I'm trying to write a query that will UPDATE a table generated in hibernate, with the result of another hibernate generated table.
I've written this query in ssms, in ssms it runs great.
UPDATE DMVOUCHER set VOUCHERPARTYID = EXTERNALID
from
(
select
EXTERNALID
,row_number() over (partition by dv.VoucherUid order by dc.PRIMARYCOMPANY desc, dc.ExternalId) row_num
,dv.VoucherUid as vUid from DMVOUCHER dv
join DMCOMPANY dc on dv.VOUCHERPARTYID = dc.REGISTRATION
where VOUCHERTYPE = 'R03') as t1
where t1.row_num = 1
and VoucherUid = vUid
and VOUCHERTYPE = 'R03'
row_num is to make it prefer the result if primaryCompany is equal to 1 (PrimaryCompany is a boolean), if that doesn't exist then it can do it based on any externalId. in my query I just prefer the lowest externalId
however the problem then comes when I'm trying to execute this in my application. here I am trying to execute the equivelant string which can be seen below:
String queryString =
"UPDATE DMVOUCHER \n"
+ "SET VOUCHERPARTYID = EXTERNALID \n"
+ "FROM ( \n"
+ " SELECT EXTERNALID \n"
+ " , row_number() over (partition by dv.VoucherUid order by dc.PRIMARYCOMPANY desc, dc.ExternalId) row_num \n"
+ " , dv.VoucherUid as vUid \n"
+ " FROM DMVOUCHER dv \n"
+ " JOIN DMCOMPANY dc ON dv.VOUCHERPARTYID = dc.REGISTRATION \n"
+ " WHERE VOUCHERTYPE = 'R03') as t1 \n"
+ "WHERE t1.row_num = 1 \n"
+ " AND VoucherUid = vUid \n"
+ " AND VOUCHERTYPE = 'R03'";
however I then end up with this error message:
2021-06-21 13:23:27.173. Error: TopDmCompanyGtiNumberEntityAfterMapper failed: QuerySyntaxException: unexpected token: FROM near line 3, column 1 [UPDATE DMVOUCHER
SET VOUCHERPARTYID = EXTERNALID
FROM (
SELECT EXTERNALID
, row_number() over (partition by dv.VoucherUid order by dc.PRIMARYCOMPANY desc, dc.ExternalId) row_num
, dv.VoucherUid as vUid
FROM DMVOUCHER dv
JOIN DMCOMPANY dc ON dv.VOUCHERPARTYID = dc.REGISTRATION
WHERE VOUCHERTYPE = 'R03') as t1
WHERE t1.row_num = 1
AND VoucherUid = vUid
AND VOUCHERTYPE = 'R03']
org.hibernate.hql.internal.ast.QuerySyntaxException.convert(QuerySyntaxException.java:74)
org.hibernate.hql.internal.ast.ErrorTracker.throwQueryException(ErrorTracker.java:93)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.parse(QueryTranslatorImpl.java:301)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:189)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144)
org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:113)
org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73)
org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162)
org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:604)
org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:716)
org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:113)
com.schantz.generallife.dm.logic.writer.DmUtil.executeQuery(DmUtil.java:16)
com.schantz.generallife.dm.logic.datamart.DatamartWriter.handleSynchronousRequest(DatamartWriter.java:211)
com.schantz.generallife.dm.logic.datamart.DatamartWriter.write(DatamartWriter.java:151)
com.schantz.generallife.dm.logic.datamart.DatamartWriter$1.execute(DatamartWriter.java:107)
com.schantz.foundation.config.hibernate.AbstractDatabaseTargetThreadLogic$DatabaseTargetThread.execute(AbstractDatabaseTargetThreadLogic.java:170)
com.schantz.foundation.config.hibernate.AbstractDatabaseTargetThreadLogic$DatabaseTargetThread.run(AbstractDatabaseTargetThreadLogic.java:159)
java.base/java.lang.Thread.run(Thread.java:834)
I've tried to look around on stackoverflow for similiar errors, however I havn't been able to identify any queries like mine. or where the problem is that the unexpected token is the FROM
I think a possible issue is that ssms uses a different sql language than my application does. I must admit I don't know the actual sql language either that my ssms uses or my application does. which also makes debugging the problem a bit harder. so if you are able to identify it based on what I've written, that information would also be appriciated.
edit following the method call where I execute my queryString, it reaches a new method which calls another method. doing that a few times I finally get this method:
public static Integer executeQuery(PersistenceManager persistenceManager, Class<? extends AbstractEntity> clazz, String queryString, Map<String, Object> parameters) {
Session session = (Session) ((PersistenceManagerImpl) persistenceManager).getTransactionalEntityManager().getDelegate();
Query<?> query = session.createQuery(queryString);
for (Entry<String, Object> entry : parameters.entrySet()) {
query.setParameter(entry.getKey(), entry.getValue());
}
return query.executeUpdate();
}
where executeUpdate() is from jakarta.persistence-api-2.2.3.jar
--edit--
I messed around a bit and tried to use the way it would written in mysql instead. therefore I now get this error message instead.
2021-06-22 11:44:10.496. Error: TopDmCompanyGtiNumberEntityAfterMapper failed: QuerySyntaxException: expecting IDENT, found '(' near line 2, column 1 [UPDATE
(SELECT EXTERNALID
, row_number() over (partition by dv.VoucherUid order by dc.PRIMARYCOMPANY desc, dc.ExternalId) row_num
, dv.VoucherUid as vUid
FROM DMVOUCHER dv
JOIN DMCOMPANY dc ON dv.VOUCHERPARTYID = dc.REGISTRATION
WHERE VOUCHERTYPE = 'R03') as t1 SET VOUCHERPARTYID = EXTERNALID
WHERE t1.row_num = 1
AND VoucherUid = vUid
AND VOUCHERTYPE = 'R03']
org.hibernate.hql.internal.ast.QuerySyntaxException.convert(QuerySyntaxException.java:74)
org.hibernate.hql.internal.ast.ErrorTracker.throwQueryException(ErrorTracker.java:93)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.parse(QueryTranslatorImpl.java:301)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:189)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144)
org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:113)
org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73)
org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162)
org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:604)
org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:716)
org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:113)
com.schantz.generallife.dm.logic.writer.DmUtil.executeQuery(DmUtil.java:16)
com.schantz.generallife.dm.logic.datamart.DatamartWriter.handleSynchronousRequest(DatamartWriter.java:211)
com.schantz.generallife.dm.logic.datamart.DatamartWriter.write(DatamartWriter.java:151)
com.schantz.generallife.dm.logic.datamart.DatamartWriter$1.execute(DatamartWriter.java:107)
com.schantz.foundation.config.hibernate.AbstractDatabaseTargetThreadLogic$DatabaseTargetThread.execute(AbstractDatabaseTargetThreadLogic.java:170)
com.schantz.foundation.config.hibernate.AbstractDatabaseTargetThreadLogic$DatabaseTargetThread.run(AbstractDatabaseTargetThreadLogic.java:159)
java.base/java.lang.Thread.run(Thread.java:834)
I believe it makes the problem a bit clearer, I need to covert my query query so its in hql instead. I will answer the post if I figure out how to do that, as I'm not so familiar with hql
the problem was indeed that the queryString was supposed to be in hql. I've rewritten the queryString so it now works, it now looks like this:
String queryString =
"UPDATE DmVoucher SET voucherPartyId = (SELECT externalId \n"
+ " FROM DmCompany dc \n"
+ " WHERE voucherType = 'R03' \n"
+ "And dc.primaryCompany = CASE WHEN (SELECT count(dcp) FROM DmCompany dcp WHERE primaryCompany = 1 and voucherPartyId = dcp.registration) > 0 THEN 1 else 0 END\n"
+ "and voucherPartyId = dc.registration)\n";
Related
Hello I have a problem with the execution of a Query inside Java using Hibernate.
