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Evaluatethefollowingcode:SQL>VARIABLEtask_nameVARCHAR2(255);SQL>VARIABLEsql_stmtVARCHAR2(4000);SQL>BEGIN:sql_stmt:=’SELECTCOUNT(*)FROMcustomersWHEREcust_state_province=’’CA’’’;:task_name:=’MY_QUICKTUNE_TASK’;DBMS_ADVISOR.QUICK_TUNE(DBMS_ADVISOR.SQLACCESS_ADVISOR,:task_name,:sql_stmt);END;Whatistheoutcomeofthisblockofcode?()

A.Itcreatesataskandworkload,andexecutesthetask.

B.Itcreatesataskandworkloadbutdoesnotexecutethetask.

C.Itproducesanerrorbecauseatemplatehasnotbeencreated.

D.ItproducesanerrorbecausetheSQLTuningSethasnotbeencreated.


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更多 “ Evaluatethefollowingcode:SQLVARIABLEtask_nameVARCHAR2(255);SQLVARIABLEsql_stmtVARCHAR2(4000);SQLBEGIN:sql_stmt:=’SELECTCOUNT(*)FROMcustomersWHEREcust_state_province=’’CA’’’;:task_name:=’MY_QUICKTUNE_TASK’;DBMS_ADVISOR.QUICK_TUNE(DBMS_ADVISOR.SQLACCESS_ADVISOR,:task_name,:sql_stmt);END;Whatistheoutcomeofthisblockofcode?()A.Itcreatesataskandworkload,andexecutesthetask.B.Itcreatesataskandworkloadbutdoesnotexecutethetask.C.Itproducesanerrorbecauseatemplatehasnotbeencreated.D.ItproducesanerrorbecausetheSQLTuningSethasnotbeencreated. ” 相关考题
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