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/ Reactive index strategy.sql
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July 29, 2024 19:32
Database and SQL performance tuning is a persistent focus, which many times leads into the indexing strategy. In this gist, I show how some of the existing tools can be tied together to achieve an automated "DBE in a box".
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| -- Subject: DBE in a box | |
| -- Author: Scott Forstie | |
| -- Date : August, 2023 | |
| -- Features Used : This Gist uses SQL PL, qsys2.SYSTEM_STATUS_INFO_basic, systools.lprintf, qsys2.sysixadv, qsys2.sysindexes, QSYS2.SYSINDEXSTAT, SYSTOOLS.ACT_ON_INDEX_ADVICE, QSYS2.RESET_TABLE_INDEX_STATISTICS and SYSTOOLS.REMOVE_INDEXES | |
| -- | |
| -- Note: | |
| -- 1) Indexes are not free, and care should be taken when deciding whether an index is worth creating | |
| -- 2) Indexes are not free, and care should be taken to understand whether adequate system resources are available before creating additional indexes | |
| -- 3) Indexes are not free, and care should be taken to establish a well trained Database Engineer (DBE) responsible for your IBM i partitions | |
| -- |