Web Reference: Oct 4, 2024 · Learn about the factors that the query optimizer considers to determine the best query plan and components that make up the SQL query optimizer. Sep 17, 2024 · In this article, we’ll dive into some practical tips for optimizing SQL queries in Teradata. The first step in performance tuning is the use of EXPLAIN on your query. EXPLAIN plan gives the details of how optimizer will execute your query. In the Explain plan, check for the keywords like confidence level, join strategy used, spool file size, redistribution, etc.
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