sql server Sql 語句查看表結構

--快速查看表對的就說明，及表字段描述及字段類型
--表描述  
SELECT tbs.name 表名,ds.value 描述   
FROM sys.extended_properties ds  
LEFT JOIN sysobjects tbs ON ds.major_id=tbs.id  
WHERE  ds.minor_id=0 and  
 tbs.name='Warrant_BaseInfo';--表名  
  
--快速查看表結構  
SELECT  CASE WHEN col.colorder = 1 THEN obj.name  
                  ELSE ''  
             END AS 表名,  
        col.colorder AS 序號 ,  
        col.name AS 列名 ,  
        ISNULL(ep.[value], '') AS 列說明 ,  
        t.name AS 數據類型 ,  
        col.length AS 長度 ,  
        ISNULL(COLUMNPROPERTY(col.id, col.name, 'Scale'), 0) AS 小數位數 ,  
        CASE WHEN COLUMNPROPERTY(col.id, col.name, 'IsIdentity') = 1 THEN '√'  
             ELSE ''  
        END AS 標識 ,  
        CASE WHEN EXISTS ( SELECT   1  
                           FROM     dbo.sysindexes si  
                                    INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id  
                                                              AND si.indid = sik.indid  
                                    INNER JOIN dbo.syscolumns sc ON sc.id = sik.id  
                                                              AND sc.colid = sik.colid  
                                    INNER JOIN dbo.sysobjects so ON so.name = si.name  
                                                              AND so.xtype = 'PK'  
                           WHERE    sc.id = col.id  
                                    AND sc.colid = col.colid ) THEN '√'  
             ELSE ''  
        END AS 主鍵 ,  
        CASE WHEN col.isnullable = 1 THEN '√'  
             ELSE ''  
        END AS 允許空 ,  
        ISNULL(comm.text, '') AS 默認值  
FROM    dbo.syscolumns col  
        LEFT  JOIN dbo.systypes t ON col.xtype = t.xusertype  
        inner JOIN dbo.sysobjects obj ON col.id = obj.id  
                                         AND obj.xtype = 'U'  
                                         AND obj.status >= 0  
        LEFT  JOIN dbo.syscomments comm ON col.cdefault = comm.id  
        LEFT  JOIN sys.extended_properties ep ON col.id = ep.major_id  
                                                      AND col.colid = ep.minor_id  
                                                      AND ep.name = 'MS_Description'  
        LEFT  JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id  
                                                         AND epTwo.minor_id = 0  
                                                         AND epTwo.name = 'MS_Description'  
WHERE   obj.name = 'Ath_LoanApply_tbl'--表名  
ORDER BY col.colorder ;

--1：獲取當前數據庫中的所有用戶表

select Name from sysobjects where xtype='u' and status>=0

--2：獲取某一個表的所有字段

select name from syscolumns where id=object_id('表名')

--3：查看與某一個表相關的視圖、存儲過程、函數

select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%'

--4：查看當前數據庫中所有存儲過程

select name as 存儲過程名稱 from sysobjects where xtype='P'

--5：查詢用戶創建的所有數據庫

select * from master..sysdatabases D where sid not in(select sid from master..syslogins where name='sa')

或者

select dbid, name AS DB_NAME from master..sysdatabases where sid <> 0x01

--6：查詢某一個表的字段和數據類型

select column_name,data_type from information_schema.columns
where table_name = '表名'

--7:取得表字段的描述
select name,
(select value from sysproperties where id = syscolumns.id and smallid=syscolumns.colid) as 描述
from syscolumns where id=object_id('表名')