Top "Composite-primary-key" questions

Composite primary key is a primary key, which consists of more than one column.

ALTER TABLE to add a composite primary key

I have a table called provider. I have three columns called person, place, thing. There can be duplicate persons, duplicate …

mysql sql primary-key alter-table composite-primary-key
How to properly create composite primary keys - MYSQL

Here is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate …

mysql primary-key myisam composite-key composite-primary-key
Sqlite primary key on multiple columns

What is the syntax for specifying a primary key on more than 1 column in SQLITE ?

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How can I define a composite primary key in SQL?

How can I define a composite primary key consisting of two fields in SQL? I am using PHP to create …

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How to update primary key

Here is my problem - I have 2 tables: WORKER, with columns |ID|OTHER_STAF| , where ID is primary key FIRM, …

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How to create and handle composite primary key in JPA

I want to have versions from the same data entry. In other words, I want to duplicate the entry with …

java jakarta-ee jpa composite-primary-key
JPA COUNT with composite primary key query not working

In my db, I have a table (Defaults), and when I generate an entity from table, I get these two …

sql hibernate jpa count composite-primary-key
Foreign key relationship with composite primary keys in SQL Server 2005

I have two tables Table1( FileID, BundledFileID, Domain) and Table2( FileID, FileType, FileName) In Table2 FileID and FileType are the …

sql-server-2005 foreign-key-relationship composite-primary-key