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  • SQLSERVER如何获取一个数据库中的所有表的名称、一个表中所有字段的名称

    如何获取一个数据库中的所有表的名称、一个表中所有字段的名称?
    
    1、如何用SQL获取一个数据库中的所有表的名称;
    2、如何用SQL获取一个表中所有字段的名称;
    !
    good2speed(Goodspeed) 于 2005-5-19 11:56:43
    
    1、如何用SQL获取一个数据库中的所有表的名称;
    SELECT * FROM sysobjects
    WHERE xtype='u'
    
    2、如何用SQL获取一个表中所有字段的名称;
    SELECT c.name,o.name FROM syscolumns AS c
    INNER JOIN sysobjects AS o
    ON c.id = o.id
    pbsql(风云) 于 2005-5-19 11:56:59
    
    select name from sysobjects where xtype='U'
    select name from syscolumns where id=object_id(N'表明')
    paoluo(一天到晚游泳的鱼) 于 2005-5-19 11:59:42
    
    
    Select Name from sysobjects where Type='U'
    Select Name from syscolumns where ID=OBJECT_ID(N'TableName') Order By ColID
    mengzulin(Julian) 于 2005-5-19 12:02:14
    
    SELECT dbo.sysobjects.name AS [table], dbo.syscolumns.name AS columns
    FROM dbo.sysobjects INNER JOIN
    dbo.syscolumns ON dbo.sysobjects.id = dbo.syscolumns.id
    WHERE (dbo.sysobjects.xtype = 'u')
    dazhu2(边城浪子【倚天不出,谁与争锋】) 于 2005-5-19 12:12:11
    
    学习
    huangdun(惇惇) 于 2005-5-19 12:18:27
    
    select name from sysobjects where xtype='U'
    select name from syscolumns where id=object_id(N'name')
    good2speed(Goodspeed) 于 2005-5-19 12:20:35
    
    1、如何用SQL获取一个数据库中的所有表的名称;
    SELECT * FROM sysobjects
    WHERE xtype='u'
    
    2、如何用SQL获取一个表中所有字段的名称;
    SELECT c.name,o.name FROM syscolumns AS c
    INNER JOIN sysobjects AS o
    ON c.id = o.id
    xluzhong(Ralph) 于 2005-5-19 12:48:03
    
    --查询表结构信息
    --邹老大的
    SELECT 
    表名=case when a.colorder=1 then d.name else '' end,
    表说明=case when a.colorder=1 then isnull(f.value,'') else '' end,
    字段序号=a.colorder,
    字段名=a.name,
    标识=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
    主键=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
    SELECT name FROM sysindexes WHERE indid in(
    SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
    ))) then '√' else '' end,
    类型=b.name,
    占用字节数=a.length,
    长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
    小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
    允许空=case when a.isnullable=1 then '√'else '' end,
    默认值=isnull(e.text,''),
    字段说明=isnull(g.[value],'')
    FROM syscolumns a
    left join systypes b on a.xusertype=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 sysproperties g on a.id=g.id and a.colid=g.smallid 
    left join sysproperties f on d.id=f.id and f.smallid=0
    --where d.name='要查询的表' --如果只查询指定表,加上此条件
    order by a.id,a.colorder
    
    先创建一个视图
    Create view fielddesc 
    as
    select o.name as table_name,c.name as field_name,t.name as type,c.length as
    length,c.isnullable as isnullable,convert(varchar(30),p.value) as desp 
    from syscolumns c 
    join systypes t on c.xtype = t.xusertype
    join sysobjects o on o.id=c.id 
    left join sysproperties p on p.smallid=c.colid and p.id=o.id 
    where o.xtype='U'
    查询时:
    Select * from fielddesc where table_name = '你的表名'
    还有个更强的语句,是邹建写的,也写出来吧
    SELECT 
    (case when a.colorder=1 then d.name else ' end) N'表名',
    a.colorder N'字段序号',
    a.name N'字段名',
    (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else ' end) N'标识',
    (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) N'主键',
    b.name N'类型',
    a.length N'占用字节数',
    COLUMNPROPERTY(a.id,a.name,'PRECISION') as N'长度',
    isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as N'小数位数',
    (case when a.isnullable=1 then '√'else ' end) N'允许空',
    isnull(e.text,') N'默认值',
    isnull(g.[value],') AS N'字段说明'
    --into ##tx
    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 sysproperties g
    on a.id=g.id AND a.colid = g.smallid 
    order by object_name(a.id),a.colorder
    

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  • 原文地址:https://www.cnblogs.com/xiaofengfeng/p/2222547.html
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