我有以下条件查询:
String cat = "H";
Criteria criteria = currentSession().createCriteria(this.getPersistentClass()).
add(Restrictions.ne("category", cat)).
createAlias("employees", "emp").
createAlias("emp.company", "company");
Disjunction disjunction = Restrictions.disjunction();
for(Region r: regions){
disjunction.add(Restrictions.eq("company.region", r));
}
criteria.add(disjunction);
if(status != null) {
criteria.add(Restrictions.eq("status", status));
}
if (period != null) {
criteria.add(Restrictions.eq("period", period));
}
criteria.setProjection(Projections.groupProperty("id")) //this line was added to try to "fix" the error, but it still happened.
criteria.addOrder(Order.asc("id"));
我猜一个解释我的标准查询的查询可能是:
select n.* from NOMINATION n
join NOMINEE i on n.NOM_ID = i.NOM_ID
join EMPLOYEE e on e.EMP_ID = i.EMP_ID
join COMPANY c on c.COMPANY_CODE = e.COMPANY_CODE
where n.CATEGORY_CODE!='H' and (c.REGION_ID = ? or c.REGION_ID = ? or c.REGION_ID = ?) and n.STATUS_ID = ? and n.PERIOD_ID = ?
order by n.NOM_ID
我在这里尝试做的事情非常令人困惑,但大多数情况下它都有效,除非我添加此特定行(尽管查询工作正常):
criteria.addOrder(Order.asc("id"));
然后我收到错误:
java.sql.SQLException: Column "NOMINATION.NOM_ID" is invalid in the ORDER BY clause because it is not contained in either an aggregate function or the GROUP BY clause.
我怀疑这与SQL-SERVER有关。我已经按id
进行分组了。那我在这里做错了什么,或者我应该只使用HQL?
答案 0 :(得分:1)
您当前的查询似乎是一个简单的查询,它没有使用任何组函数,也没有按查询分组。根据您当前的要求,您不必使用此行。
criteria.setProjection(Projections.groupProperty("id")).addOrder(Order.asc("id"));
或者你必须修改你的sql语句。