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Which two statements about Database Express are true?
http://www.oracle.com/technetwork/database/manageability/emx-intro-1970113.html
Your customer is looking for a solution to address these downtime needs:
- Online addition and removal of disks should automatically rebalance data across new storage configurations while storage, database, and applications remain online.
- Dynamically add or remove clustered nodes without disrupting the database or applications.
- Automate the sizing and distribution of shared memory.
- Add a column with a default value without disrupting the database or applications.
- Perform rolling patch upgrades.
Which four would you recommend to address those needs?
Which two statements about switchover and failover are true?
In Oracle Database 12c, when does a transaction begin?
Examine the command below:
BEGIN DBMS_REDACT.ADD_POLICY(
object_schema => 'mavis',
object_name => 'cust_info',
column_name => 'emp_id',
policy_name => 'redact_cust_ids',
function_type => DBMS_REDACT.REGEXP,
expression => '1=1',
regexp_pattern => '(\d\d\d)(\d\d)(\d\d\d\d)',
regexp_replace_string => 'XXXXX\3',
regexp_position => 1,
regexp_occurrence => 0,
regexp_match_parameter => 'i',
policy_description => 'Redacts customer IDs',
column_description => 'emp_id contains employee ID numbers');
END;
/
What do the regexp_pattern and regexp_replace_string parameters accomplish?
