1z0-595 Exam Dumps | When you enable versioning using the DBMS_WM.EnableVersioning('PARCELS')command, what is the impact on

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Question 60/75

When you enable versioning using the DBMS_WM.EnableVersioning('PARCELS')command, what is the impact on the PARCELStable?

A. It adds some columns to the PARCELStable and fills in metadata to enable long transaction mechanisms. You will be only user having access to that table.

B. It adds some columns to the PARCELStable, renames it PARCELS_LT, and creates a PARCELSview with an "instead off" trigger to enable long transaction mechanisms.

C. It creates a PARCELS_LTtable that should be used in an application to enable long transactions. Each row will then be saved and versioned.

D. It locks the PARCELStable. Only the PARCELS_LTtable is available to be used within the applications.
You should merge the workspace to use it again.

Correct Answer: B

Explanation/Reference:
DBMS_WM.EnableVersioning version-enables a table, creating the necessary structures to enable the table to support multiple versions of rows.

References:
http://download.oracle.com/otndocs/products/workspace_manager/pdf/
wrkspmgr_longtrans_s298742_120403.pdf, page 9
https://docs.oracle.com/cd/B19306_01/appdev.102/b14253/long_ref.htm

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