Database Reference
In-Depth Information
7.
Users notify you that their application is failing every time they try to add new records.
Because of poor application design, the actual ORA error message is unavailable. What
might be the problem? (Choose the best answers.)
A.
The application user has exceeded their undo quota.
B.
The
FLASHBACK GUARANTEE
option is set on the undo tablespace.
C.
The table is currently being queried by a Flashback Transaction Query operation.
D.
The table is currently being queried by a Flashback Version Query operation.
E.
The
RETENTION GUARANTEE
option is set on the undo tablespace.
F.
The application was coded by an idiot.
8.
Which of the following statements best describes Flashback Version Query?
A.
Flashback Version Query is used to make changes to multiple versions of data that
existed between two points in time.
B.
Flashback Version Query is used to view all version changes on rows that existed
between the time the query was executed and a point in time in the past.
C.
Flashback Version Query is used to view version changes and the SQL to undo
those changes on rows that existed between two points in time.
D.
Flashback Version Query is used to view all version changes on rows that existed
between two points in time.
9.
Which pseudocolumn could you use to identify a unique row in a Flashback
Version Query?
A.
XID
B.
VERSIONS_PK
C.
VERSIONS_XID
D.
VERSIONS_UNIQUE
10.
Which of the following can be used in conjunction with a Flashback Version Query to
filter the results? (Choose all that apply.)
A.
A range of SCN values
B.
A list of SCN values
C.
Starting and ending timestamps
D.
Minimum and maximum sequence values
E.
A list of sequence values
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