Oracle

How to fix the Oracle error ORA-16557: database is already in use?

How to fix the Oracle error ORA-30771: Cannot add more than one referential constraint on REF column “string”?

How to fix the Oracle error ORA-48141: error creating directory during ADR initialization [string]?

How to fix the Oracle error CRS-02540: Value for attribute ‘string’ is of incorrect type (integer is expected)?

How to fix the Oracle error RMAN-07252: ========================?

How to fix the Oracle error IMG-00800: internal error while parsing attribute string?

How to fix the Oracle error INS-350923: Invalid value provided for the RAC One service name.?

How to fix the Oracle error JMS-00143: Queue must be specified?

How to fix the Oracle error ORA-02069: global_names parameter must be set to TRUE for this operation?

How to fix the Oracle error ORA-12469: no user levels found for user string and policy string?

How to fix the Oracle error ORA-12855: cannot run parallel or insert direct load in a loopback?

How to fix the Oracle error ORA-15102: invalid POWER expression?