Answers for "postgresql add not null constraint"

SQL
3

postgres add not null to existing column

ALTER TABLE table_name ALTER COLUMN column_name SET NOT NULL;
Posted by: Guest on March-12-2020
1

postgresql add not null constraint

alter table users alter column email set not null;
Posted by: Guest on May-06-2020
3

postgresql change column to not null

-- To change a column to NOT NULL:
ALTER TABLE products ALTER COLUMN product_no SET NOT NULL;
Posted by: Guest on November-02-2020

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