Given 1 relational table Doctor_ID Client_ID 2 2 2 3 2 4 3 5 4 2 4 3 And I want all the occurrences where client_id is not equals to 3, ignoring the same doctor_id. In this example, I would only get the 4th row… Doctor_ID Client_ID 3 5 How could I achieve something like that? Answer This query with
Tag: hibernate
Spring repository saveAll inserting duplicate rows for mapped entity
I am trying to insert a list of entities which have one to one relation to another entity. It is possible that the one to one mapped object would be same for many parent entity. I am expecting that the same child entity is referred in foreign keys of parent, but actually duplicate rows are getting created. He…
Spring repository: HQL using constructor doens’t parse NULL values
I’ve a Spring Repository with this HQL query: PupillaryDistanceDTO is a POJO annotated with @AllArgsConstructor(Lombok); unfortunately those null values I want to pass to the constructor are creating some troubles: Removing those null and replacing with some table’s columns, it works. Is there a w…
How to check UUID null value in JPQL?
I am using JPA/Hibernate. So I wanna to do nullCheck in JPQL, but when I do that it does not determine dataType. JPQL Query: EXCEPTION: Caused by: org.postgresql.util.PSQLException: ERROR: could not determine data type of parameter $1 at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecu…
JPA generated column name doesnt have underscore (column name mismatch)
I have a composite FK which acts as a composite PK. A part of this composite key is Fk to users table and the files are as follows: Users Unit looks like below: UsersUnitPK: UsersUnit: User: I get run time exception as follows: Caused By: java.sql.SQLSyntaxErrorException: ORA-00904: “LKUNIT1_”.…
Hibernate Unidirectional OneToMany Relationship with Not-null Constraint in Foreign Key
I have two tables like this at first, i try to set course_id foreign key in review table to have not null constraint for the sake of data integrity. So i create annotated class like for these two table like below: and i create simple app to add review to an exsiting course like code below: but this program wi…
Getting errors in getting collection for ManyToMany JPA+Hibernate
I have two classes. A film that keeps authors in it. And the author himself. I want to make the connection ManyToMany for them using EntityManager, where then I can get the data for Set. Class movie: Class author: Method, where i add authors for movie and push to database: Get movie with authors: But i get mo…
Execute sql native query from two entity using jpa or hibernate
I have 2 tables, salesOrder with column “id”, “customerId”, “textReview(boolean)” and table SalesOrderline with column “salesOrderId”, “productId”. i want to change boolean data in textReview column. I got data from the client in the form is customer…
Hibernate Native SQL returns some nulls instead of partially filled objects
I have the following (postgress) SQL Query: And what it does is it creates a series of 6 hours per day and takes averages from it. A result may look like this: variable_id date_time sample_count sample_period_ms min_value max_value value 15 2021-06-06 06:00:00 120 59577 -1.4960686 1.1995025 0.3043984425413674…
Corda: How to use the AndComposition with a VaultCustomQueryCriteria
I use a RPC client (Java Spring Boot application) to connect to a Corda 4.6 node. I want to run a custom vault query with the following query criteria: This is very similar to the example from the Corda documentation. However, I just retrieve UNCONSUMED states. What could go wrong here? The following snippet …