When I use this Query:
Query query = dbSession.createQuery("SELECT activitydate, userid, sum(time) as homeofficeTime FROM Hours AS hours " +
"WHERE (hours.comment ILIKE ANY(ARRAY['%homeoffice%', '%home office%']) OR " +
"remark ILIKE ANY(ARRAY['%homeoffice%', '%home office%'])) AND " +
"hours.activitydate BETWEEN :from AND :to " +
"AND userid = :user " +
"GROUP BY activitydate, userid ORDER BY activitydate ");
query.setLong("user", employee.getUserid());
query.setCalendar("from", from);
query.setCalendar("to", to);
I get this Error:
org.hibernate.hql.ast.QuerySyntaxException: unexpected token: ILIKE near line 1, column 129 [SELECT activitydate, userid, sum(time) as homeofficeTime FROM com.thiesen.timesheet.sql.dbo.Hours AS hours WHERE (hours.comment ILIKE ANY(ARRAY['%homeoffice%', '%home office%']) OR remark ILIKE ANY(ARRAY['%homeoffice%', '%home office%'])) AND hours.activitydate BETWEEN :from AND :to AND userid = :user GROUP BY activitydate, userid ORDER BY activitydate ]
However when I use this Query:
Query query = dbSession.createQuery("SELECT activitydate, userid, sum(time) as homeofficeTime FROM Hours AS hours " +
"WHERE hours.comment = 'test Homeoffice tst' AND " +
"hours.activitydate BETWEEN :from AND :to " +
"AND userid = :user " +
"GROUP BY activitydate, userid ORDER BY activitydate ");
query.setLong("user", employee.getUserid());
query.setCalendar("from", from);
query.setCalendar("to", to);
It works and I get a Result back: [[Ljava.lang.Object;#7221ae50]
Both of the Query work if I test them inside Adminer and run the Querys there but for some Reason the first one wont work in my Project. Does Hibernate not know what to do with "ILIKE" or "LIKE" or the "Array[]" Part?
I am currently tryting to get an sql query that returns me the top 10 highscores of my game into a list in java.
List<Hsg_Highscore> highscoreList = sessionObj.createSQLQuery("" +
"select id, score, time_played, score_creation_date, user_id from (\n" +
"select *, min(score_creation_date) OVER (Partition by user_id) score_creation_date_user from(\n" +
"select *, min(time_played) OVER (Partition by user_id) time_played_user from\n" +
"(select id, score, time_played, score_creation_date, user_id,\n" +
"max(score) OVER (Partition by user_id) score_user\n" +
"from hsg_score\n" +
") h2\n" +
"where score_user = score\n" +
") h3\n" +
"where time_played_user = time_played\n" +
") h4\n" +
"where score_creation_date_user = score_creation_date").list()
I basically see my highscores in my list when I debug the program, these are my highscore values:
My problem is that I cant access these Values without getting following error:
java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to
de.dhbw.project.score.Hsg_Highscore
My attempt to get access to the data:
highscoreList.get(0).getScore()
Session.createSQLQuery uses real SQL instead of HQL. That means it will always return a list of Object[] instead of mapping the results to a Java class.
This question already has answers here:
Jpa namedquery with left join fetch
(2 answers)
Closed 5 years ago.
I'm using spring data JPA and I want to write a SQL query in my repository.
I have a following SQL query (notice the LEFT JOIN):
SELECT * FROM institution LEFT JOIN
(select * from building_institutions where building_institutions.building_id = 1) as reserved_institutions
ON reserved_institutions.institutions_user_id = institution.user_id
WHERE reserved_institutions.institutions_user_id is null;
and i want to execute it in my InstitutionRepository which is as follows:
#Repository
public interface InstitutionRepository extends JpaRepository<Institution, Long>, PagingAndSortingRepository<Institution,Long> {
// doesn't work
//#Query("SELECT b.institutions as bi FROM Building b left join Institution i WHERE bi.building_id not in :id")
Page<Institution> findPotentialInstitutionsByBuildingId(#Param("id") Collection<Long> id, Pageable pageable);
// doesn't work
#Query(
value = "SELECT * FROM kits_nwt.institution LEFT JOIN\n" +
"(SELECT * FROM kits_nwt.building_institutions WHERE kits_nwt.building_institutions.building_id = ?1) AS reserved_institutions\n" +
"ON reserved_institutions.institutions_user_id = kits_nwt.institution.user_id\n" +
"WHERE reserved_institutions.institutions_user_id IS null ORDER BY ?#{#pageable}",
nativeQuery = true)
Page<Institution> findPotentialInstitutionsByBuildingId(Long userId, Pageable pageable);
}
So, I want to get all institutions which are not in building with certain ID (which I will send as a parameter).
