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oracle pl/sql

i created composit primary on two column in a table . now i want to add one more column to same primary key
oracle database 12c
please let me now
cant we add another column to composit primary key with out dropping existing primary key?
Best Answer
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Try this...(You must drop the old composite primary key before creating this)
ALTER TABLE <TABLE_NAME>
ADD CONSTRAINT <CONST_NAME> PRIMARY KEY (COL1_NAME, COL2_NAME,… , N);
Answers
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User, please specify the database name(Oracle, MySQL, etc.,) that you are using.
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oracle database 12c
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Try this...(You must drop the old composite primary key before creating this)
ALTER TABLE <TABLE_NAME>
ADD CONSTRAINT <CONST_NAME> PRIMARY KEY (COL1_NAME, COL2_NAME,… , N);
-
can not we add with out drop old composit key?
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can not we add with out drop old composit key?
No. So what's the problem with dropping the key immediately before re-creating it?