How to fix the Oracle error XOQ-01991: The data type of this measure in cube “string” or its mapped expression is incompatible with materialized views.?

In this post, you’ll learn more about the Oracle ErrorXOQ-01991: The data type of this measure in cube “string” or its mapped expression is incompatible with materialized views. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

XOQ-01991: The data type of this measure in cube “string” or its mapped expression is incompatible with materialized views.

Reason for the Error XOQ-01991: The data type of this measure in cube “string” or its mapped expression is incompatible with materialized views.

Cause: The data type of a numeric measure in a cube with a materialized view had restricted scale or precision.

How to fix the Error XOQ-01991: The data type of this measure in cube “string” or its mapped expression is incompatible with materialized views. ?

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

Action: Change the data type to NUMBER without any qualifications.