Here is my current DB data:
Institutions:
Building institutions:
What I want: (in this query, the id is set on 1, for presentation purposes)
I have looked at many SO questions and answers (such as this one) but I haven't been able to figure out the solution.
So, how do I write this query so that I get what I want?
Edit 1:
#KevinAnderson Currently, I'm trying with:
#Query(
value = "SELECT username, password, description, location, title, user_id FROM (institution INNER JOIN user ON institution.user_id = user.id) LEFT JOIN\n" +
"(SELECT * FROM building_institutions WHERE building_institutions.building_id = 1) AS reserved_institutions\n" +
"ON reserved_institutions.institutions_user_id = kits_nwt.institution.user_id\n" +
"WHERE reserved_institutions.institutions_user_id IS null ORDER BY ?#{#pageable}",
nativeQuery = true)
Page<Institution> findPotentialInstitutionsByBuildingId(Long userId, Pageable pageable);
And I'm getting this exception:
MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE) FROM building_institutions WHERE building_institutions.building_id = 1) A' at line 2
Edit 2:
#StanislavL here it is:
The problem is that your query gets me the institution with ID 25 because it is in both building with ID 1 and building with ID 2. When you do a JOIN, you have 2 rows ON institution ID being 25 in both institution table and building_institutions table. Then, your WHERE condition removes one from those two rows and I get one row where instituiton ID is 25, and I don't want what.
Here is an image for the above:
Edit 3 - this question is not a duplicate because of the following:
My query is with pagination (I added "with pagination" to the question title)
I'm not using #NamedQuery but #Query
My mistake was that I didn't write countQuery parameter to the #Query annotation
I solved it...
The query needs to look like this:
#Query(
value = "SELECT * FROM \n" +
"(institution INNER JOIN user ON institution.user_id = user.id) \n" +
"LEFT JOIN \n" +
"(SELECT * FROM \n" +
"building_institutions \n" +
"WHERE building_id = :userId)\n" +
" AS reserved_institutions \n" +
"ON reserved_institutions.institutions_user_id = kits_nwt.institution.user_id \n" +
" where reserved_institutions.institutions_user_id IS null \n"
+ "ORDER BY ?#{#pageable}"
,
countQuery = "SELECT count(*) FROM \n" +
"(institution INNER JOIN user ON institution.user_id = user.id) \n" +
"LEFT JOIN \n" +
"(SELECT * FROM \n" +
"building_institutions \n" +
"WHERE building_id =:userId)\n" +
" AS reserved_institutions \n" +
"ON reserved_institutions.institutions_user_id = kits_nwt.institution.user_id \n" +
"where reserved_institutions.institutions_user_id IS null \n" +
"ORDER BY ?#{#pageable}",
nativeQuery = true)
Page<Institution> findPotentialInstitutionsByBuildingId(#Param("userId") Long userId, Pageable pageable);
I was getting the error at line 4 near WHERE, when my query looked like this:
#Query(
value = "SELECT username, password, description, location, title, user_id FROM (institution INNER JOIN user ON institution.user_id = user.id) LEFT JOIN\n" +
"(SELECT * FROM building_institutions WHERE building_institutions.building_id = 1) AS reserved_institutions\n" +
"ON reserved_institutions.institutions_user_id = kits_nwt.institution.user_id\n" +
"WHERE reserved_institutions.institutions_user_id IS null ORDER BY ?#{#pageable}",
nativeQuery = true)
Page<Institution> findPotentialInstitutionsByBuildingId(Long userId, Pageable pageable);
and that was because I didn't add the countQuery parameter to the #Query annotation.
Big thanks to all of you who tried to help.
I hope that I save someone else many hours of misery.
