1z0-045 Training
1z0-045 Exam
oracle database 10g:new features for oracle8i ocps
Exam Number/Code : 1z0-045
Exam Name : oracle database 10g:new features for oracle8i ocps
Questions and Answers : 211 Q&As
Update Time: 2010-08-23
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1. Consider this syntax:
MERGE INTO t1
USING t2 ON (join predicate)..
What does the MERGE syntax do?
A.It performs a merge join of the row from T2 only if it doesn’t exist in the T1 table.
B.It creates a natural join of tables T1 and T2 for all columns that have the same name.
C.It creates a Cartesian product of table T1 and table T2 for all columns that have the same name.
D.For each row from T2, it updates the row if it exists within table T1, otherwise it inserts the row into T1.
Answer: D
2. After changing the PCTFREE value of the automatic space management table EMPLOYEES, which task can you perform in order for your change to take effect immediately?
B.Execute the command ANALYZE TABLE employees COMPUTE STATISTICS.
C.Execute the command DBMS_STATS.GATHER_TABLE_STATISTICS on the EMPLOYEES table.
D.Execute the DBMS_REPAIR.SEGMENT_FIX_STATUS procedure on the EMPLOYEES table.
Answer: D
3. Your Data Guard architecture consists of one primary database and one standby database, both located on the same machine. What is the minimum that you need in order to use the command-line interface of the Oracle 10g Data Guard Manager tool to monitor your Data Guard architecture?
A.only one Data Guard Monitor (DMON)
B.only the Oracle Management Server (OMS)
C.two Data Guard Monitors, one for each instance
D.one Data Guard Monitor and one Oracle Management Server
Answer: C
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