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Result Set one to many mapping
0 Answer(s)      a year and 6 months ago
Posted in : JDBC


Suppose there are 5 tables in database named A,B,C,D and E. A has one to many relationship with B,C,D and D has one to many relationship with E. Beam class of A contains array of Class B,C, and D Bean class of D contains array of Class E

Suppose my query is Select * from A a, B b , C c , D d, E e where a.id = b.id, a.id = c.id, a.id = d.id, a.id = e.id.

Suppose result contains single entry of One record for A, Two records for B , three records for C , Four records for D and two records for E.

Then how should I populate my bean classes from resultset without using hibernate, so that there will be no duplicate data present? Since There is a repetition of data hence I am not able to populate bean classes properly.Please suggest easy and convinient solution to this problem.


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