On your Oracle 12c database, you Issue the following commands to create indexesSQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE;SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id

题目

On your Oracle 12c database, you Issue the following commands to create indexesSQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE;SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id);Which two statement are correct?（）

A. Both the indexes are created; however, only the ORD_COSTOMER index is visible.

B. The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.

C. Only the ORD_CUSTOMER_IX1 index is created.

D. Only the ORD_CUSTOMER_IX2 index is created.

E. Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.

相似考题

1.You’re going to have a quiz ( )by another two in the ( )month.A. followed,followedB. followed,followingC. following,followedD. following,following

2.Merry Christmas, George! Here is a card for ________, with ________ best withes.A.you…yourB.you…ourC.us…ourD.us…your

3.Viewthisparametersettinginyourdatabase：DB_CREATE_FILE_DEST=’D：\oracle\product\10.2.0\oradata\oracle’Youcreatedatablespacebyusingthiscommand：CREATETABLESPACEUSERS；WhichtwostatementsaretrueabouttheUSERStablespace？（）A.Thetablespacehastwodatafiles.B.Anerrorisreportedandtablespacecreationfails.C.Datafilesarecreatedwithnamesgeneratedbytheinstance.D.Thetablespacecanbeextendedwithoutspecifyingthedatafile.E.DatafilesbelongingtotheUSERStablespacecannotberenamed.

4.What's ( )job? Are ( ) British?A. your, yourB. you, yourC. your, you

更多“On your Oracle 12c database, you Issue the following commands to create indexesSQL > CR ”相关问题

  • 第1题：

    Youhavecontrol-fileautobackupsenabled.WhenstartingyourdatabasefromSQL*Plus，youreceivethefollowingerrormessage：SQL>startupORA-01078：failureinprocessingsystemparametersLRM-00109：couldnotopenparameterfile，C：\ORACLE\PRODUCT\11.1.0\DB_1\DATABASE\INITORCL.ORAUsingRMAN，howwouldyourespondtothiserror？（）

    A.Issuethestartupnomountcommandandthenissuetherestoreparameterfilecommandfromthe RMANprompt.

    B.IssuethestartupnomountcommandandthenissuetherestorespfilecommandfromtheRMANprompt.

    C.Issuethestartupnomountcommandandthenissuetherestorespfilefromautobackupcommand fromtheRMANprompt.

    D.Issuethestartupnomountcommandandthenissuetherestorespfilefrombackupcommand from theRMANprompt.

    E.IssuetherestorespfilefromautobackupcommandfromtheRMANprompt.


    参考答案：C

  • 第2题：

    Oracle密码允许包含像“SELECT”，“DELETE”，“CREATE”这类的Oracle/SQL关键字。()


    答案：错误

  • 第3题：

    当启动一个Oracle实例时,初始化参数()指出为数据文件信息保留的SGA空间的数量。

    A.DB_FILES

    B.DB_DATAFILES

    C.DATABASE_FILES

    D.LOG_FILES


    参考答案：A

  • 第4题：

    有以下程序：

    当执行程序时，按下列方式输入数据（从第l列开始，<；CR>；代表回车，注意：回车也是一个字符]12<；CR>；34<；CR>；则输出结果是（ ）。

    A.12

    B.123

    C.1234

    D.12343


    正确答案：D
    按照从键盘输入的数据可以_判断字符l给了变量a，字符2给了变量b，字符<CR>即回车给了变量c，字符3给了变量d。所以打印输出的结果为D选项。

  • 第5题：

    ORACLE初始化参数文件的默认路径是:()

    A.对于UNIX，在$ORACLE_HOME/dbs

    B.对于UNIX，在$ORACLE_HOME/dbs/admin

    C.对于Linux，在%ORACLE_HOME%\database

    D.对于Windows，在%ORACLE_HOME%\dbs

    E.对于Windows，在%ORACLE_HOME%\database\admin


    参考答案：A

  • 第6题：

    （ ） – Is Miss White __________ English teacher, Maria?

    – No, she teaches __________ geography.

    A．your；my

    B．you；mine

    C．you；us

    D．your；us


    正确答案：D

相关内容