[IBM DB2] 7. Solve "can not explain query" when upgrade DB2 version

[IBM DB2] 7. Solve "can not explain query" when upgrade DB2 version

D??ng Xuan ?à D??ng Xuan ?à

D??ng Xuan ?à

??Java Software Engineer | Oracle Certified Professional

发布日期: 2024年11月25日
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When upgrade from IBM DB2 from version 11.5.4 to 11.5.9. We may encounter errors when running EXPLAIN commands. The changes to EXPLAIN tables were introduced in Db2 version 11.5.5, and databases upgraded from earlier versions require an update to the EXPLAIN table structures to align with the new format.

  • Required Actions: You need to either recreate or upgrade your EXPLAIN tables.

errors when running

Script to update the EXPLAIN tables: 

CALL SYSPROC.SYSINSTALLOBJECTS('EXPLAIN', 'M', NULL, 'your-schema');
Update EXPLAIN tables command

After run upgrade command, we can explain a query as expected.


Thanks for reading!!


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