Teradata utilities are very important while working with SQL and in data warehousing projects. The below short and crispy definitions help you can use while attending for interviews or in your day to day work to refresh your Teradata knowledge.
- MultiLoad - Inserts, updates, deletes, or upserts rows in a Teradata table by using the MLOAD command-line utility. It can handle multiple SQL statements in a single operation. You can provide user-defined SQL for complex operations. This stage is best used for bulk updates, deletes, upserts, and complex interface operations.
- TPump - Inserts, updates, deletes, or upserts rows in a Teradata table using the TPUMP command-line utility. It can do concurrent updates on the same table. It can handle multiple SQL statements in a single operation. You can provide user-defined SQL for complex operations.
- FastExport - Exports data from a Teradata table by using the FEXP command-line utility. You can customize it to use user-defined SQL statements for extraction. This stage is best used for bulk extracts from Teradata.
This post first appeared on SriniTera - Data Analysis Solutions, please read the originial post: here
