Selection criteria based on non-primary key columns in Custom-SQL

Question

Hi all,
Could anybody please tell me how to perform a search using non-primary key columns, The query is written in Workbench under Custom Sql --> Read Object. The Query goes something like this
select * from Employee where firstName like #name
where firstName is a Non-primary key column.
The Java Code goes like this
Employee empm = new Employee();
empm.setFirstName("John");
Employee employees = (Employee) session.readObject(empm);
This does not fetch me any values . I dont want the queries to be written in any java class. Is there Any other way to do it ??

Answer 1

Hi all,
Could anybody please tell me how to perform a
search using non-primary key columns, The query is
written in Workbench under Custom Sql --> Read
Object. The Query goes something like this
select * from Employee where firstName like #name
where firstName is a Non-primary key column.
The Java Code goes like this
Employee empm = new Employee();
empm.setFirstName("John");
Employee employees = (Employee)
session.readObject(empm);
This does not fetch me any values . I dont want the
queries to be written in any java class. Is there Any
other way to do it ??I dont think you have set it up the right way to do what you want to do. You need to click on "Queries" on the Employee Descriptor and then Named Queries and then give a name for a named query and then choose ReadObjectQuery under type and then choose SQL under Format. Enter the custom SQL and then export the project xml file.
Then in your application logic you have to call this named query the usual way.
Employee employee = (Employee)session.executeQuery("findEmployeeByName,Employee.class,args);
where args is a vector containing the name of the Employee.