How to fix the Oracle error XOQ-02015: Dimension or hierarchy has too many Grouping ID columns.?

In this post, you’ll learn more about the Oracle ErrorXOQ-02015: Dimension or hierarchy has too many Grouping ID columns. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

XOQ-02015: Dimension or hierarchy has too many Grouping ID columns.

Reason for the Error XOQ-02015: Dimension or hierarchy has too many Grouping ID columns.

Cause: The number of Grouping ID columns exceeded the maximum allowed columns. Possible causes are: 1) Attribute spreading was enabled for some attributes in the dimension. 2) There were too many levels defined for the dimension or hierarchy.

How to fix the Error XOQ-02015: Dimension or hierarchy has too many Grouping ID columns. ?

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

Action: Do one of the following: 1) Disable attribute spreading for some or all of the attributes. 2) Eliminate some attributes. 3) Eliminate some levels.