PRDD_MAINTAIN_DATABASES: Improved safty checks
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@ -1,3 +1,6 @@
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USE [DD_SYS]
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GO
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SET ANSI_NULLS ON
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GO
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SET QUOTED_IDENTIFIER ON
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@ -11,19 +14,20 @@ GO
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--
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-- Returns: INT Value - 0 = Everything worked well
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-- =================================================================
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-- Copyright (c) 2024 by Digital Data GmbH
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-- Copyright (c) 2025 by Digital Data GmbH
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--
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-- Digital Data GmbH • Ludwig-Rinn-Strasse 16 • D-35452 Heuchelheim
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-- Tel.: 0641/202360 • E-Mail: info-flow@digitaldata.works
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-- =================================================================
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-- Creation Date / Author: 29.11.2024 / MK
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-- Version Date / Editor: 13.12.2024 / MK
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-- Version Number: 1.1.0.1
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-- Version Date / Editor: 20.03.2025 / MK
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-- Version Number: 1.2.0.0
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-- =================================================================
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-- History:
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-- 29.11.2024 / MK - First Version
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-- 06.12.2024 / MK - Added "SET ONLINE" after forced SINGLE_USER Mode, Added repair parameter for DBCHECK, added @pRECOMPILEPROCEDURES, some minor error fixes
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-- 13.12.2024 / MK - New way the get the procedure name, failsafe for parameters implemented
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-- 20.03.2025 / MK - Improved safty checks
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CREATE OR ALTER PROCEDURE [dbo].[PRDD_MAINTAIN_DATABASES] (
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@pCHECKDB BIT = 1, -- Set to 1 to make a check of the database before shrinking incl. soft repair function. Otherwise set to 0.
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@ -61,9 +65,10 @@ BEGIN
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@DBName NVARCHAR(100),
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@DBNameCount INT,
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@LogFileName NVARCHAR(100),
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@CurrentLogFileSizeMB INT,
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@MinimumLogFileSizeMB INT,
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@TargetLogFileSizeMB INT,
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@CurrentLogFileSizeInMB INT,
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@MinimumLogFileSizeInMB INT,
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@MaximumLogFileSizeInMB INT,
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@TargetLogFileSizeInMB INT,
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@ProductVersion sql_variant,
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@ProductMainVersion INT,
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@ProductLevel sql_variant,
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@ -160,14 +165,14 @@ BEGIN
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IF (@INCLUDEDB is not NULL) BEGIN
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INSERT INTO #DBList(DBName)
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SELECT [name] as 'DBName'
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FROM [master].[sys].[databases]
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FROM [master].[sys].[databases] (NOLOCK)
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WHERE [name] IN (SELECT [value] FROM STRING_SPLIT(@INCLUDEDB, ',')) -- include these databases
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AND [state] = 0 -- database is online
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AND [is_in_standby] = 0; -- database is not read only for log shipping
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END; ELSE BEGIN
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INSERT INTO #DBList(DBName)
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SELECT [name] as 'DBName'
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FROM [master].[sys].[databases]
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FROM [master].[sys].[databases] (NOLOCK)
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WHERE [name] NOT IN (SELECT [value] FROM STRING_SPLIT(@EXCLUDEDB, ',')) -- exclude these databases
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AND [state] = 0 -- database is online
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AND [is_in_standby] = 0; -- database is not read only for log shipping
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@ -178,7 +183,7 @@ BEGIN
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PRINT 'Because of the SQL Version only one DB can be processed!'
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INSERT INTO #DBList(DBName)
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SELECT [name] as 'DBName'
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FROM [master].[sys].[databases]
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FROM [master].[sys].[databases] (NOLOCK)
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WHERE [name] = @INCLUDEDB -- use only this database
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AND [state] = 0 -- database is online
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AND [is_in_standby] = 0; -- database is not read only for log shipping
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@ -327,10 +332,16 @@ BEGIN
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IF (@FORCE = 1) BEGIN
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PRINT 'Check the database for consistency and health and try soft repair.';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC CHECKDB ([' + @DBName + '], REPAIR_REBUILD) WITH NO_INFOMSGS, ALL_ERRORMSGS';
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SET @SQLCommand = N'USE [' + @DBName + '];
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ALTER DATABASE [' + @DBName + '] SET RECOVERY SIMPLE;
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DBCC CHECKDB ([' + @DBName + '],REPAIR_REBUILD) WITH NO_INFOMSGS, ALL_ERRORMSGS;
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ALTER DATABASE [' + @DBName + '] SET RECOVERY FULL;';
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END; ELSE BEGIN
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PRINT 'Check the database for consistency and health.';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC CHECKDB ([' + @DBName + ']) WITH NO_INFOMSGS, ALL_ERRORMSGS';
