How to fix the Oracle error PLS-00633: RETURN statement in a pipelined function cannot contain an expression?

In this post, you’ll learn more about the Oracle ErrorPLS-00633: RETURN statement in a pipelined function cannot contain an expression with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00633: RETURN statement in a pipelined function cannot contain an expression

Reason for the Error PLS-00633: RETURN statement in a pipelined function cannot contain an expression

A RETURN statement in a pipelined function contains an expression, which is not allowed. Pipelined functions must send back values to the caller by using the PIPE statement.

How to fix the Error PLS-00633: RETURN statement in a pipelined function cannot contain an expression ?

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

Remove the expression from the RETURN statement and use a PIPE statement to return values. Else, convert the function into a non-pipelined function.