• ms sql 获取表字段的属性


    SELECT
        表名       = case when a.colorder=1 then d.name else '' end,
       
        字段名     = a.name,
        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'),
        默认值     = isnull(e.text,'')
       
    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

    where
        d.name='TableName'    --如果只查询指定表,加上此条件

    -------------------------------------------------------------------
    SELECT

    (case when a.colorder=1 then d.name else '' end) N'Table Name',

    a.colorder N'Column SQ',

    a.name N'Column Name',

    (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) N'Idnetity FG',

    (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'PK',

    b.name N'Type',

    a.length N'Bit Length',

    COLUMNPROPERTY(a.id,a.name,'PRECISION') as N'Length',

    isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as N'DataScale',

    (case when a.isnullable=1 then '√'else '' end) N'Null',

    isnull(e.text,'') N'Default'

    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
    --where d.name = 'tablename --如果只查询指定表,加上此条件
    order by object_name(a.id),a.colorder

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  • 原文地址:https://www.cnblogs.com/jkswjw/p/1657660.html
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