SQL Server 索引运维

Posted 2020-12-17 哦呵呵G

sql server检测库里所有表的索引碎片

 

SELECT schema_name(T.schema_id) AS Schema_Name,T.Name AS Table_Name,I.name AS Index_Name,
I.type AS Index_Type,D.avg_fragmentation_in_percent AS avg_fragmentation_in_percent 
FROM sys.dm_db_index_physical_stats(DB_id(‘DBNAME‘),null, null, null, null) AS D
INNER JOIN sys.indexes AS I WITH(NOLOCK) ON D.index_id=I.index_id AND D.object_id=I.object_id
INNER JOIN sys.tables AS T WITH(NOLOCK) ON T.object_id=D.object_id
WHERE I.type>0 AND T.is_ms_shipped=0 AND D.avg_fragmentation_in_percent>=30
order by D.avg_fragmentation_in_percent desc

 

SQL Server 重建所有表索引方法

USE My_Database;
DECLARE @name varchar(100)

DECLARE authors_cursor CURSOR FOR  
Select [name]   from sysobjects where xtype=‘u‘ order by id

OPEN authors_cursor

FETCH NEXT FROM authors_cursor  INTO @name

WHILE @@FETCH_STATUS = 0 
BEGIN    

   DBCC DBREINDEX (@name, ‘‘, 90)

   FETCH NEXT FROM authors_cursor  
   INTO @name 
END

deallocate authors_cursor