# Set Operations

- [Precedence Control in Table Operations](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/set-operations/precedence-control-in-table-operations.md): Control the execution order of UNION, EXCEPT, and INTERSECT operations. Learn how to use parentheses to define explicit operation priority.
- [EXCEPT](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/set-operations/except.md): Return rows from the first result set that do not appear in the second. This set operator performs a subtraction of two datasets.
- [INTERSECT](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/set-operations/intersect.md)
- [MINUS](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/set-operations/minus.md): Oracle-compatible synonym for the EXCEPT operator. It returns rows from the first query that are not present in the second query.
- [UNION](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/set-operations/union.md): Combine results from multiple SELECT statements into a single result set. This operator can optionally remove duplicates or include all rows.


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