How to fix the Oracle error LPX-01004: [XPTY0004] Expression type does not match a required type?

In this post, you’ll learn more about the Oracle ErrorLPX-01004: [XPTY0004] Expression type does not match a required type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-01004: [XPTY0004] Expression type does not match a required type

Reason for the Error LPX-01004: [XPTY0004] Expression type does not match a required type

Cause: It is a type error if, during the static analysis phase, an expression is found to have a static type that is not appropriate for the context in which the expression occurs, or during the dynamic evaluation phase, the dynamic type of a value does not match a required type as specified by the matching rules in 2.5.4 SequenceType Matching.

How to fix the Error LPX-01004: [XPTY0004] Expression type does not match a required type ?

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

Action: Check the expression type.