oracle data integrator tutorial for beginners

If you delete a data file in a tablespace before you oracle10g it, the file will still exist in the database data dictionary, and the file information will not be erased unless you delete the tablespace. But starting with ORACLE10GR2, Oracle allows us to completely delete an empty file without leaving traces. But note: If you add a file to the SYSTEM table space

Non-Data guard patch installation tutorials refer to the [Oracle] CPU/PSU patch installation detailed tutorial, where Data Guard requires primary and standby to be patched at the same time, so the steps are more complex and the main steps are as follows: 1. Stop log transfer service in primary; 2. Close the standby dat

Oracle Data Warehouse creation tutorial. How to create a data warehouse, create an example, think of graduation design requirements, recently began Oracle's Warehouse modeling practice, detailed records of the graphical interface Oracle database 12C

UNDO tablespace Management 1. For DML statements, as long as the data block is modified, the Oracle database retains the data block before the modification and stores it in the undo segment, the undo segment is stored in the undo tablespace. 2. undo Management Automatic undo Management (starting with Oracle9i) AUM Manual undo MUM Management We recommend that you