Question

I have 3 tables in my database, for example with such names:

TableA, TableB, Table_A_B

In my mapping file for TableA I have this:

<set name="tableBSet" table="Table_A_B" cascade="all" fetch="select" lazy="true">
<key column="tableAId"/>
<many-to-many column="junctionId" class="..."/>
</set>

How can I with HQL select only those records, which tableBSet is NOT empty or NOT null?

Answer 1

can you provide more mapping or structure ? as far as what you’ve written , i suggest u want the A’s that dont have an empty or null B. so i would say

select ab.a 
from tableAB ab 
where (ab.b not null || ab.b not empty)

as a pseudo