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Oracle dbms_rectifier_diff

Oracle Database Tips by Donald Burleson

Using Oracle dbms_rectifier_diff

The dbms_rectifier_diff package contains the APIs that can be used to determine if data inconsistencies exist between two replicated sites. It can then be used to resolve those inconsistencies.

To have Oracle resynchronize the two tables you next run the dbms_rectifier_diff.rectify
procedure. Oracle will resynchronize the remote table with the local table. The local table's
data will not be changed. Oracle will insert the missing rows and delete the rows that are not
contained in the local table.

sname1 => 'PUBS',
oname1 => 'AUTHOR',
reference_site => 'NAVDB.WORLD',
sname2 => 'PUBS',
oname2 => 'AUTHOR',
comparison_site => 'MYDB.WORLD',
column_list => NULL,
missing_rows_sname => 'PUBS',
missing_rows_oname1 => 'MISSING_ROWS_AUTHOR',
missing_rows_oname2 => 'MISSING_LOCATION_AUTHOR' ,
missing_rows_site => 'NAVDB.WORLD',
comit_rows => 100);

The last point about the dbms_rectifier_diff package is that both procedures may take an
extremely long time to execute.

One way to determine if your data is out of synch is to use the dbms_rectifier_diff package that
comes with Oracle9i.

The last point about the dbms_rectifier_diff package is that both procedures may take an extremely long time to execute. You might want to just re-instantiate the remote table using transportable tablespaces or an export of the local table




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