hangtags

  1. djl0525

    How can I restrict number of entries?

    I have two tables, Employees and Parking. Each employee can have up to 3 hangtags issued by the parking department so my tables have a 1:M relationship. My question is, what is the best way to restrict the number of hangtags to 3? In other words, how do I make sure that an employee is not...

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