如何获取SQL SERVER数据库中所有表的行计数
我正在search一个SQL脚本，可用于确定给定数据库的任何表中是否有任何数据（即行数）。
这个想法是重新体现数据库，以防存在任何行（在任何数据库中）。
所说的数据库是Microsoft SQL SERVER。
有人可以build议一个示例脚本？
以下SQL将为您提供数据库中所有表的行计数：
CREATE TABLE #counts ( table_name varchar(255), row_count int ) EXEC sp_MSForEachTable @command1='INSERT #counts (table_name, row_count) SELECT ''?'', COUNT(*) FROM ?' SELECT table_name, row_count FROM #counts ORDER BY table_name, row_count DESC DROP TABLE #counts 输出将是一个表和他们的行计数列表。
如果你只是想要整个数据库的总行数，追加：
SELECT SUM(row_count) AS total_row_count FROM #counts
将为您获取整个数据库中总行数的单个值。
如果您想要通过计算（*）您的300万行表格所需的时间和资源。 由Kendal Van Dyke试用这个SQL SERVER Central。
使用sysindexes进行行计数如果您使用的是SQL 2000，则需要使用sysindexes，如下所示：
-- Shows all user tables and row counts for the current database -- Remove OBJECTPROPERTY function call to include system objects SELECT o.NAME, i.rowcnt FROM sysindexes AS i INNER JOIN sysobjects AS o ON i.id = o.id WHERE i.indid < 2 AND OBJECTPROPERTY(o.id, 'IsMSShipped') = 0 ORDER BY o.NAME
如果您使用的是SQL 2005或2008，查询sysindexes仍然可以，但是Microsoftbuild议可以在将来的SQL Server版本中删除sysindexes，所以最好使用DMV，如下所示：
-- Shows all user tables and row counts for the current database -- Remove is_ms_shipped = 0 check to include system objects -- i.index_id < 2 indicates clustered index (1) or hash table (0) SELECT o.name, ddps.row_count FROM sys.indexes AS i INNER JOIN sys.objects AS o ON i.OBJECT_ID = o.OBJECT_ID INNER JOIN sys.dm_db_partition_stats AS ddps ON i.OBJECT_ID = ddps.OBJECT_ID AND i.index_id = ddps.index_id WHERE i.index_id < 2 AND o.is_ms_shipped = 0 ORDER BY o.NAME
在Azure上工作，不需要存储特效。
SELECT t.name, s.row_count from sys.tables t JOIN sys.dm_db_partition_stats s ON t.object_id = s.object_id AND t.type_desc = 'USER_TABLE' AND t.name not like '%dss%' AND s.index_id IN (0,1)
信用 。
这个看起来比我想象的要好。
USE [enter your db name here] GO SELECT SCHEMA_NAME(A.schema_id) + '.' + A.Name, SUM(B.rows) AS 'RowCount' FROM sys.objects A INNER JOIN sys.partitions B ON A.object_id = B.object_id WHERE A.type = 'U' GROUP BY A.schema_id, A.Name GO
SQL Server 2005或更高版本提供了一个相当不错的报告，显示表格的大小 – 包括行数等。它在标准报告中 – 它是表格的光盘使用情况。
以编程方式，有一个很好的解决scheme： http : //www.sqlservercentral.com/articles/T-SQL/67624/
SELECT sc.name +'.'+ ta.name TableName, SUM(pa.rows) RowCnt FROM sys.tables ta INNER JOIN sys.partitions pa ON pa.OBJECT_ID = ta.OBJECT_ID INNER JOIN sys.schemas sc ON ta.schema_id = sc.schema_id WHERE ta.is_ms_shipped = 0 AND pa.index_id IN (1,0) GROUP BY sc.name,ta.name ORDER BY SUM(pa.rows) DESC
简短而甜蜜
sp_MSForEachTable 'DECLARE @t AS VARCHAR(MAX); SELECT @t = CAST(COUNT(1) as VARCHAR(MAX)) + CHAR(9) + CHAR(9) + ''?'' FROM ? ; PRINT @t'
输出：
不要使用SELECT COUNT(*) FROM TABLENAME ，因为这是一个资源密集型操作。 应该使用SQL Serverdynamicpipe理视图或系统目录来获取数据库中所有表的行计数信息。
