oracle unique constraint
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col_name);
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col1, col2); -- Multiple
ALTER TABLE table_name ADD col_name NUMBER UNIQUE; -- New fieldoracle unique constraint
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col_name);
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col1, col2); -- Multiple
ALTER TABLE table_name ADD col_name NUMBER UNIQUE; -- New fieldCopyright © 2021 Codeinu
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