Does one need to drop/ truncate objects before importing?
(for DBA) Before one import rows into already populated tables, one needs to truncate or drop these tables to get rid of the old data. If not, the new data will be appended to the existing tables. One must always DROP existing Sequences before re-importing. If the sequences are not dropped, they will generate numbers inconsistent with the rest of the database. Note: It is also advisable to drop indexes before importing to speed up the import process. Indexes can easily be recreated after the data was successfully imported. How can a button be used in a report to give a drill down facility? By setting the action associated with button to Execute pl/sql option and using the SRW.Run_report function. Can one import/export between different versions of Oracle? (for DBA) Different versions of the import utility is upwards compatible. This means that one can take an export file created from an old export version, and import it using a later version of the import utility. This is quite an effe