Cheers! :)
Im trying to execute an HQL delete with join.. After soon searching I found that I need to create a query just like suggested HERE:
http://dasunhegoda.com/1093-you-cant-specify-target-table-table_name-for-update-in-from-clause/104/
This is my query:
dao.executeByHql(
"DELETE FROM FinalGradeResult e WHERE e.id IN "
+ "( SELECT id FROM "
+ "( SELECT x FROM FinalGradeResult x "
+ "where x.student.id = :studentId "
+ " AND x.classDiscipline IN " +
+ "(SELECT cd from ClassDiscipline cd "
+ " where cd.clazz.id = :clazzId ) ) as X )",
new HqlParameter("studentId", student.getId()),
new HqlParameter("clazzId", from.getId()));
But I keep getting this error:
org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected token:( near line 1, column 94 [DELETE FROM xxxxxxxxxxxx.entity.FinalGradeResult e WHERE e.id IN ( SELECT id FROM ( SELECT x FROM xxxxxxxxxxxxxxx.entity.FinalGradeResult x where x.student.id = :studentId AND x.classDiscipline IN (SELECT cd from xxxxxxxxxxxxxxxx.entity.ClassDiscipline cd where cd.clazz.id = :clazzId ) ) as X )]
The error points out that the second ( is wrong, the one right after "SELECT id FROM"
EDIT I ve tried like this and same error occours:
dao.executeByHql(
"DELETE FROM FinalGradeResult e WHERE e.id IN "
+ "( SELECT id FROM "
+ "( SELECT x FROM FinalGradeResult x "
+ " where x.student.id = :studentId "
+ " AND x.classDiscipline.clazz.id = :clazzId )"
+ " as X )",
EDIT 2 : The query like this doesnt work because of the problem described on the link I've posted in this question:
dao.executeByHql(
"DELETE FROM FinalGradeResult e WHERE e.id IN " + "( SELECT x.id FROM FinalGradeResult as x "
+ " where x.student.id = :studentId " + " AND x.classDiscipline.clazz.id = :clazzId )",
new HqlParameter("studentId", student.getId()), new HqlParameter("clazzId", from.getId()));
The error is:
Caused by: java.sql.SQLException: You can't specify target table 'tb_final_grade_result' for update in FROM clause
SOLUTION
After trying everything out here's our conclusion:
We cant have only one query directly because we cant have joins on DELETE.
We cant have only 2 queries (one subquery) because we have a MYSQL BUG (described on the link provided)
We cant have 3 queries (2 subqueries) because we cant have a subquery in the FROM clause. That's why our second query doesn´t work (select * from (select ...)) is invalid.
So I decided to use NativeSQL to solve the problem:
dao.executeBySQL(
" delete from tb_final_grade_result where id in "
+ " (select * from ( select finalgrade1_.id from tb_final_grade_result finalgrade1_ cross join tb_class_discipline classdisci2_ "
+ " where finalgrade1_.id_class_discipline=classdisci2_.id and finalgrade1_.id_student= :studentId and classdisci2_.id_class= :clazzId ) as tmp )",
new HqlParameter("studentId", student.getId()), new HqlParameter("clazzId", from.getId()));
Special thanks to #scaisEdge
Why do you need to use in (select on the same table that you are deleting from? Can't you just put the condition in the where clause?
DELETE FROM FinalGradeResult e WHERE e.student.id = :studentId " + " AND e.classDiscipline.clazz.id = :clazzId )",
new HqlParameter("studentId", student.getId()), new HqlParameter("clazzId", from.getId()));
Also, I'm not sure what you are referring to with the parameter classDiscipline.clazz.id? Is classDiscipline some other entity with a field named clazz that is yet another entity? That's what the query seems to be saying.
The problem with your original query is that you are not allowed you have inner selects anywhere but in select and where clauses. Because HQL operates in terms of entities and not tables or columns, selecting from subsets of tables doesn't make sense. See here:
Note that HQL subqueries can occur only in the select or where clauses.
We had a similar issue in our project and I struggled for awhile to find a single query solution, but I'm afraid with MySQL it isn't possible due to HQL's language design.
