Modify a column by adding an unnamed CHECK constraint. Column column_1 is an existing, already constrained column in table_1.
ALTER TABLE table_1 MODIFY column_1 CHECK (column_1 IS NOT NULL);
Modify a column by adding an unnamed CHECK constraint. Column column_1 is an existing, already constrained column in table_1.
ALTER TABLE table_1 MODIFY column_1 CHECK (column_1 IS NOT NULL);