postgres add not null to existing column
ALTER TABLE table_name ALTER COLUMN column_name SET NOT NULL;postgres add not null to existing column
ALTER TABLE table_name ALTER COLUMN column_name SET NOT NULL;add column not null with default value postgres
ALTER TABLE users
ADD COLUMN "priv_user" BOOLEAN NOT NULL DEFAULT FALSE;alter column set not null to null postgres
ALTER TABLE person ALTER COLUMN phone DROP NOT NULL;Copyright © 2021 Codeinu
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