How to fix the Oracle error ORA-37142: (XSSQLMDQ02) Invalid host variable data type for MDQUERY procedure: string expected.?

In this post, you’ll learn more about the Oracle ErrorORA-37142: (XSSQLMDQ02) Invalid host variable data type for MDQUERY procedure: string expected. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-37142: (XSSQLMDQ02) Invalid host variable data type for MDQUERY procedure: string expected.

Reason for the Error ORA-37142: (XSSQLMDQ02) Invalid host variable data type for MDQUERY procedure: string expected.

The user specified a host variable that was not of the correct type.

How to fix the Error ORA-37142: (XSSQLMDQ02) Invalid host variable data type for MDQUERY procedure: string expected. ?

You can fix this error in Oracle by following the below steps

Choose a different host variable.