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-

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(*)…