Define Tables, Primary key, and foreign key.
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A collection of rows and columns is called table.
Primary is one or more attribute that uniquely each record in a table.
Foreign key is one or more attribute that provide link between data in two table.
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A table is a collection of related data held in a table format within a database. A foreign key is a column or group of columns in a relational database table that provides a link between data in two tables, A primary key is used to ensure data in the specific column is unique.
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