Level name is not unique within this dimension
ORA-30344 – Oracle Error Code
Number of child cols different from number of parent level cols
ORA-30345 – Oracle Error Code
Circular dimension hierarchy
ORA-30346 – Oracle Error Code
Hierarchy name must be unique within a dimension
ORA-30336 – Oracle Error Code
No child for specified JOIN KEY
ORA-30347 – Oracle Error Code
A table name is required to qualify the column specification
ORA-30337 – Oracle Error Code
Multiple JOIN KEY clauses specified for the same parent level
ORA-30348 – Oracle Error Code
ADD and DROP cannot both be specified
ORA-30338 – Oracle Error Code
Illegal dimension hierachy name
ORA-30349 – Oracle Error Code
Specified dimension hierarchy does not exist