What is join operation in Structure Query Language (SQL)?

2021

1. A.

   Join is an operation used to select group rows of a table that contains the same values in a specific column.

2. B.

   Join is an operation which is used to combine two different data keys.

3. C.

   Join is an operation used to combine rows from two or more tables based on one or more common fields between them.

4. D.

   Join is an operation which works on a single row of a table and return a single value.

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