Major SQL updates don’t skip – SQL Server 2016 SP2 CU7 and SQL Server 2017 CU 15

May 26th, 2019 by Stephen Jones Leave a reply »

This week, Microsoft released two major updates.

SQL Server 2016 SP2 CU7 has multiple fixes including:

• Filtered index corruption
• Access violations in sys.dm_exec_query_statistics_xml, sys.dm_hadr_availability_replica_states, sys.availability_replicas, sys.dm_db_xtp_hash_index_stats, sys.fn_dump_dblog, sys.dm_db_xtp_checkpoint_files
(I.e. if you monitor your servers, which you should, then you should apply this CU to avoid problems caused by the monitoring tool’s queries)
• AG failover fails
• Incorrect query results on columnstore indexes, and also this

SQL Server 2017 CU 15 has even MORE fixes, read the full list. https://support.microsoft.com/en-us/help/4498951/cumulative-update-15-for-sql-server-2017

Note also, that from SQL Server 2017, the Analysis Services build version number and SQL Server Database Engine build version number do not match

There are some CUs you might be tempted to skip because they don’t affect you. These releases will affect a wide range of features and you should plan to apply these sooner than later.

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