windchill 中使用sql查询部件的软属性

今天有一个需求，需要使用一条sql来根据编码查询部件的实数/字符串类型软属性，由于sql语法中，针对不同类型的返回值集合是无法合并的，因此使用了to_char(12)函数来转换类型，并合并集合。以下语句在windchill10.0M030中测试通过。

select 
  p.ida2a2, m.wtpartnumber,m.name,p.versionida2versioninfo as ver,p.iterationida2iterationinfo as iter, p.ida3view as views,ff.name as attr_name,to_char(fv.value) as attr_value
from 
wcadmin.wtpart p,
wcadmin.wtpartmaster m,
wcadmin.floatdefinition ff,
wcadmin.floatvalue fv
where 
    p.ida3masterreference = m.ida2a2
and p.latestiterationinfo = 1
and m.wtpartnumber = '5674029901'
and fv.ida3a6 = ff.ida2a2
and fv.ida3a4 = p.ida2a2
union
select 
  p.ida2a2, m.wtpartnumber,m.name,p.versionida2versioninfo as ver,p.iterationida2iterationinfo as iter, p.ida3view as views,sf.name as attr_name,sv.value as attr_value
from 
wcadmin.stringdefinition sf,
wcadmin.stringvalue sv,
wcadmin.wtpart p,
wcadmin.wtpartmaster m
where 
  p.ida3masterreference = m.ida2a2
and p.latestiterationinfo = 1
and m.wtpartnumber = '5674029901'
and sv.ida3a6 = sf.ida2a2
and sv.ida3a4 = p.ida2a2

由于是根据编码来查询，因此会有版本，视图等信息，因此这些值也需要返回。