单选题A number of applications issue the following SQL statement:SELECT d.deptno, e.empno, e.salary FROM department d INNER JOIN employee e ON d.deptno = e.deptnoA database administrator wishes to store this query within the database. Which of the following database objects can be used to accomplish this?()AAliasBViewCSchemaDTrigger

单选题
A number of applications issue the following SQL statement:SELECT d.deptno, e.empno, e.salary FROM department d INNER JOIN employee e ON d.deptno = e.deptnoA database administrator wishes to store this query within the database. Which of the following database objects can be used to accomplish this?()
A

Alias

B

View

C

Schema

D

Trigger


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View the Exhibit for some of the current parameter settings. A user logs in to the HR schema and issues the following commands:SQL CREATE TABLE emp(empno NUMBER(3),ename VARCHAR2(20),sal NUMBER(8,2));SQL INSERT INTO emp(empno,ename) VALUES(1,‘JAMES‘);At this moment, a second user also logs in to the HR schema and issues the following command:SQL ALTER TABLE emp MODIFY sal NUMBER(10,2);What happens in the above scenario?()A. The second user‘s session immediately produces the resource busy error.B. The second user‘s command executes successfully.C. The second user‘s session waits for a time period before producing the resource busy error.D. A deadlock is created.

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单选题Which of the following identifies and creates an index to minimize the DB time for a particular SQL statement?()AThe SGA Tuning AdvisorBThe SQL Access AdvisorCThe SQL Tuning AdvisorDThe Memory Advisor

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单选题You issue this statement:ALTER DATABASE BACKUP CONTROLFILE TO TRACE;  What does the statement generate?()AA text copy of the control file.BA binary copy of the control file.CA file containing a SQL statement which will re-create the database.DA file containing a SQL statement which will re-create the control file.

单选题You created the ORDERS table in your database by using the following code:   SQL CREATE TABLE ORDERS (ORDER_DATE TIMESTAMP(0) WITH TIME ZONE);   Then, you inserted data in the ORDERS table and saved it by issuing the following statements:SQL INSERT INTO ORDERS VALUES(’18-AUG-00 10:26:44 PM America/New_York’);   SQL INSERT INTO ORDERS VALUES(’23-AUG-02 12:46:34 PM America/New_York’);   SQL COMMIT;   Next, you issued the following statement to change the time zone for the database:   SQL ALTER DATABASE SET TIME_ZONE=’Europe/London’;   What will be the result of executing the above statement?()A The statement will fail.B The statement will be executed successfully, and the new time zone will be set for the database.C The statement will be executed successfully, but the new time zone will be set for the current session.DThe statement will be executed successfully, but the new time zone will neither be set for the database nor for a specific session.

单选题The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement? ()AThe results are not sorted.BThe results are sorted numerically.CThe results are sorted alphabetically.DThe results are sorted numerically and then alphabetically.

多选题Which of the following cannot be used as input to the SQL Tuning Advisor?() (Choose all that apply.)AA single SQL statement provided by a userBAn existing SQL Tuning Set (STS)CA preprocessed Database Replay workloadDA schema nameESQL statement identified in EM as using excessive resources

多选题From SQL*Plus, you issue this SELECT statement: SELECT* FROM order; You use this statement to retrieve data from a data table for ().AUpdatingBViewingCDeletingDInsertingETruncating

多选题Which of the following cannot be used as input to the SQL Tuning Advisor?()AA single SQL statement provided by a userBAn existing SQL Tuning Set (STS)CA preprocessed Database Replay workloadDA schema nameESQL statement identified in EM as using excessive resources