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You must track all transactions that modify certain tables in the sales schema for at least three years.
Automatic undo management is enabled for the database with a retention of one day.
Which two must you do to track the transactions? (Choose two.)
E: By default, flashback archiving is disabled for any table. You can enable flashback archiving for a table if you have the FLASHBACK ARCHIVE object privilege on the Flashback Data Archive that you want to use for that table.
D: Creating a Flashback Data Archive
/ Create a Flashback Data Archive with the CREATE FLASHBACK ARCHIVE statement, specifying the following:
Name of the Flashback Data Archive
Name of the first tablespace of the Flashback Data Archive
(Optional) Maximum amount of space that the Flashback Data Archive can use in the first tablespace
/ Create a Flashback Data Archive named fla2 that uses tablespace tbs2, whose data will be retained for two years:
CREATE FLASHBACK ARCHIVE fla2 TABLESPACE tbs2 RETENTION 2 YEAR;
Examine the following command:
SQL> DBMS_STATS. SET_TABLE_PREFS ('SH', 'CUSTOMERS', 'PUBLISH', 'false');
What is the effect of executing this command?
What is the benefit of running the catctl.pl script during an upgrade of a pre-12c database to an Oracle 12c database?
Which two can be recommendations given by SQL Access Advisor? (Choose two.)
The HR schema exists in databases, BOSTON and DENVER, with the same password, HR.
You have CREATE DATABASE LINK and CREATE SESSION privileges in both databases.
DENVER is defined as a service name in the tnsnames.ora of both databases.
You plan to use this command:
CREATE DATABASE LNK hr_link CONNECT TO hr IDENTIFIED BY hr USING 'DENVER';
What must be done to ensure that all users in BOSTON can access the HR schema in DENVER?
