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Subquery in FROM clause using CriteriaQuery
I need to implement select from a nested query, for the sake of simplicity let it be:
select * from (select * from city) c
How can this be done using CriteriaQuery and Subquery?
jpa spring-data-jpa criteria-api
edited Nov 20 '18 at 11:13
JustLearning
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
add a comment |
I need to implement select from a nested query, for the sake of simplicity let it be:
select * from (select * from city) c
How can this be done using CriteriaQuery and Subquery?
jpa spring-data-jpa criteria-api
edited Nov 20 '18 at 11:13
JustLearning
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
Welcome to stackoverflow. Please read stackoverflow.com/help/how-to-ask and improve your question.
– M. Deinum
Nov 20 '18 at 11:22
add a comment |
I need to implement select from a nested query, for the sake of simplicity let it be:
select * from (select * from city) c
How can this be done using CriteriaQuery and Subquery?
jpa spring-data-jpa criteria-api
edited Nov 20 '18 at 11:13
JustLearning
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
I need to implement select from a nested query, for the sake of simplicity let it be:
select * from (select * from city) c
How can this be done using CriteriaQuery and Subquery?
jpa spring-data-jpa criteria-api
jpa spring-data-jpa criteria-api
edited Nov 20 '18 at 11:13
JustLearning
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
edited Nov 20 '18 at 11:13
JustLearning
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
edited Nov 20 '18 at 11:13
JustLearning
99521635
edited Nov 20 '18 at 11:13
JustLearning
99521635
edited Nov 20 '18 at 11:13
JustLearning
99521635
99521635
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
asked Nov 20 '18 at 10:50
chekhovanachekhovana
161
161
Welcome to stackoverflow. Please read stackoverflow.com/help/how-to-ask and improve your question.
– M. Deinum
Nov 20 '18 at 11:22
add a comment |
Welcome to stackoverflow. Please read stackoverflow.com/help/how-to-ask and improve your question.
– M. Deinum
Nov 20 '18 at 11:22
Welcome to stackoverflow. Please read stackoverflow.com/help/how-to-ask and improve your question.
– M. Deinum
Nov 20 '18 at 11:22
Welcome to stackoverflow. Please read stackoverflow.com/help/how-to-ask and improve your question.
– M. Deinum
Nov 20 '18 at 11:22
add a comment |
2 Answers
2
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oldest
votes
You can't because (select * from city) is not an entity and CritieriaAPI queries on entities not on tables.
The only way would be to create a view for (select * from city) and map that view to an entity.
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
add a comment |
First, your syntax is not JPA compliant as mentioned previously, secondly, you must know that subqueries in JPQL are allowed only in WHERE and HAVING clauses. The same applies to Criteria queries. If you need the more powerful SQL subquery features then with JPA you have to use JPA provisions for native queries, or otherwise, use another type of JDBC library.
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can't because (select * from city) is not an entity and CritieriaAPI queries on entities not on tables.
The only way would be to create a view for (select * from city) and map that view to an entity.
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
add a comment |
You can't because (select * from city) is not an entity and CritieriaAPI queries on entities not on tables.
The only way would be to create a view for (select * from city) and map that view to an entity.
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
add a comment |
You can't because (select * from city) is not an entity and CritieriaAPI queries on entities not on tables.
The only way would be to create a view for (select * from city) and map that view to an entity.
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
You can't because (select * from city) is not an entity and CritieriaAPI queries on entities not on tables.
The only way would be to create a view for (select * from city) and map that view to an entity.
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
answered Nov 20 '18 at 11:19
Simon MartinelliSimon Martinelli
5,85111230
5,85111230
add a comment |
add a comment |
First, your syntax is not JPA compliant as mentioned previously, secondly, you must know that subqueries in JPQL are allowed only in WHERE and HAVING clauses. The same applies to Criteria queries. If you need the more powerful SQL subquery features then with JPA you have to use JPA provisions for native queries, or otherwise, use another type of JDBC library.
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
add a comment |
First, your syntax is not JPA compliant as mentioned previously, secondly, you must know that subqueries in JPQL are allowed only in WHERE and HAVING clauses. The same applies to Criteria queries. If you need the more powerful SQL subquery features then with JPA you have to use JPA provisions for native queries, or otherwise, use another type of JDBC library.
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
add a comment |
First, your syntax is not JPA compliant as mentioned previously, secondly, you must know that subqueries in JPQL are allowed only in WHERE and HAVING clauses. The same applies to Criteria queries. If you need the more powerful SQL subquery features then with JPA you have to use JPA provisions for native queries, or otherwise, use another type of JDBC library.
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
First, your syntax is not JPA compliant as mentioned previously, secondly, you must know that subqueries in JPQL are allowed only in WHERE and HAVING clauses. The same applies to Criteria queries. If you need the more powerful SQL subquery features then with JPA you have to use JPA provisions for native queries, or otherwise, use another type of JDBC library.
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
edited Nov 20 '18 at 14:12
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
answered Nov 20 '18 at 13:57
garfieldgarfield
452612
452612
add a comment |
add a comment |
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– M. Deinum
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