How to fix the Oracle error PLS-01500: Unions are not allowed in the definition of a view?

In this post, you’ll learn more about the Oracle ErrorPLS-01500: Unions are not allowed in the definition of a view with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-01500: Unions are not allowed in the definition of a view

Reason for the Error PLS-01500: Unions are not allowed in the definition of a view

Unions are not allowed in the definition of a view. Sect. 6.9

How to fix the Error PLS-01500: Unions are not allowed in the definition of a view ?

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

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