How to fix the Oracle error LPX-01129: [XUST0001] Updating expression in a wrong position?

In this post, you’ll learn more about the Oracle ErrorLPX-01129: [XUST0001] Updating expression in a wrong position with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-01129: [XUST0001] Updating expression in a wrong position

Reason for the Error LPX-01129: [XUST0001] Updating expression in a wrong position

Cause: It is a static error if an updating expression is used in any position other than one of the following:

1. The topmost expression in the body of a query.

2. The modify clause of a transform expression.

3. The return clause of a FLWOR expression.

4. The return clauses of a typeswitch expression in which every return clause contains an updating expression, an empty expression ( ), or a call to the fn:error function.

5. The then and else clauses of a conditional statement in which both the then and else clauses contain either an updating expression, an empty expression ( ), or a call to the fn:error function.

6. An operand of a comma expression in which each operand is either an updating expression, an empty expression ( ), or a call to the fn:error function.

7. The content of a parenthesized expression.

8. The body of a function declaration in which the keyword updating is specified.

How to fix the Error LPX-01129: [XUST0001] Updating expression in a wrong position ?

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

Action: None