During a query’s parse time only.
During a query’s execution time only.
During any kind of DML statement execution.
During the execution of an INSERT statement only.
第1题:
Mum: Let's go to the seaside some time during the weekend.
Daughter: Great. What time?
Mum: ______
A、Are you ready?
B、You name it.
C、During the weekend.
D、Take your time.
第2题:
You work as a database administrator for Certkiller .com. In your database server, the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve?()
第3题:
View the Exhibit for some of the parameter settings. You start a session and issue the following command:SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;What is the outcome of the above command?()
A. The index is not used by the optimizer but is maintained during DML operations.
B. The index is not used by the optimizer and is not maintained during DML operations.
C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.
D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
第4题:
You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature? ()
第5题:
You have enabled resumable space allocation in your database by setting the RESUMABLE_TIMEOUT parameter set to a nonzero value.Which three statements about resumable space allocation are true? ()
第6题:
第7题:
You are using the Database Resource Manager to manage database resources. You created a resource plan directive for the MANAGERS resource consumer group under the SALES_PLAN by using the following statement: SQL>EXEC DBMS_RESOURCE_MANAGER.CREATE_PLAN_DIRECTIVE (PLAN => ’SALES_PLAN’, GROUP_OR_SUBPLAN => ’MANAGERS’, CPU_P1 => 100, CPU_P2 =>0, SWITCH_GROUP => ’CLERKS’, SWITCH_TIME_IN_CALL => 600); A user, SCOTT, who is assigned to the MANAGERS group, starts a database session and executes a query on the database. What is the outcome if the query takes approximately 15 minutes to complete?()
第8题:
You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
A.Every SQL statement in the STS is considered only once for execution
B.The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics
C.The execution plan and execution statistics are computed for each SQL statement in the STS
D.The effects of DDL and DML are considered to produce the execution plan and execution statistics
第9题:
You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?()
第10题:
You issued the following statement to monitor the usage of the index: SQL> ALTER INDEX SCOTT.EMP_IDX MONITORING USAGE; Which view will you query to ensure that the index is being monitored?()