Primary keys serve as unique identifiers for the records in a table, while foreign keys are used to link related tables together. When designing a set of database tables, it is important to specify which fields will be used for primary and foreign keys to clarify both in-table structure and inter-table relationships. About Foreign Keys […]
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A SQL Server foreign key is a column or group of columns in one table that contains values that match the primary key values in the same or another table. Learn more.
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This article provides detailed information on Foreign Keys in SQL Server. Get a free Stored Procedure to find Foreign Keys in a child table.
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Foreign keys have a bad reputation, but here you can learn how they can benefit and even improve query performance.
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