Cumulative Update 3 for SQL Server 2017

This article describes Cumulative Update package 3 (CU3) for Microsoft SQL Server 2017. This update contains fixes that were released after the initial release of SQL Server 2017 and updates the SQL Server and Analysis services components to the following builds:

IMPORTANT

If you use the Query Store feature and have previously installed Cumulative Update 2 (CU2) (14.0.3008.27), after installing CU3 (14.0.3015.40) or higher, you must immediately execute the following script to delete all plans collected by Query Store while CU2 was installed:

SET NOCOUNT ON;DROP TABLE IF EXISTS #tmpUserDBs;SELECT [database_id], 0 AS [IsDone]INTO #tmpUserDBsFROM master.sys.databasesWHERE [database_id] > 4 AND [state] = 0 -- must be ONLINE AND is_read_only = 0 -- cannot be READ_ONLY AND [database_id] NOT IN (SELECT dr.database_id FROM sys.dm_hadr_database_replica_states dr -- Except all local Always On secondary replicas  INNER JOIN sys.dm_hadr_availability_replica_states rs ON dr.group_id = rs.group_id  INNER JOIN sys.databases d ON dr.database_id = d.database_id  WHERE rs.role = 2 -- Is Secondary   AND dr.is_local = 1   AND rs.is_local = 1)DECLARE @userDB sysname;WHILE (SELECT COUNT([database_id]) FROM #tmpUserDBs WHERE [IsDone] = 0) > 0BEGIN SELECT TOP 1 @userDB = DB_NAME([database_id]) FROM #tmpUserDBs WHERE [IsDone] = 0 -- PRINT 'Working on database ' + @userDB EXEC ('USE [' + @userDB + '];DECLARE @clearPlan bigint, @clearQry bigint;IF EXISTS (SELECT [actual_state] FROM sys.database_query_store_options WHERE [actual_state] IN (1,2))BEGIN IF EXISTS (SELECT plan_id FROM sys.query_store_plan WHERE engine_version = ''14.0.3008.27'') BEGIN  DROP TABLE IF EXISTS #tmpclearPlans;  SELECT plan_id, query_id, 0 AS [IsDone]  INTO #tmpclearPlans  FROM sys.query_store_plan WHERE engine_version = ''14.0.3008.27''  WHILE (SELECT COUNT(plan_id) FROM #tmpclearPlans WHERE [IsDone] = 0) > 0  BEGIN   SELECT TOP 1 @clearPlan = plan_id, @clearQry = query_id FROM #tmpclearPlans WHERE [IsDone] = 0   EXECUTE sys.sp_query_store_unforce_plan @clearQry, @clearPlan;   EXECUTE sys.sp_query_store_remove_plan @clearPlan;   UPDATE #tmpclearPlans   SET [IsDone] = 1   WHERE plan_id = @clearPlan AND query_id = @clearQry  END;  PRINT ''- Cleared possibly affected plans in database [' + @userDB + ']'' END ELSE BEGIN  PRINT ''- No affected plans in database [' + @userDB + ']'' ENDENDELSEBEGIN PRINT ''- Query Store not enabled in database [' + @userDB + ']''END')  UPDATE #tmpUserDBs  SET [IsDone] = 1  WHERE [database_id] = DB_ID(@userDB)END

Cumulative update

Cumulative updates (CU) are now available at the Microsoft Download Center.

Only the most recent CU that was released for SQL Server 2017 is available at the Download Center.

CU packages for Linux are available at https://packages.microsoft.com/.

Notes

• Each new CU contains all the fixes that were included in the previous CU for the installed version of SQL Server.
• SQL Server CUs are certified to the same levels as Service Packs, and should be installed at the same level of confidence.
• Microsoft recommends ongoing, proactive installation of CUs as they become available:
  
  
  • Historical data shows that a significant number of support cases involve an issue that has already been addressed in a released CU.
  • CUs may contain added value over and above hotfixes. This includes supportability, manageability, and reliability updates.
• We recommend that you test CUs before you deploy them to production environments.