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What is a primary key in a relational database?a . C . An index for sorting recordsb.D . A secondary key used for backup purposesc.A
What is a primary key in a relational database?aC An index for sorting recordsb.D A secondary key used for backup purposesc.A A field that uniquely identifies a record in a tabled.B A table that stores primary data
What is a primary key in a relational database?aC An index for sorting recordsb.D A secondary key used for backup purposesc.A A field that uniquely identifies a record in a tabled.B A table that stores primary data
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