What is join operation in Structure Query Language (SQL)?
1
Join is an operation used to combine rows from two or more tables based on one or more common fields between them.
2
Join is an operation which work on a single row of a table and return a single value.
3
Join is an operation which is used to combine two different data keys.
4
Join is an operation used to select group rows of a table that contains the same values in a specific column.
5
None of above