Oracle : Ошибка ORA-30338

"illegal dimension hierachy name"
*Cause: An illegal dimension hierarchy name was specified in a dimension DDL

*Action: Make sure the name begins with a letter, contains only letters,
digits and underscore and contains no more than 30 characters.
If you qualify the name with the owner name, make sure
the owner name conforms with the requirements for an owner name
on your system.

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