|Oracle9i Supplied PL/SQL Packages and Types Reference
Release 1 (9.0.1)
Part Number A89852-02
DBMS_WM , 48 of 52
This procedure enables the
VIEW_WO_OVERWRITE history option that had been disabled by the SetWoOverwriteOFF Procedure.
This procedure affects the recording of history information in the views named <table_name>_HIST by changing the
VIEW_W_OVERWRITE option to
VIEW_WO_OVERWRITE (without overwrite). That is, from this point forward, the views show all modifications to the same version of the table. A history of modifications to the version is maintained; that is, subsequent changes to a row in the same version do not overwrite earlier changes.
This procedure affects only tables that were affected by a previous call to the SetWoOverwriteOFF Procedure.
The <table_name>_HIST views are described in Oracle9i Application Developer's Guide - Workspace Manager. The
VIEW_W_OVERWRITE options are further described in the description of the EnableVersioning Procedure.
VIEW_WO_OVERWRITE history option can be overridden when a workspace is compressed by specifying the
compress_view_wo_overwrite parameter as
TRUE with the CompressWorkspace Procedure or CompressWorkspaceTree Procedure.
The history option affects the behavior of the GotoDate Procedure. See the Usage Notes for that procedure.
To reverse the effect of this procedure, use the SetWoOverwriteOFF Procedure.
The following example enables the
VIEW_WO_OVERWRITE history option.