> The dbtimezone doesnt matter? I guess not. See point 3) of Notes 340512.1: "The only function of the database time zone is that it functions as a time zone in which the values of the "TIMESTAMP WITH LOCAL TIME ZONE" (TSLTZ) datatype are normalized to the database timezone when they are stored in the database." That's not clear to me. I thought that meant if you insert a value say '12-MAY-10 10.31.01.434514 AM' into a column of type TIMESTAMP WITH LOCAL TIME ZONE, the internal representation of the data would be different depending on dbtimezone. My test in two 10.2.0.4 databases with different dbtimezone's shows that they're the same in block dump as well as select dump(column) from table. Yong Huang -- //www.freelists.org/webpage/oracle-l