How to fix the Oracle error PLS-00521: ORDER methods must be declared with 1 (one) parameter in addition to (optional) SELF.?

In this post, you’ll learn more about the Oracle ErrorPLS-00521: ORDER methods must be declared with 1 (one) parameter in addition to (optional) SELF. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00521: ORDER methods must be declared with 1 (one) parameter in addition to (optional) SELF.

Reason for the Error PLS-00521: ORDER methods must be declared with 1 (one) parameter in addition to (optional) SELF.

An order member function was declared without the user-specified parameter. Order member functions have two parameters, one is the default SELF parameter which is added by the compiler. the second parameter is added by the user and must declare an order method which must be the same type as the containing object type.

How to fix the Error PLS-00521: ORDER methods must be declared with 1 (one) parameter in addition to (optional) SELF. ?

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

Check and correct the way the parameter is specified.