The best I came up with was to first fetch the ids as a list, and then pass that list as a list parameter to your update. For you it might be something like:
Query idQuery = createQuery("select id from FinalGradeResult gr where gr.student.id = :studentId AND gr.classDiscipline IN (SELECT cd from ClassDiscipline cd where cd.clazz.id = :clazzId"));
//add parameters
List<Number> ids = query.list();
Query entityQuery = createQuery("delete from FinalGradeResult where id in (:ids)");
entityQuery.setParameterList("ids", ids);
query.executeUpdate()
could be the position of as X is wrong
and you are repeting x instead of column name ( set ***column_name*** with the proper column name)
"DELETE FROM FinalGradeResult e WHERE e.id IN "
+ "( SELECT id FROM
( SELECT ***column_name *** FROM FinalGradeResult x where x.student.id = :studentId AND x.classDiscipline IN
(SELECT cd from ClassDiscipline cd where cd.clazz.id = :clazzId ) as X) )",
If the sibquery don't work in hibernate then try with a simple query with join
DELETE FROM FinalGradeResult e
WHERE e.id in (
SELECT id FROM FinalGradeResult x
JOIN ClassDiscipline cd ON ( cd.cd.clazz.id = :clazzId
and x.classDiscipline = cd.ClassDiscipline )
WHERE x.student.id = :studentId);
SOLUTION
After trying everything out here's our conclusion:
We cant have only one query directly because we cant have joins on DELETE.
We cant have only 2 queries (one subquery) because we have a MYSQL BUG (described on the link provided)
We cant have 3 queries (2 subqueries) because we cant have a subquery in the FROM clause. That's why our second query doesn´t work (select * from (select ...)) is invalid.
So I decided to use NativeSQL to solve the problem:
dao.executeBySQL(
" delete from tb_final_grade_result where id in "
+ " (select * from ( select finalgrade1_.id from tb_final_grade_result finalgrade1_ cross join tb_class_discipline classdisci2_ "
+ " where finalgrade1_.id_class_discipline=classdisci2_.id and finalgrade1_.id_student= :studentId and classdisci2_.id_class= :clazzId ) as tmp )",
new HqlParameter("studentId", student.getId()), new HqlParameter("clazzId", from.getId()));
Please help me understand whats wrong with this query.
String sql = "select d.arc_alrt_cde, d.alrt_desc, count(d.arc_alrt_cde) " +
"from arc_alrt a, arc_alrt_def d " +
"where d.arc_alrt_cde = a.alrt_cde " +
"and (a.stat_cde = 'OPEN' or a.stat_cde = 'RE-OPENED') " +
"group by d.arc_alrt_cde, d.alrt_desc "+
"order by count(d.arc_alrt_cde) desc"
println sql
Query query = session.createQuery(sql);
Printing SQL
sql = select d.arc_alrt_cde, d.alrt_desc, count(d.arc_alrt_cde) from arc_alrt a, arc_alrt_def d where d.arc_alrt_cde = a.alrt_cde and (a.stat_cde = 'OPEN' or a.stat_cde = 'RE-OPENED') group by d.arc_alrt_cde, d.alrt_desc order by count(d.arc_alrt_cde) desc
Getting the following error. Tried IN clause also.. Not working..
Error:
java.lang.IllegalArgumentException: node to traverse cannot be null!
at org.hibernate.hql.internal.ast.util.NodeTraverser.traverseDepthFirst(NodeTraverser.java:64)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.parse(QueryTranslatorImpl.java:300)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:203)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:126)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:88)
That's an SQL query not a HQL one, so you should use:
SQLQuery query = session.createSQLQuery(sql);
That exception you got is thrown because Hibernate expects an HQL query but receives an SQL query instead.
You are to name the count field such as count(d.arc_alrt_cde) as countOfXXX
and also your entity should be aligned with that query or you should remove that count field at all.
Changed it to use object properties and it worked. Thanks for your inputs.
String sql = "select alert.alertCode, def.alertDesc, count(alert.alertCode) " +
"from ArcAlert as alert, ArcAlertDef as def " +
"where alert.alertCode = def.alertCode " +
"and alert.status in ('OPEN', 'RE-OPENED') " +
"and alert.assignedTo = '"+assignedTo+"' " +
"group by alert.alertCode, def.alertDesc " +
"order by count(alert.alertCode) desc"
Query query = session.createQuery(sql);
lst = query.list()