How to fix the Oracle error ORA-30371: column cannot define a level in more than one dimension?

In this post, you’ll learn more about the Oracle ErrorORA-30371: column cannot define a level in more than one dimension with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30371: column cannot define a level in more than one dimension

Reason for the Error ORA-30371: column cannot define a level in more than one dimension

A column was used in the definition of a level after it had already been used to define a level in a different dimension.

How to fix the Error ORA-30371: column cannot define a level in more than one dimension ?

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

Reorganize dimension levels and hierarchies into a single dimension such that no column is used to define levels in different dimensions. There is no limit on the number of levels or hierarchies you can place in a dimension. A column can be used to define any number of levels provided all such levels are in the same dimension and provided no two levels contain identical sets of columns.