如何在Sybase ASE上获取用户定义的数据类型列表？

Question

我使用以下查询来获取用户定义的数据类型(UDDT)列表:

SELECT USER_NAME(S.uid) as owner, S.name as Name, T.name as datatypename, 
         OBJECT_NAME(S.domain), OBJECT_NAME(S.tdefault) 
FROM systypes S,systypes T 
WHERE S.type=T.type AND T.usertype<100 AND T.usertype NOT IN(18,24,25,80) AND S.usertype>100  
ORDER BY 1, 2

在Sybase 12.5上,它用于返回每个UDDT返回一行.现在使用Sybase 15.x,它返回2行:

owner   Name    datatypename 
'dbo'  'auid'  'varchar'
'dbo'  'auid'  'longsysname'

实际上是UDDT的数据类型varchar.我不确定它的longsysname来源.返回在12.5.x和15.x ASE数据库中都有效的UDDT列表的正确方法是什么？

Answer 1

试试这段代码:

select s1.name, 
        (select name 
         from systypes s2 
         where s2.usertype=(
                            select min( s3.usertype) 
                            from systypes s3 
                            where  s3.hierarchy=s1.hierarchy)
        ) base_type,  USER_NAME(s1.uid) as owner
    from systypes s1
    WHERE s1.usertype>100