As Teradata developer, responsible for maintaining all DBA functions (development, test, production) in operation 24×7.
Performance tuning, including collecting statistics, analyzing explains & determining which tables needed statistics. Increased performance by 35-40% in some situations.
Multiload, BTEQ, created & modified databases, performed capacity planning, allocated space, granted rights for all objects within databases, etc
Moved databases between machines.
Installed patch sets and upgraded Teradata.
Automated data warehousing and datamart refreshes using Transportable table space option.
Worked on creating and managing the partitions.
Performed database health checks and tuned the databases using Teradata Manager.
Deliver new and complex high quality solutions to clients in response to varying business requirements and Creating and managing user accounts.
Installed Teradata drivers for the teradata utilities.
Refreshed the data by using fastexport and fastload utilities.
Used Teradata Administrator and Teradata Manager Tools for monitoring and control the system.
Creating and modifying MULTI LOADS for Informatica using UNIX and Loading data into IDW.
Loading data from various data sources and legacy systems into Teradata production and development warehouse using BTEQ, FASTEXPORT, MULTI LOAD, FASTLOAD and Informatica.
With the in-depth expertise in the Teradata cost based query optimizer, identified potential bottlenecks with queries from the aspects of query writing, skewed redistributions, join order, optimizer statistics, physical design considerations (PI and USI and NUSI and JI etc) etc. In-depth knowledge of Teradata Explain and Visual Explain to analyze and improve query performance.
Working as an On-Site Teradata Lead DBA, doing DBA activities that are Implementation of data and table-level security, setting up access rights and space rights for Teradata environment. Performance tuning, Monitoring and reporting Review system utilization by user.
Acted as a liaison between the offshore and on-site teams.