获取ORA-01722：Spring数据查询中的数字无效

Question

I have two tables joined by non primary keys. This SQL query outputs 3 values as expected.

Its looking for the primary key of Department table. department2_.deptno Therefore I will try @EmbeddedId.

Answer 1

Try the following in the Where statement:

employee.emp_dept_code In(employee.department)

Update

you are trying to compare a number to varchar2 in where statement.

Answer 2

If you are on UNIX/ LINUX operating system, then the table names in MySQL are case sensitive.

So I always recommend to have lower case table name for @Table(name = "<your_table>") and create table with lowercase letters in create query. Idea is to be consistent if your company have guidelines.

You can also make MySQL case insensitive follow this tutorial

Answer 3

该表没有主ID，因此我使用ROWID作为主键，并且可以正常工作。JPA实体没有主键？