我会对弗雷德里克的解决scheme做一点小改动。 我将使用sp_spaceused系统存储过程，这将包括数据和索引大小。
declare c_tables cursor fast_forward for select table_name from information_schema.tables open c_tables declare @tablename varchar(255) declare @stmt nvarchar(2000) declare @rowcount int fetch next from c_tables into @tablename while @@fetch_status = 0 begin select @stmt = 'sp_spaceused ' + @tablename exec sp_executesql @stmt fetch next from c_tables into @tablename end close c_tables deallocate c_tablesdeclare c_tables cursor fast_forward for select table_name from information_schema.tables open c_tables declare @tablename varchar(255) declare @stmt nvarchar(2000) declare @rowcount int fetch next from c_tables into @tablename while @@fetch_status = 0 begin select @stmt = 'sp_spaceused ' + @tablename exec sp_executesql @stmt fetch next from c_tables into @tablename end close c_tables deallocate c_tables
从information_schema.tables视图中select所有行，并为从该视图返回的每个条目发出一个count（*）语句。
declare c_tables cursor fast_forward for select table_name from information_schema.tables open c_tables declare @tablename varchar(255) declare @stmt nvarchar(2000) declare @rowcount int fetch next from c_tables into @tablename while @@fetch_status = 0 begin select @stmt = 'select @rowcount = count(*) from ' + @tablename exec sp_executesql @stmt, N'@rowcount int output', @rowcount=@rowcount OUTPUT print N'table: ' + @tablename + ' has ' + convert(nvarchar(1000),@rowcount) + ' rows' fetch next from c_tables into @tablename end close c_tables deallocate c_tables
这里有一个dynamic的SQL方法，也给你这个模式：
DECLARE @sql nvarchar(MAX) SELECT @sql = COALESCE(@sql + ' UNION ALL ', '') + 'SELECT ''' + s.name + ''' AS ''Schema'', ''' + t.name + ''' AS ''Table'', COUNT(*) AS Count FROM ' + QUOTENAME(s.name) + '.' + QUOTENAME(t.name) FROM sys.schemas s INNER JOIN sys.tables t ON t.schema_id = s.schema_id ORDER BY s.name, t.name EXEC(@sql)
如果需要的话，将其扩展为运行实例中的所有数据库（连接到sys.databases ）将是微不足道的。
这是我最喜欢的SQL 2008解决scheme，它将结果放到一个“TEST”临时表中，我可以使用它来sorting和获取我需要的结果：
SET NOCOUNT ON DBCC UPDATEUSAGE(0) DROP TABLE #t; CREATE TABLE #t ( [name] NVARCHAR(128), [rows] CHAR(11), reserved VARCHAR(18), data VARCHAR(18), index_size VARCHAR(18), unused VARCHAR(18) ) ; INSERT #t EXEC sp_msForEachTable 'EXEC sp_spaceused ''?''' SELECT * INTO TEST FROM #t; DROP TABLE #t; SELECT name, [rows], reserved, data, index_size, unused FROM TEST \ WHERE ([rows] > 0) AND (name LIKE 'XXX%')
SELECT SUM(sdmvPTNS.row_count) AS [DBRows] FROM sys.objects AS sOBJ INNER JOIN sys.dm_db_partition_stats AS sdmvPTNS ON sOBJ.object_id = sdmvPTNS.object_id WHERE sOBJ.type = 'U' AND sOBJ.is_ms_shipped = 0 AND sdmvPTNS.index_id < 2 GO
