A. From the Advisor Central home page, select the tuning task from the Advisor Tasks section.
B. From Advisor Central, choose SQL Advisors, SQL Tuning Advisors, Manual Tuning Task Results.
C. From Advisor Central, choose SQL Advisors, Manual SQL Tuning Advisors, Tuning Task Results.
D. Either B or C
第1题:
A new report process containing a complex query is written, with high impact on the database. You wantto collect basic statistics about query, such as the level of parallelism, total database time, and the number of I/O requests.For the database instance STATISTICS_LEVEL, the initialization parameter is set to TYPICAL and theCONTROL_MANAGEMENT_PACK_ACCESS parameter is set to DIAGNOSTIC+TUNING.What should you do to accomplish this task?()
A. Execute the query and view Active Session History (ASH) for information about the query.
B. Enable SQL trace for the query.
C. Create a database operation, execute the query, and use the DBMS_SQL_MONITOR. REPORT_SQL_MONITOR function to view the report.
D. Use the DBMS_APPLICATION_INFO.SET_SESSION_LONGOPS procedure to monitor query execution and view the information from the V$SESSION_LONGOPS view.
第2题:
(36)为了考虑安全性,每个部门的领导只能存取本部门员工的档案,为此DBA 应创建相应的
A)表( table)
B)索引(index)
C)视图( view)
D)游标(cursor )
第3题:
(23 )为了提高查询速度,则 DBA 应创建相应的
A )视图( View )
B )索引( Index )
C) 游标( Cursor )
D) 基本表( Table )
第4题:
A.exec函数
B.SET
C.COMMIT
D.TAKE
第5题:
( 22 )如果只允许学生查看自己所选课程的信息和分数,则 DBA 应创建相应的
A )视图( View )
B )索引( Index )
C) 游标( Cursor )
D )基本表( Table )
第6题:
在ggplot2中,自定义散点图中点的颜色所用的命令为()
A.scale_colour_manual()
B.scale_linetype_manual()
C.scale_shape_manual()
D.scale_size_manual()