Answers for "oracle add unique constraint to column"

SQL
4

oracle add unique constraint to column

ALTER TABLE table_name
ADD CONSTRAINT constraint_name UNIQUE (column1, column2, ... column_n);
Posted by: Guest on January-14-2021
7

oracle add unique constraint to column

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 field
Posted by: Guest on July-03-2021

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