在休眠「情況下......然後......其他......結束」時可以使用「和」？

Question

我有以下查詢：

select myentity from TEST as test 
left join test.org.parent as parentOrg 
left join test.clientRequest as clientReq 
where test.customId = 1 and (test.dstatus = 1 or test.cm = true) 
order by (case when test.request != '' then test.request else clientReq.name end) asc; 

它正常工作。但我不僅需要clientReq.name，還需要clientReq.surname。在這個case when...then...else...end中可以組合這兩列嗎？

喜歡的東西：

order by (case when test.request != '' then test.request else (clientReq.name and clientReq.surname) end) asc; 

這一次拋出異常：

org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected AST node 

Answer 1

既然你選，我相信你的意思來連接姓名：

order by (case when test.request != '' then test.request else concat(clientReq.name,clientReq.surname) end) asc; 

見HQL Query Expressions在文檔中的更多細節。