SQL Server 表、行空间大小统计
2016-05-06 11:24
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从某位大大那里复制回来的
CREATE TABLE #tablespaceinfo
(
nameinfo VARCHAR(500) ,
rowsinfo BIGINT ,
reserved VARCHAR(20) ,
datainfo VARCHAR(20) ,
index_size VARCHAR(20) ,
unused VARCHAR(20)
)
DECLARE @tablename VARCHAR(255);
DECLARE Info_cursor CURSOR
FOR
SELECT '[' + [name] + ']'
FROM sys.tables
WHERE type = 'U';
OPEN Info_cursor
FETCH NEXT FROM Info_cursor INTO @tablename
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO #tablespaceinfo
EXEC sp_spaceused @tablename
FETCH NEXT FROM Info_cursor
INTO @tablename
END
CLOSE Info_cursor
DEALLOCATE Info_cursor
--创建临时表
CREATE TABLE [#tmptb]
(
TableName VARCHAR(50) ,
DataInfo BIGINT ,
RowsInfo BIGINT ,
Spaceperrow AS ( CASE RowsInfo
WHEN 0 THEN 0
ELSE CAST(DataInfo AS decimal(18,2))/CAST(RowsInfo AS decimal(18,2))
END ) PERSISTED
)
--插入数据到临时表
INSERT INTO [#tmptb]
( [TableName] ,
[DataInfo] ,
[RowsInfo]
)
SELECT [nameinfo] ,
CAST(REPLACE([datainfo], 'KB', '') AS BIGINT) AS 'datainfo' ,
[rowsinfo]
FROM #tablespaceinfo
ORDER BY CAST(REPLACE(reserved, 'KB', '') AS INT) DESC
--汇总记录
SELECT [tbspinfo].* ,
[tmptb].[Spaceperrow] AS '每行记录大概占用空间(KB)'
FROM [#tablespaceinfo] AS tbspinfo ,
[#tmptb] AS tmptb
WHERE [tbspinfo].[nameinfo] = [tmptb].[TableName]
ORDER BY CAST(REPLACE([tbspinfo].[reserved], 'KB', '') AS INT) DESC
DROP TABLE [#tablespaceinfo]
DROP TABLE [#tmptb]
CREATE TABLE #tablespaceinfo
(
nameinfo VARCHAR(500) ,
rowsinfo BIGINT ,
reserved VARCHAR(20) ,
datainfo VARCHAR(20) ,
index_size VARCHAR(20) ,
unused VARCHAR(20)
)
DECLARE @tablename VARCHAR(255);
DECLARE Info_cursor CURSOR
FOR
SELECT '[' + [name] + ']'
FROM sys.tables
WHERE type = 'U';
OPEN Info_cursor
FETCH NEXT FROM Info_cursor INTO @tablename
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO #tablespaceinfo
EXEC sp_spaceused @tablename
FETCH NEXT FROM Info_cursor
INTO @tablename
END
CLOSE Info_cursor
DEALLOCATE Info_cursor
--创建临时表
CREATE TABLE [#tmptb]
(
TableName VARCHAR(50) ,
DataInfo BIGINT ,
RowsInfo BIGINT ,
Spaceperrow AS ( CASE RowsInfo
WHEN 0 THEN 0
ELSE CAST(DataInfo AS decimal(18,2))/CAST(RowsInfo AS decimal(18,2))
END ) PERSISTED
)
--插入数据到临时表
INSERT INTO [#tmptb]
( [TableName] ,
[DataInfo] ,
[RowsInfo]
)
SELECT [nameinfo] ,
CAST(REPLACE([datainfo], 'KB', '') AS BIGINT) AS 'datainfo' ,
[rowsinfo]
FROM #tablespaceinfo
ORDER BY CAST(REPLACE(reserved, 'KB', '') AS INT) DESC
--汇总记录
SELECT [tbspinfo].* ,
[tmptb].[Spaceperrow] AS '每行记录大概占用空间(KB)'
FROM [#tablespaceinfo] AS tbspinfo ,
[#tmptb] AS tmptb
WHERE [tbspinfo].[nameinfo] = [tmptb].[TableName]
ORDER BY CAST(REPLACE([tbspinfo].[reserved], 'KB', '') AS INT) DESC
DROP TABLE [#tablespaceinfo]
DROP TABLE [#tmptb]
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