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SET @SQLCommand = N'USE [' + @DBName + '];
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ALTER DATABASE [' + @DBName + '] SET RECOVERY SIMPLE;
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DBCC CHECKDB ([' + @DBName + ']) WITH NO_INFOMSGS, ALL_ERRORMSGS;
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ALTER DATABASE [' + @DBName + '] SET RECOVERY FULL;';
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END;
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EXEC @return_status = sp_executesql @SQLCommand;
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@ -365,11 +376,11 @@ BEGIN
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--===========================================-- Get infos about the log file --============================================--
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PRINT 'Get the current and minimum size of the log file in MB.';
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SET @SQLCommand = N'SELECT TOP 1 @LogFileName = [name], @CurrentLogFileSizeMB = ([size] / 128), @MinimumLogFileSizeMB = ([growth] * 8)
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FROM [master].[sys].[master_files]
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WHERE [database_id] = DB_ID(''' + @DBName + ''') AND [type_desc] = ''LOG''';
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EXEC @return_status = sp_executesql @SQLCommand, N'@LogFileName VARCHAR(100) OUTPUT, @CurrentLogFileSizeMB INT OUTPUT, @MinimumLogFileSizeMB INT OUTPUT',
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@LogFileName OUTPUT, @CurrentLogFileSizeMB OUTPUT, @MinimumLogFileSizeMB OUTPUT;
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SET @SQLCommand = N'SELECT TOP 1 @LogFileName = [name], @CurrentLogFileSizeInMB = ([size] / 128), @MinimumLogFileSizeInMB = ([growth] / 128), @MaximumLogFileSizeInMB = ([max_size] / 128)
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FROM [master].[sys].[master_files] (NOLOCK)
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WHERE [database_id] = DB_ID(''' + @DBName + ''') AND [STATE_DESC] = ''ONLINE'' AND [type_desc] = ''LOG''';
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EXEC @return_status = sp_executesql @SQLCommand, N'@LogFileName VARCHAR(100) OUTPUT, @CurrentLogFileSizeInMB INT OUTPUT, @MinimumLogFileSizeInMB INT OUTPUT, @MaximumLogFileSizeInMB INT OUTPUT',
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@LogFileName OUTPUT, @CurrentLogFileSizeInMB OUTPUT, @MinimumLogFileSizeInMB OUTPUT, @MaximumLogFileSizeInMB OUTPUT;
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IF ((@LOGLEVEL in ('INFO')) and (@return_status = 0)) BEGIN
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SET @return_status_text = 'Getting log file settings was successfully completed!';
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@ -390,17 +401,20 @@ BEGIN
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-----------------------------------------------------------------------------------------------------------------------------
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--===========================================-- Calculate target file size --==============================================--
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PRINT 'The @CurrentLogFileSizeMB is: ' + CONVERT(VARCHAR(1000),@CurrentLogFileSizeMB);
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SET @TargetLogFileSizeMB = CASE WHEN @CurrentLogFileSizeMB * 0.1 < @MinimumLogFileSizeMB
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THEN @MinimumLogFileSizeMB
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ELSE @CurrentLogFileSizeMB * 0.1
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PRINT 'The @CurrentLogFileSizeInMB is: ' + CONVERT(VARCHAR(1000),@CurrentLogFileSizeInMB);
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PRINT 'The @MinimumLogFileSizeInMB is: ' + CONVERT(VARCHAR(1000),@MinimumLogFileSizeInMB);
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PRINT 'The @MaximumLogFileSizeInMB is: ' + CONVERT(VARCHAR(1000),@MaximumLogFileSizeInMB);
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SET @TargetLogFileSizeInMB = CASE WHEN (@MinimumLogFileSizeInMB < @CurrentLogFileSizeInMB) AND (@MinimumLogFileSizeInMB < @MaximumLogFileSizeInMB)
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THEN @MinimumLogFileSizeInMB
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ELSE @CurrentLogFileSizeInMB
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END;
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PRINT 'The @TargetLogFileSizeMB is: ' + CONVERT(VARCHAR(1000),@TargetLogFileSizeMB);
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PRINT 'The @TargetLogFileSizeInMB is: ' + CONVERT(VARCHAR(1000),@TargetLogFileSizeInMB);
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-----------------------------------------------------------------------------------------------------------------------------
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--=================================================-- Schrink db logs --===================================================--
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IF (@CurrentLogFileSizeMB > @TargetLogFileSizeMB) BEGIN
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IF (@CurrentLogFileSizeInMB > @TargetLogFileSizeInMB) BEGIN
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--=============================================-- Change db recovery mode --===============================================--
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PRINT 'Truncating the log needs to change the database recovery model to SIMPLE.';
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@ -430,13 +444,13 @@ BEGIN
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PRINT 'Shrink the truncated log file to 10% of its current size or the minimum size, whichever is larger.';
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IF (@ProductMainVersion >= 16) BEGIN
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IF (@FORCE = 1) BEGIN
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeMB AS VARCHAR) + ') WITH WAIT_AT_LOW_PRIORITY (ABORT_AFTER_WAIT = BLOCKERS), NO_INFOMSGS;';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeInMB AS VARCHAR) + ') WITH WAIT_AT_LOW_PRIORITY (ABORT_AFTER_WAIT = BLOCKERS), NO_INFOMSGS;';
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END; ELSE BEGIN
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeMB AS VARCHAR) + ') WITH WAIT_AT_LOW_PRIORITY (ABORT_AFTER_WAIT = SELF), NO_INFOMSGS;';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeInMB AS VARCHAR) + ') WITH WAIT_AT_LOW_PRIORITY (ABORT_AFTER_WAIT = SELF), NO_INFOMSGS;';
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END;
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END; ELSE BEGIN
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PRINT 'Because of the sql server version, DBCC SHRINKFILE is not applicable with the FORCE parameter!';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeMB AS VARCHAR) + ') WITH NO_INFOMSGS;';
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SET @SQLCommand = N'USE [' + @DBName + ']; DBCC SHRINKFILE (''' + @LogFileName + ''', ' + CAST(@TargetLogFileSizeInMB AS VARCHAR) + ') WITH NO_INFOMSGS;';
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END;
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EXEC @return_status = sp_executesql @SQLCommand;
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