17.00 - 17.05 - Options for Flushing the DBQL Cache - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - Database Administration

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
17.05
Published
June 2020
Language
English (United States)
Last Update
2021-01-22
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Before Vantage writes DBQL data to Data Dictionary tables, it holds the data in cache until either:

  • The cache is full.
  • You end query logging.
  • The number of seconds has elapsed that you define in the DBS Control utility field DBQLFlushRate.
    You can select a rate from 1 to 3,600 seconds. However, Teradata recommends a flush rate of at least 10 minutes (600 seconds), which is the default. Less than 10 minutes can impact performance.
  • You flush the DBQL cache manually.