Oracle / PLSQL: ORA-02260 Error Message
Learn the cause and how to resolve the ORA-02260 error message in Oracle.
Description
When you encounter an ORA-02260 error, the following error message will appear:
- ORA-02260: table can have only one primary key
Cause
You tried to create a primary key for a table that already has a primary key.
Resolution
The option(s) to resolve this Oracle error are:
Option #1
You can drop the existing primary key for the table and create a new primary key.
For example, to drop the primary key named supplier_pk from the supplier table, you could execute the following command:
ALTER TABLE supplier DROP CONSTRAINT supplier_pk;
Then re-create your primary key.
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