I try to insert a new value into a table by using preparedStatement but I obtain a syntax error that I can’t solve. Java code : Error Code : I hope that you can help me thank you. Answer I see several potential problems here. First, you are passing the SQL string to executeUpdate(), which is incorrect. …
Tag: java
How to check not null date in spring jpa
I have 2 IF. If No 1, is work for me. Because i wont if data is present and get house keeping == null. for action to update condition,status,and housekeeping. IF no 2, no work for me. I wont if getData is present and get housekeeping is availabe / not null. For action only to update condition Only check ̵…
Error with the ID generated when i insert new data in my database Java Derby
i am building an app with a function to insert new Users in the database with Java Derby. Everything is going well, but when i close the app, i run it again and i try to insert a new User (called …
AnnotationException: A Foreign key refering has the wrong number of column. should be 0
What is the reason this error in Hibernate? org.hibernate.AnnotationException: A Foreign key refering com.Otomasyon.entity.Ogrenciler from com.Otomasyon.entity.AlinanDersler has the wrong number of …
Getting Exception With DB2 Auto Increment
I have created the following table: “CREATE TABLE ParsonCollection ” + “(id integer not null GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1),” + “name …
Java + Postgresql : How to store Parent and List of all children in a HashMap>
I have an sql table Children : | ParentName | ChildrenName | ——————————————————————————— | parent 1 | child 1 | | parent 1 | child 2 | | parent 2 | child 3 | | parent 1 | …
How to retrieve SQL Error message with Hibernate
I have developed a small application accessing a PostgreSQL database with Hibernate. When I try to delete a record involved in a foreign key with another table, a javax.persistence….
‘Could not extract ResultSet’ error when using nativeQuery in JPA
I’m using JPARepository in SpringBoot and using the @Query annotation but I get an error org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; …
How to sort by pagerequest with inner join
I have two tables with many to one realtion. I want to sort data in table “user” by column “street” that is in “address” table in ASC or DESC direction defined by request param: localhost:8080/…
Hibernate Null Attribute Value using Camel-Case
Using Hibernate 5.3, Spring Boot 2.1, MySQL, that runs in Windows 10 OS. What I know I have verified on my phpmyadmin the case of the attributes. And as long the case were the same as the attributes of my Entity class you don’t have to explicitly define the column name in that Entity. And using @Column(…