I would like to use the Foreign key “MODEL_ID” to retrieve just one column “MODEL_NAME” from the TT_CARS table, I tried the following code, that works but it returns the whole CARS object. Also I tried the code below, its also not working Is there other way to retieve just the column (MODEL_NAME) using hibernate and JPA?? remarks: The modelName
Tag: hql
HQL query checking each item of list against multiple requirements
I want to filter a query based on the contents of a list on the entity. I do not simply want to check if something is in this list, I want to have a ‘predicate’ as in functional programming, It’s been challenging to research since ‘predicate’ is something else in hql. so basically Is what I want in my hql.
JPA createQuery where condition does not work
I am trying to use JPA to fetch records from database. However I am able to insert records indatabse and even get all the records using createQuery method of class EntityManager. But in below case I am not getting why the condition in where clause is not working. Please help me figure it out. POJO class : DAO class method:
Spring Data JPA- ignore parameter if it has a null value in between condition
I’m trying to write the following query Now it’s work fine but I want if fromDate is null to bring all data till toDate and if toDate is null to bring all data from selected date in fromDate till current date and if both are null to ignore the condition Answer You can try next pattern
Hibernate Join between 2 tables with foreign key
Im trying to get a list with results from join with two tables, but always get error. What i want is List with person and job name Error Cannot invoke “org.hibernate.hql.internal.ast.tree.FromElement.setAllPropertyFetch(boolean)” because “fromElement” is null My tables Person int id text name int job_id (foreign key with table JOB(id)) Job int id text name Entities DAO Answer To be able
Does Hibernate HQL Support Regular expression pattern matching?
I was testing different ways of data retrieval from my database (MySQL) using Hibernate. And I get to know that it is possible to use LIKE in HQL just like we do it in SQL. But when I tried REGEXP I got the following error I have also tried the different forms like RLIKE and REGEXP_LIKE. But the error is
HQL Hibernate query search check if list contains all elements of another list
I came across a problem that I cannot think of a solution. So I got this piece of code: The problem with this piece of code is that when someone searches with more than one tag (for example: #video, #image), it returns both posts with two tags and one tag. I would like it to return a post with both
org.hibernate.QueryException: JPA-style positional param was not an integral ordinal
I have the following JPQL request; But it prints following error: What the reason of my problem? Answer You have no whitespace between lines also check that the ?3 param is not empty list
how to use NOT LIKE in HQL?
I have a entity as below I want to query all row where logInId does not start with “5” I tried below code: the above code didn’t work. what is the right way to use NOT LIKE in HQL Answer In your query there’s an error: become: e.logInId is string, so you must quote your condition 5%.
HQL Join with three tables
I’m having some issues with HQL since I’m a newbie with it. Even though I don’t have issues with “simple queries”, I am currently stuck with a query involving three tables. I have already gone through some tutorials, but I haven’t been able to find a valid example for my needs. I have tried my best to explain my problem: