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105 lines
2.7 KiB
105 lines
2.7 KiB
USE [FastMoneyPro_Remit]
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GO
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/****** Object: StoredProcedure [dbo].[Proc_IndexRebuild] Script Date: 7/4/2019 11:35:48 AM ******/
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DROP PROCEDURE [dbo].[Proc_IndexRebuild]
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GO
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/****** Object: StoredProcedure [dbo].[Proc_IndexRebuild] Script Date: 7/4/2019 11:35:48 AM ******/
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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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GO
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CREATE PROC [dbo].[Proc_IndexRebuild]
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@dbname varchar(200)=null
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AS
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BEGIN
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-- Ensure a USE <databasename> statement has been executed first.
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SET NOCOUNT ON;
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DECLARE @objectid int;
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DECLARE @indexid int;
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DECLARE @partitioncount bigint;
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DECLARE @schemaname nvarchar(130);
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DECLARE @objectname nvarchar(130);
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DECLARE @indexname nvarchar(130);
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DECLARE @partitionnum bigint;
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DECLARE @partitions bigint;
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DECLARE @frag float;
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DECLARE @command nvarchar(4000);
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-- Conditionally select tables and indexes from the sys.dm_db_index_physical_stats function
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-- and convert object and index IDs to names.
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SELECT
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object_id AS objectid,
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index_id AS indexid,
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partition_number AS partitionnum,
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avg_fragmentation_in_percent AS frag
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INTO #work_to_do
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FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL , NULL, 'LIMITED')
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WHERE avg_fragmentation_in_percent > 10.0
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AND index_id > 0;
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--select * from #work_to_do
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-- Declare the cursor for the list of partitions to be processed.
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DECLARE partitions CURSOR FOR SELECT * FROM #work_to_do;
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-- Open the cursor.
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OPEN partitions;
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-- Loop through the partitions.
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WHILE (1=1)
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BEGIN;
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FETCH NEXT
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FROM partitions
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INTO @objectid, @indexid, @partitionnum, @frag;
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IF @@FETCH_STATUS < 0 BREAK;
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SELECT @objectname = QUOTENAME(o.name), @schemaname = QUOTENAME(s.name)
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FROM sys.objects AS o
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JOIN sys.schemas as s ON s.schema_id = o.schema_id
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WHERE o.object_id = @objectid;
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SELECT @indexname = QUOTENAME(name)
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FROM sys.indexes
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WHERE object_id = @objectid AND index_id = @indexid;
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SELECT @partitioncount = count (*)
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FROM sys.partitions
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WHERE object_id = @objectid AND index_id = @indexid;
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-- 30 is an arbitrary decision point at which to switch between reorganizing and rebuilding.
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IF @frag < 30.0
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SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REORGANIZE';
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IF @frag >= 30.0
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SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REBUILD WITH (MAXDOP=1)';
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IF @partitioncount > 1
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SET @command = @command + N' PARTITION=' + CAST(@partitionnum AS nvarchar(10));
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EXEC (@command);
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PRINT N'Executed: ' + @command;
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END;
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-- Close and deallocate the cursor.
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CLOSE partitions;
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DEALLOCATE partitions;
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-- Drop the temporary table.
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DROP TABLE #work_to_do;
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END
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GO
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