Tomas Görner

Freelance Data Warehouse consultant & performance specialist with over 13 years of experience in Teradata, Aster and Hadoop. Core competencies include performance optimization, system architecture and database administration.

- Teradata Performance Analysis - SQL Tuning - ETL Optimization - Physical Design Recommendations - Teradata Statistics Management - User Training & Best Practices - Migration to a new data model - Upgrade to Teradata 16.20

- System upgrades & Server migration planning - Teradata Aster Administration & Automation - Teradata Hadoop Administration & Automation - Aster/Hadoop Trainings & Best Practices - Aster/Hadoop Security hardening

- Teradata Technical Lead - Aster/Teradata/Hadoop DBA - Aster/Teradata/Hadoop Architecture - Aster/Teradata/Hadoop Performance Optimization - Aster/Teradata/Hadoop Recommendations & Best Practices - Aster/Teradata/Hadoop BAR Solution

Teradata SQL Developer, Performance Analyst and DBA for various clients in Europe.

- optimization of critical ETL jobs and user requests - improvement of overall Teradata performance - SQL optimization - application of various optimization techniques (statistics, PI partitioning, indexes, recommendation of appropriate ETL tools, compression, etc) - database design - data migration - backup/restore architecture - access rights management - priority management (TASM) - Foundation of Performance Unit - Migration from Teradata v2r6 to Teradata 13.0