T-SQL – Find Number of Rows of Database(s) tables Using Undocumented Procedure – sp_MSforeachdb and sp_MSforeachtable

Added few more examples

Prashanth Jayaram

On Technet forum, Op was looking for a way to get table cardinality for all databases in an instance.  There are many ways to get the result. This post gives you an idea and SQL in which undocumented SP’s being called  “sp_MSforeachdb and sp_MSforeachtable”.

The above undocumented SP’s  iterate through each database and each table of a SQL instance

Download SQL :- UndocumentSPToGetNoOfRowsAllDatabases

SQL:-

CREATE TABLE  #TableRowCounts  ([databaseNAme] Varchar(100),[TableName] VARCHAR(128), [RowCount] INT) ;

EXEC sp_MSforeachdb
@command1 = 'IF not exists(select 1 where ''?'' in (''master'',''model'',''msdb'',''tempdb''))
INSERT INTO #TableRowCounts ([databaseNAme],[TableName], [RowCount])
EXEC [?].dbo.sp_MSforeachtable @command1 = ''SELECT ''''?'''',''''&'''',count(1) FROM &'',@replacechar = ''&'''

SELECT * FROM #TableRowCounts
					
DROP TABLE #TableRowCounts	

Note:-The above query is expensive. Please use at your risk

Output-

TableCount-spMSforeachdb&table

The use of IF and Like clause with sp_MSforeachtable

EXEC [sp_MSforeachtable] @command1=N'
IF (N''?'' =''[dbo].[log]'')
BEGIN
 PRINT N''?''
 SELECT COUNT(*) from ? 
END'

EXEC [sp_MSforeachtable] @command1=N' IF (N''?'' LIKE N''%Resource%]'') BEGIN PRINT N''?'' SELECT ''?'' TABLENAME,COUNT(*)…

View original post 102 more words

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About Prashanth Jayaram

DB Technologist, Author, Blogger, Operations-Mgr at CTS, Automation Expert, Technet WIKI Ninja, MVB and Powershell Geek You can connect me via https://social.technet.microsoft.com/profile/prashanth jayaram/ http://www.sqlshack.com/author/prashanth/ https://www.tumblr.com/blog/prashantjayaram http://www.sqlservercentral.com/blogs/powersql-by-prashanth-jayaram/ http://www.toadworld.com/members/prashanthjayaram/ My Articles are published in following sites http://www.ssas-info.com/analysis-services-articles/ http://db-pub.com/ http://www.sswug.org/sswugresearch/community/
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