 COBOL II programs, all using VSAM as the main data source. One of the se three projects also contained a series of REXX & Dialog Manager Screens. The other project consisted of six SAS programs. Worked with the test team, implem enting test scripts, test plans and designing test data. Created test JCL and e xecuted jobs for the test team and helped verify the results of parallel testing . Arthur Andersen / National Bank of Detroit - Atlanta, GA (Contractor) March 1998 - May 1998 Developed 16 new financial reports for the National Bank of Detroit. The reports were need due to a merger between the National Bank of Detroit and a Chicago ba nk. The two different reporting systems were modified into one reporting syste m. The development was done using COBOL II and DB2. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Deloitte & Touche / KMART - Troy, MI (Contractor) October 1997 - March 1998 Designed and Implemented and system for Kmart to track the cost of merchandise f rom the time it was purchased from the vender to the time it was sold at the sto re. The system consisted of several parts including Freight - Vender to Distrib ution Center, Distribution Center storage cost, Distribution Center administrati on cost, Freight - Distribution Center to Store, Backroom Storage cost, and Inte rest loss. I assisted on the overall technical design of the entire project, an d was completely responsible for the physical and logical design of the DB2 data base, creating a normalized DB2 database - including the DDL to define the colum ns, indexes, and views. Worked extensively with DB2 Loads, Unload, Runstats, Reorg, and Repair utilities , Syncsorts, COBOL II, and DB2. Helped in resolving run time / performance issu es. Developed eight COBOL II, DB2 programs. The SQL statements were very complex, r equiring joins of several tables. IBM / IKON Capital - Macon, GA (Contractor) January 1996 - October 1997 Created countless number of reports (at least 200) mostly in crunch mode. Recei ved initial specifications from the user which usually, requiring inaction with the user to interpret the requirements.
Report writing used: DYL280, COBOL II, DB2, and QMF using forms, including using FTP to download mainframe reports/data to PC directories Ceridian - Dunwoody, GA (Contractor) November 1995 - January 1996 Maintenance and new development of Dialog Manager screens with REXX and COBOL II Developed a series of menu driven screens that prompted and/or gave multiple cho ices to the user. The choices were then used in File Tailoring to update the JC L skeletons and the jobs were submitted allowing a non-technical person to submi t JCL. MCI - Dunwoody, GA (Contractor) June 1995 - November 1995 Batch maintenance, enhancements, and new development: COBOL II and VSAM Received the input from the transaction file that was processed during the day a nd updated a Master file and several different VSAM file some of which were FTP to an external source. Ceridian - Dunwoody, GA (Contractor) January 1995 - June 1995 Developed detail test conditions and test plans, designed test scripts, and assi sted in system and parallel testing. Ceridian was converting from a VSE system to an MVS system. In addition to the testing duties, I was the only programmer on the test team and wrote a COBOL II program that compared the data from a para llel test, field by field. I was the QMF expert and set up QMF queries in QMF p rocs for the entire test team. DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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Chrysler Motors - Detroit, MI (Contractor) March 1994 - January 1995 New development and enhancements for screens that is used at the car dealers' si te. These screens are used by the service center. It included a menu driven pr ogram that retrieved the input by entering the vehicle VIN number. Some of the screens included: maintenance history, warranty coverage, recall notices, etc. Used COBOL II, CICS, DB2, created BMS, and used expediter for debugging. Ford Motor Company - Detroit, MI (Contractor) March 1993 - March 1994 New development and enhancements on both on-line and batch applications. Both a pplications were sales history. The on-line system broke down the sales by with in the entire country, using one option, the sales could then be broken down by region, using another option, the screen could be further broken down by distric t. The sales were described by model within each of the categories. The screens were scrolling screens, setting up a cursor and retaining the current key in th e communications area. Used COBOL II, DB2, CICS. Created BMS's Electronic Data Systems - Troy, MI (Employee) January 1989 - March 1993 New development and enhancements both on-line and batch. The on-line applicatio
ns were mostly used on the factory floor for GM. It consisted of probably 100 s creens, with 20 different subsystems. I was responsible for four different subs ystems, at different times. Most of the screens scrolled and all used DB2. The batch process used IMS. Created several new reports and maintenance on several reports. In another group I was assigned to in EDS, I worked with FORTRAN on th e VAX. I also worked with CLIST and DIALOG MANAGER on one project that allowed the user to submit JCL using File Tailoring. All on-line and most batch program was PL/I, DB2, & IMS-DC. Another assignment was with the Quality Assurance t eam, there I was responsible for creating test plans and test JCL, and executin g the test plans created by other Quality Assurance team members, for both batch and online programs. Internal Revenue Service - Detroit, MI (Employee) November 1987 - January 1989 Create batch process to produce reports of corporate tax returns. Design and cr eated on-line screens to view specific tax returns. Used COBOL, IDMS-DB, IDMS-D C, & ADS/ONLINE United States Navy (Officer) May 1976 - November 1987
DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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TEACHING EXPERIENCE ______________________________________________________________________________
06/00 - 12/00 Instructor - Columbia College - St. Louis, MO. Taught Programming Languages, Visual Basic, Software Engineering, Computer Syste ms & Assembly Language, College Algebra 01/99 - 03/99 Adjunct Professor - Collins County Community College - Frisco TX. Taught Visual Basic 08/99 - 03/99 Instructor - Computer Learning Center - Garland TX. Taught DOS 6.2, and Windows 95 (for network administers), DOS 6.2, Windows 3.1 & Windows 95 (for end users), Cobol, Visual Basic, and Computer Fundamentals 09/98 - 05/99 Adjunct Professor - Georgia Perimeter College Taught C++ Programming, Pascal & Introduction to Computer Science 07/98 - 03/99 Instructor - Herzing College (Accredited 4-year college) Taught Algebra & C++ Programming
03/93 - 12/94 Instructor - SER Business & Technical Institute Taught WordPerfect, dBase, Lotus, Business Math, Business English, Computer Lite racy, Typing, and Professional Development 12/89 - 12/94 Adjunct Professor - Detroit College of Business (Accredited 4-year college) Taught RPG/400, RPG III, Introduction to Programming System, & System Developm ent DAVID WILLIAMS 2416 Camden Lake View Acworth, GA. 30101 Cell 770-891-6361 [email protected]
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11/90 - 09/92 Instructor - America Career Academy Taught WordPerfect, dBase, Lotus, Typing, Math, English, Office Procedures, Empl oyment Readiness 09/88 - 01/89 Instructor - Jordan College Taught Introduction to Computers, Supercal, & dBase 07/88 - 09/90 Programming Instructor - Programming System Institute Taught beginning programming students in Basic, Assembler, RPG III, & COBOL
Last Updated: 12/16/10
