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Oracle® Database SQL Reference
10g Release 2 (10.2)

Part Number B14200-02
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CREATE RESTORE POINT

Purpose

Use the CREATE RESTORE POINT statement to create a restore point, which is a name associated with an SCN of the database corresponding to the time of the creation of the restore point. A restore point can be used to flash a table or the database back to the time of creation of the restore point without the need to determine the SCN or timestamp.

There are two types of restore point:

You can create either type of restore point on a primary or standby database. The database can be open or mounted but not open. If the database is mounted, then it must have been shut down cleanly before being mounted unless it is a physical standby database.


See Also:


Prerequisites

To create a normal restore point, you must have either SELECT ANY DICTIONARY or FLASHBACK ANY TABLE privilege. To create a guaranteed restore point, you must have the SYSDBA system privileges.To view or use a restore point, you must have the SELECT ANY DICTIONARY or FLASHBACK ANY TABLE system privilege or the SELECT_CATALOG_ROLE role.

You must have created a flash recovery area before creating a guaranteed restore point. You need not enable flashback database before you create the restore point. However, if flashback database is not enabled, then the first guaranteed restore point you create on this database must be created when the database is mounted. The database must be in ARCHIVELOG mode if you are creating a guaranteed restore point.

Syntax

create_restore_point::=

Description of create_restore_point.gif follows
Description of the illustration create_restore_point.gif

Semantics

restore_point Specify the name of the restore point. The name is a character value of up to 128 characters.

The database can retain up to 2048 restore point. Restore points are retained in the database for at least the number of days specified for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter. The default value of that parameter is 7 days. Guaranteed restore points are retained in the database until explicitly dropped by the user.

GUARANTEE FLASHBACK DATABASE Specify this clause to create a guaranteed restore point. Please refer to the "Purpose" section above for information on guaranteed restore points.

Examples

Creating and Using a Restore Point: Example The following example creates a normal restore point, updates a table, and then flashes back the altered table to the restore point. The example assumes the user hr has the appropriate system privileges to use each of the statements.

CREATE RESTORE POINT good_data;

SELECT salary FROM employees WHERE employee_id = 108;

    SALARY
----------
     12000

UPDATE employees SET salary = salary*10
   WHERE employee_id = 108;

SELECT salary FROM employees
   WHERE employee_id = 108;

    SALARY
----------
    120000

COMMIT;

FLASHBACK TABLE employees TO RESTORE POINT good_data;

SELECT salary FROM employees
   WHERE employee_id = 108;

    SALARY
----------
     12000