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Which annotation should I use: @IdClass or @EmbeddedId
...se because with @IdClass you cannot access the entire primary key object using any field access operator. Using the @EmbeddedId you can do like this:
@Embeddable class EmployeeId { name, dataOfBirth }
@Entity class Employee {
@EmbeddedId EmployeeId employeeId;
...
}
This gives a clear notion ...
Select random row from a sqlite table
I have a sqlite table with the following schema:
7 Answers
7
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How to define object in array in Mongoose schema correctly with 2d geo index
I'm currently having problems in creating a schema for the document below. The response from the server always returns the "trk" field values as [Object]. Somehow I have no idea how this should work, as I tried at least all approaches which made sense to me ;-)
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MySQL Multiple Joins in one query?
I have the following query:
4 Answers
4
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How to get last inserted row ID from WordPress database?
My WordPress plugin has a table with a AUTO_INCREMENT primary key field called ID. When a new row is inserted into the table, I'd like to get the ID value of the insertion.
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Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax
I'm trying to pass an array of objects into an MVC controller method using
jQuery's ajax() function. When I get into the PassThing() C# controller method,
the argument "things" is null. I've tried this using a type of List for
the argument, but that doesn't work either. What am I doing wrong?
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Database design for audit logging
Every time I need to design a new database I spend quite some time
thinking on how I should set up the database schema to keep an audit log of
the changes.
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Hibernate error - QuerySyntaxException: users is not mapped [from users]
I'm trying to get a list of all the users from "users" table and I get the following error:
18 Answers
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Select row with most recent date per user
I have a table ("lms_attendance") of users' check-in and out times that looks like this:
11 Answers
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Spring 3 RequestMapping: Get path value
Is there a way to get the complete path value after the requestMapping @PathVariable values have been parsed?
10 Answer...