use ReportServer--数据库名称
go  
DECLARE @TableName varchar(255);
  CREATE TABLE #GetRecordingTempTable([id] [INT] IDENTITY(1,1) NOT NULL, [TableName] varchar(255) NOT NULL, [RecordingCount] INT);
  DECLARE Table_Cursor CURSOR FOR SELECT [name] FROM sysobjects WHERE xtype='U';
  OPEN Table_Cursor;
  FETCH NEXT FROM Table_Cursor INTO @TableName;
  WHILE(@@FETCH_STATUS=0)
  BEGIN
  EXEC('INSERT INTO #GetRecordingTempTable ([TableName],[RecordingCount]) SELECT '''+@TableName+''', COUNT(0) FROM ['+@TableName+'];');
  FETCH NEXT FROM   Table_Cursor INTO @TableName;
 END
 CLOSE Table_Cursor;
 DEALLOCATE Table_Cursor;
 SELECT [TableName] AS [表名称],[RecordingCount] AS [总记录数] FROM #GetRecordingTempTable ORDER BY [RecordingCount] DESC;
 DROP TABLE #GetRecordingTempTable;
 GO

--或者

select  as 表名,max(b.rows) as 记录条数 from sysobjects as a, sysindexes as b
where = and a.xtype ='u'
group by 
order by max(b.rows) desc;