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以下为引用的内容：
SELECT SysObjects.Name as tb_name, SysColumns.Name as col_name,
SysTypes.Name as col_type, SysColumns.Length as col_len, isnull
(SysProperties.Value,SysColumns.Name) as col_memo,
case when SysColumns.name in
(select 主键=a.name
FROM syscolumns a
inner join sysobjects b on a.id=b.id and
b.xtype='U' and b.name<>'dtproperties'
where exists(SELECT 1 FROM sysobjects where xtype='PK' and name in (
SELECT name FROM sysindexes WHERE indid in(
SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
)))
and b.name=SysObjects.Name
)
then 1 else 0 end as is_key
FROM SysObjects,SysTypes,SysColumns
LEFT JOIN SysProperties ON (Syscolumns.Id = Sysproperties.Id AND
Syscolumns.Colid = Sysproperties.Smallid)
WHERE (Sysobjects.Xtype ='u' OR Sysobjects.Xtype ='v')
AND Sysobjects.Id = Syscolumns.Id AND SysTypes.XType = Syscolumns.XType
AND SysTypes.Name <> 'sysname' AND Sysobjects.
Name Like '%' ORDER By SysObjects.Name, SysColumns.colid
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