单项选择题

WhichstepdoyouneedtoperformtoenableauserwiththeSYSDBApr……

Which step do you need to perform to enable a user with the SYSDBA privilege to log in as SYSDBA in iSQL*Plus？（）

A.The user must be granted the database administrator （DBA） privilege.
B.The user must be listed in the password file for the authentication.
C.No special setup is needed for the user to connect as SYSDBA in iSQL*Plus.
D.Set up a user in the Oracle Application Server Containers for J2EE （OC4J） user manager，and grant the webDba role to the user.

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热门试题

单项选择题Accordingtoyourbackupstrategy，youperformedanincrementallevel0backupofyourdatabase.Whichstatementregardingthisbackupistrue？（）

A.The backup is similar to image copy.
B.The backup contains all used data blocks.
C.The backup contains only unused data blocks.
D.The backup contains all data blocks changed since the last incremental level 1 backup.

单项选择题WhichstatementregardingthecontentsoftheV$PARAMETERviewistrue？（）

A.displays only the list of default values
B.displays only the list of all basic parameters
C.displays the currently in effect parameter values
D.displays only the list of all advanced parameters
E.displays the list of all the parameter files of a database

多项选择题Whichthreestatementsarecorrectabouttemporarytables？（）

A.Indexes and views can be created on temporary tables.
B.Both the data and the structure of temporary tables can be exported.
C.Temporary tables are always created in a user’s temporary tablespace.
D.The data inserted into a temporary table in a session is available to other sessions.
E.Data manipulation language （DML） locks are never acquired on the data of temporary tables.

单项选择题TheUNDO_RETENTIONparameterinyourdatabaseissetto1000andundoretentionisnotguaranteed.Whichstatementregardingretentionofundodataiscorrect？（）

A.Undo data becomes obsolete after 1，000 seconds.
B.Undo data gets refreshed after every 1，000 seconds.
C.Undo data will be stored permanently after 1，000 seconds.
D.Committed undo data would be retained for 1，000 seconds if free undo space is available.
E.Undo data will be retained in the UNDO tablespace for 1，000 seconds，then it gets moved to the TEMPORARY tablespace to provide read consistency.

单项选择题YoureceivedcomplaintsaboutthedegradationofSQLqueryperformance.YouidentifiedtopSQLqueriesthatconsumetime.WhatwouldbeyournextsteptofindoutrecommendationsaboutstatisticscollectionandrestructuringoftheSQLstatementtoimprovequeryperformance？（）

A.run Segment Advisor
B.run SQL Tuning Advisor on top SQL statements
C.run the Automatic Workload Repository （AWR） report
D.run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements