At first , My db is Orcale.
A column type is String and its format (YYYYMM) in time dimension and fact table.
But A column type is Date(ex: 2008/1/1) in time dimension and fact table.
it error exception
java.lang.ClassCastException: java.sql.Timestamp cannot be cast to java.lang.String
What step I need to do to solve this error.