sql server - 查询表结构

 方式一：显示多种信息

 sp_help table_name

 方式二：只显示字段

 sp_columns table_name

 方式三：自定义

SELECT       
    SO.name 表名,  
    SC.name 表列名,  
    SC.colid 索引,  
    ST.name 类型  
FROM         
    sysobjects   SO, -- 对象表  
    syscolumns   SC, -- 列名表  
    systypes     ST  -- 数据类型表   
WHERE          
    SO.id = SC.id   
   AND   SO.xtype = 'U'                   -- 类型U表示表，V表示视图  
   AND   SO.status >= 0                  -- status >= 0 为非系统对象  
   AND   SC.xtype = ST.xusertype  
   AND   SO.name = 'table_name'  -- 某张特定表  
ORDER BY    
    SO.name, SC.colorder         -- 按表名、列名排序 

　　如果要查看视图信息，只需要将SO.xtype = 'U'该为SO.xtype = 'V' 即可。

 方式四：自定义

 

SELECT a.name AS 字段名
	, CASE 
		WHEN (
			SELECT COUNT(*)
			FROM sysobjects
			WHERE name IN (
					SELECT name
					FROM sysindexes
					WHERE id = a.id
						AND indid IN (
							SELECT indid
							FROM sysindexkeys
							WHERE id = a.id
								AND colid IN (
									SELECT colid
									FROM syscolumns
									WHERE id = a.id
										AND name = a.name
								)
						)
				)
				AND xtype = 'PK'
		) > 0 THEN '√'
		ELSE ''
	END AS 主键, b.name AS 类型
	, CASE 
		WHEN a.isnullable = 0 THEN '√'
		ELSE ''
	END AS 必填
	, isnull(g.[value], '') AS 字段描述
FROM syscolumns a
	LEFT JOIN systypes b ON a.xtype = b.xusertype
	INNER JOIN sysobjects d
	ON a.id = d.id
		AND d.xtype = 'U'
		AND d.name <> 'dtproperties'
	LEFT JOIN syscomments e on a.cdefault=e.id  

 left join sys.extended_properties g  
 on a.id=g.major_id AND a.colid= g.minor_id   
 where d.name='MP_GuaranteeMoneyApply'--所要查询的表 
 order by a.id,a.colorder

--方式4：

SELECT a.name AS 字段名, b.name AS 类型, a.length, CASE
        WHEN a.isnullable = 0 THEN '√'
        ELSE ''
    END AS 必填
    , CASE
        WHEN (
            SELECT COUNT(*)
            FROM sysobjects
            WHERE name IN (
                    SELECT name
                    FROM sysindexes
                    WHERE id = a.id
                        AND indid IN (
                            SELECT indid
                            FROM sysindexkeys
                            WHERE id = a.id
                                AND colid IN (
                                    SELECT colid
                                    FROM syscolumns
                                    WHERE id = a.id
                                        AND name = a.name
                                )
                        )
                )
                AND xtype = 'PK'
        ) > 0 THEN '√'
        ELSE ''
    END AS 主键
    , isnull(g.[value], '') AS 字段描述
FROM syscolumns a
    LEFT JOIN systypes b ON a.xtype = b.xusertype
    INNER JOIN sysobjects d
    ON a.id = d.id
        AND d.xtype = 'U'
        AND d.name <> 'dtproperties'
    LEFT JOIN syscomments e on a.cdefault=e.id 
 
 left join sys.extended_properties g 
 on a.id=g.major_id AND a.colid= g.minor_id  
 where d.name='MP_SP_TP_ApproveAgeing'--所要查询的表
 order by a.id,a.colorder