Which three statements are true about Flashback Data Archieve? (Choose three.)
You are installing Oracle Database 12c with the Oracle Universal Installer (OUI). You select the option to create a database by using file system storage but you do not explicitly set ORACLE_BASE. What is the effect on the installation?
Which three statements are true about Flashback Data Archieve? (Choose three.)
You create a default Flashback Data Archive FLA1and enable it for the EMPLOYEES table in the HR schema.
After a few days, you want to alter the EMPLOYEES table by executing the command:
SQL> ALTER TABLE EMPLOYEES ADD PHONE NUMBER(12);
Which statement is true about the execution of the command?
Flashback data archives retain historical data across data definition language (DDL) changes to the database as long as the DDL change does not affect the structure of the table. The one exception to this rule is that flashback data archives do retain historical data when a column is added to the table.
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_5009.htm
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