Computer scienceSoftware development foundationsSQL and databasesDBMSMySQLData Definition Language

PRIMARY KEY constraint

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This table employees has a constraint PRIMARY KEY pk_employees on the columns name, surname and phone.

Employees table schema

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('Ann', 'Tompson', 4000, 'IT', 45)

('Carl', 'Johns', 6444, 'PR', 21)

('Paul', 'Rae', 8560, 'HR', 32)

('Ann', 'Smith', 8499, 'MA', 27)

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