sqlserver 数据字典查询

概述-- 数据字典 SELECT         (case when a.colorder=1 then d.name else '' end)表名,         a.colorder 字段序号,         a.name 字段名,         (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' e

-- 数据字典

SELECT

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

        a.colorder 字段序号,

        a.name 字段名,

        (case when ColUMNPROPERTY( a.ID,a.name,'IsIDentity')=1 then '√'else '' end) 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) 主键,

       b.name 类型,

       a.length 占用字节数,

      ColUMNPROPERTY(a.ID,'PRECISION') as 长度,

      isnull(ColUMNPROPERTY(a.ID,'Scale'),0) as 小数位数,

      (case when a.isnullable=1 then '√'else '' end) 允许空,

      isnull(e.text,'') 默认值,

      isnull(g.[value],'') AS 字段说明

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.major_ID

order by a.ID,a.colorder

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