SQL2005重新生成索引的的存储过程 sp（sql2000重建索引）一篇读懂


USE [master]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE proc [dbo].[sp_rebuild_index]
(
@Rebuild_Fragmentation_Percent smallint=5 — 当逻辑碎片百分比 > 5% 重新生成索引
)
as
begin

–对系统数据库不作重新组织索引和重新生成索引
if (db_name() in (‘master’,’model’,’msdb’,’tempdb’)) return;

–如果逻辑碎片（索引中的无序页）的百分比 <=5% ，就不作重新组织索引和重新生成索引
if not exists(select 1 from sys.dm_db_index_physical_stats(db_id(),null,null,null,null) a where a.index_id>0 and a.avg_fragmentation_in_percent > @Rebuild_Fragmentation_Percent) return

print replicate(‘-‘,60)+char(13)+char(10)+replicate(‘ ‘,14)+N’对数据库 ‘+quotename(db_name())+N’ 进行索引优化’+replicate(‘ ‘,20)+char(13)+char(10)

declare @sql nvarchar(2000),@str nvarchar(2000)

declare cur_x cursor for
select ‘alter index ‘+quotename(a.name)+’ on ‘+quotename(object_schema_name(a.object_id))+’.’+quotename(object_name(a.object_id))+’ rebuild;’ as [sql]
,N’重新生成索引：’ +quotename(object_schema_name(a.object_id))+’.’+quotename(object_name(a.object_id))+’.’+quotename(a.name) as [str]
from sys.indexes a
inner join sys.dm_db_index_physical_stats(db_id(),null,null,null,null) b on b.object_id=a.object_id
and b.index_id=a.index_id
where a.index_id>0
and b.avg_fragmentation_in_percent > @Rebuild_Fragmentation_Percent
order by object_name(a.object_id),a.index_id

open cur_x
fetch next from cur_x into @sql,@str

while (@@fetch_status=0)
begin
print @sql
exec(@sql)

print @str
fetch next from cur_x into @sql,@str

end
close cur_x
deallocate cur_x

end