sqlserver常用sql

查询某个schema下所有表：

select * from schema..sysobjects where xtype='U'

若表明为数字等特殊表名，可以加[ ]：

select * from shema..[1001]

查询某个shema下所有表的行数：

SELECT a.name, b.rows
FROM schema..sysobjects AS a INNER JOIN schema..sysindexes AS b ON a.id = b.id
WHERE (a.xtype = 'U') AND (b.indid IN (0, 1))
ORDER BY a.name,b.rows DESC

查询某个shema下所有表名和空间使用情况以及行数：

select
object_name(id) tablename,
8*reserved/1024 reserved,
rtrim(8*dpages)+'kb' used,
8*(reserved-dpages)/1024 unused,
8*dpages/1024-rows/1024*minlen/1024 free,
rows
from sysindexes
where indid=1
order by tablename,reserved desc