oracle add unique constraint to column

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showing results for - "oracle add unique constraint to column"
Abril
02 Jul 2018
1ALTER TABLE table_name
2ADD CONSTRAINT constraint_name UNIQUE (column1, column2, ... column_n);
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Emelie
08 Feb 2017
1ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col_name); 
2ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col1, col2); -- Multiple
3ALTER TABLE table_name ADD col_name NUMBER UNIQUE;				  	-- New field
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