# SET statements

Use the SET statements to set the current deferrability for constraints or to set the current role, schema, or isolation level.

- SET CONSTRAINTS statement
  The SET CONSTRAINTS statement sets the deferrability of one or more constraints.
- SET ISOLATION statement
  The SET ISOLATION statement changes the isolation level for a user's connection.
- SET ROLE statement
  The SET ROLE statement sets the current role for the current SQL context of a session.
- SET SCHEMA statement
  The SET SCHEMA statement sets the default schema for a connection's session to the designated schema.

Parent topic: Statements