a multi-column unique constraint
Hello,
I'm creating a data model using MySQL Workbench. I cannot find a way how to add a multi-column unique constraint to a table according to the following create table command:
CREATE TABLE Persons (
ID int NOT NULL,
LastName varchar(255) NOT NULL,
FirstName varchar(255),
Age int,
CONSTRAINT UC_Person UNIQUE (ID,LastName)
).
Could somebody give me a tip on how to do this?
Kind regards,
Radek
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a multi-column unique constraint
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April 19, 2023 07:39AM
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