Posts by Yuri Oliveira • 1 point

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  A: How do I leave the primary and foreign key of a table with the NOT NULL Constraint in Postgresql?

  1 - If you create PK contraints, the field already becomes Notnull by default. 2 - You can create a Check : CHECK (column_name IS NOT NULL).

  sql postgresql

  answered 4 years, 6 months ago Yuri Oliveira 1