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  • 部落首页 > 数 据 库 > MsSQL > 正文
  • Sql Server查询字段的详细信息
      2007-12-6  来源:博客网  编辑:Jsbulo  热度:

    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