composite-primary-key

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Select the just-inserted record with a composite Primary Key

I have a table with a composite Primary Key, arranged something like this: CREATE TABLE [dbo].[mytable][详细]

2023-03-01 15:43 分类：问答
Question about composite primary keys

Example table: Ticket - id - tenant_id - foo TicketItem - id - tenant_id - ticket_id - bar Assuming that id and tenant_id on each table make up composite primary keys, and that ticket_id is a forei[详细]

2023-02-22 06:32 分类：问答
How do I create a composite primary key using GORM?

I have three domain classes: Beer, Review, and Reviewer. I want the Review table to create a many to many relationship between Beer and Reviewer, so I want the primary key of Review to be a composite[详细]

2023-02-21 18:59 分类：问答
How to create a foreign key referencing one column in a composite primary key

I have two tables Catalog and CatalogIndex catalog has the following columns DN开发者_运维技巧 PID[详细]

2023-02-17 07:28 分类：问答
Problem with composite_primary_key Gem in Rails

I\'m using the composite primary keys gem from drnic and I\'ve got a problem with it: If I want to create a CourseOrder (with has a cpk) with the following command in my tests: course_order = CourseOr[详细]

2023-02-14 06:17 分类：问答
Hibernate does not fill AUTO_INCREMENT column being part of composite PK, bug or anti-feature?

I\'ve found a problem with Hibernate and composite key with one of its column auto incremented. I\'m using MySQL and primary key composed of 2 columns, GID and LANG. GID column is set as AUTO_INCREME[详细]

2023-02-10 08:39 分类：问答
SQL - Can this relation have a primary key?

The relationship between bands and members, \'MemberOf\', includes a member id (Mid), band id (Bid), \'StartYear\', \'EndYear\' and \'Instrument\' played. Mid and Bid are both foreign keys to Member a[详细]

2023-02-06 17:18 分类：问答
What query creates a trigger to generate composite primary key with two fk?

I\'m trying to write a command to create a trigger that generates the composite primary key. This pk is in turn based on two fk.[详细]

2023-02-05 19:07 分类：问答
Composite primary key or not?

Here\'s what\'s confusing me. I often have composite primary keys in database tables. The bad side of that approach is that I have pretty extra work when I delete or edit entries. However, I feel that[详细]

2023-02-05 18:40 分类：问答
JPA OneToOne association where 2 entities use composite primary keys but use different column names?

We are trying to use Hibernate with a database that uses a lot of composite keys and it\'s been causing us a lot of headaches.[详细]

2023-02-03 04:13 分类：问答