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Oracle database error code ORA-21520 – database server driver not installed

Oracle Database Error Code ORA-21520 Description :

database server driver not installed

Error Cause:

User attempted to access a database server through an object-mode OCI environment but the necessary driver for supporting such access to the database server is not installed or linked in.

How to Solve :

Check if the driver corresponding to the database server has been installed/linked in and entered in the server driver table.

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Oracle database error code ORA-21520 – database server driver not installed

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