alter table add check constraint oracle
ALTER TABLE suppliers
ADD CONSTRAINT check_supplier_name
CHECK (supplier_name IN ('IBM', 'Microsoft', 'NVIDIA'));
alter table add check constraint oracle
ALTER TABLE suppliers
ADD CONSTRAINT check_supplier_name
CHECK (supplier_name IN ('IBM', 'Microsoft', 'NVIDIA'));
alter table add check constraint oracle
ALTER TABLE table_name
ADD CONSTRAINT constraint_name CHECK (column_name condition) [DISABLE];
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