windchill 中使用sql查詢部件的軟屬性

今天有一個需求，需要使用一條sql來根據編碼查詢部件的實數/字符串類型軟屬性，由於sql語法中，針對不同類型的返回值集合是無法合併的，因此使用了to_char(12)函數來轉換類型，併合並集合。以下語句在windchill10.0M030中測試通過。

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

由於是根據編碼來查詢，因此會有版本，視圖等信息，因此這些值也需要返回。