知识大全 1z0-001 Braindump 2002.02.16

Posted 2022-07-16 文字

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　　 SCOTT FORGOT HIS PASSWORD WHILE ON VACATION WHICH MAND MUST BE EXECUTED TO SET A PASSWORD FOR SCOTT 　　　　A DBA MUST EXECUTE THE MAND ALTER USER SCOTT IDENTIFIED BY LION 　　　　 YOU ARE UPDATING THE EMPLOYEE TABLE JANE HAS BEEN GRANTED THE SAME PRIVILAGES AS YOU ON THE EMPLOYEE TABLE YOU ASK JANE TO LOG ON TO THE DATABASE TO CHECK YOUR WORD BEFORE YOU ISSUE THE MIT MAND WHAT CAN SHE DO TO THE EMPLOYEE TABLE 　　　　A JANE CAN ACCESS THE TABLE BUT SHE CAN NOT SEE YOU CHANGES AND CAN NOT MAKE THE CHANGES TO THE ROLES THAT YOU ARE CHANGING 　　　　 EXAMINE THE STRUCTURE OF THE STUDENT TABLE 　　　　NAME NULL TYPE 　　　　STUD_ID NOT NULL NUMBER( ) 　　NAME NOT NULL VARCHAR ( ) 　　ADDRESS VARCHAR ( ) 　　GRADUATION DATE 　　WHICH STATEMENT INSERT A NEW ROW INTO THE STUDENT TABLE ? 　　　　A INSERT INTO STUDENT (STUD_ID ADDRESS NAME GRADUATION) VALUES ( ? MAIN STREET? 慡MITH? ? JAN ?; 　　　　 EXAMINE THE STRURE OF THE STUDENT TABLE 　　GRADUATION COLUMN IS A FORIGN KEY COLUMN TO THE GRADUATE TABLE EXAMINE THE DATA IN THE GRAD_DATE_TABLE 　　　　GRADUATION JAN 　　 MAY 　　 JAN 　　 JAN 　　 JAN 　　 JAN 　　　　WHICH UPDATE STATEMENT PRODUCES THE FOLLOWING ERROR 　　　　ORA INTEGRITY CONSTRAINT (SYS C ) VIOLDATED PARENT 　　KEY NOT FOUND 　　　　A UPDATE STUDENT SET NAME = 慡MITH? GRADUATION = ? AUG ?　　WHERE STUD ID = 　　　　　　 THE VIEW EMP VIEW IS CREATED BASED ON THE EMP TABLE AS FOLLOWS 　　　　CREATE OF REPLACE VIEW EMP_VIEW AS 　　SELECT DEPTNO SUM(SAL) TOT_SAL COUNT(*) NOT_EMP FROM EMP 　　GROUP BY DEPTNO; 　　　　WHAT HAPPENS WHEN THIS MAND IS USED ? 　　　　UPDATE EMP_VIEW SET TOT_SAL = WHERE DEPTNO = ; 　　　　ANS THE BASE TABLE CANNOT BE UPDATED THROUGH THIS VIEW 　　　　 YOU HAVE A VIEW CALLED ANN_SAL THAT IS BASED ON THE EMPLOYEE TABLE STRUCTURE ON THE ANN SAL VIEW IS 　　　　NAME NULL TYPE 　　　　EMPNO NOTNULL NUMBER( ) 　　YEARLY_SAL NUMBER( ) 　　MONTHL_SAL NUMBER( ) 　　　　WHICH STATEMENT RETRIVES ALL DATA FROM ANN_SAL VIEW ? 　　　　ANS SELECT * FROM ANN_SAL; 　　　　 EVALUATE THIS IF STATEMENT 　　　　IF V_VALUE > THEN 　　V_NEW_VALUE := * V_VALUE 　　ELSEIF V_VALUE > THEN 　　V_NEW_VALUE := * V_VALUE 　　ELSEIF V_VALUE > THEN 　　V_NEW_VALUE := * V_VALUE 　　ELSE 　　V_NEW_VALUE := * V_VALUE 　　ENDIF; 　　　　WHAT VALUE BE ASSIGNED TO V_NEW_VALUE IF V_VALUE = : 　　　　ANS: 　　　　　　　　 THE PLAYER TABLE CONTAINTS THESE COLUMNS 　　　　ID NUMBER( ) 　　NAME VARCHAR( ) 　　MANAGERID NUMBER( ) 　　　　IN THIS INSTANCE MANAGER ARE PLAYER AND YOU NEED TO DISPLAY A LIST OF PLAYERS EVALUATE THESE SQL STATEMENT 　　　　SELECT P NAME M NAME FROM PLAYER P PLAYER M 　　WHERE M ID = P MANAGERID; 　　　　SELECT P NAME M NAME FROM PLAYER P PLAYER M 　　WHERE M MANAGERID = P ID 　　　　HOW WOULD THE RESULT DIFFER 　　　　ANS: THE RESULT WILL BE SAME BUT DISPLAY WILL BE DIFFERENT 　　　　 HOW WOULD YOU DECLARE A PLSQL TABLE OF RECORDS TO HOLD THE ROWS SELECTED FROM THE EMP TABLE? 　　　　DECLARE 　　TYPE EMP_TABLE IS TABLE OF EMP%ROWTYPE 　　INDEX BY BINARY INTEGER E 　　EMP_TABLE EMP_TABLE_TYPE; 　　　　YOU WANT TO CREATE A CURSOR THAT CAN BE USED SEVERAL TIMES IN A BLOCK SELECTING A DIFFERENT ACTIVE SET EACH TIME THAT IT IS OPENED WHICH TYPE OF CURSOR DO YOU CREATE 　　　　ANS: A CURSOR THAT USE PARAMETERS 　　　　 WHICH STATEMENT IS TRUE WHEN WRITING A CURSOR FOR LOOP ? 　　　　ANS: YOU DO NOT EXPLICITY OPEN FETCH OR CLOSE A CURSOR WITHIN A CURSOR FOR LOOP 　　　　　　　　 THE STRUCTURE OF THE DEPT TABLE 　　　　NAME NULL TYPE 　　　　DEPTNO NOTNULL NUMBER( ) 　　DNAME VARCHAR ( ) 　　LOC VARCHAR ( ) 　　　　EXAMINE THE CODE 　　　　DECLARE 　　DEPT_REC DEPT%ROWTYPE 　　　　BEGIN 　　SELECT * INTO DEPT_REC FROM DEPT WHERE DEPTNO = ; 　　END 　　　　WHICH PL/SQL STATEMENT DISPLAYS THE LOCATION OF SELECTED DEPARTMENT 　　　　ANS: DBMS_OUTPUT PUT_LINE(DEPT_REC_LOC); 　　　　 WHICH STATEMENT ABOUT IMPLICT CURSOR IS TRUE ? 　　　　IMPLICT CURSORT ARE DECLARED IMPLICITY FOR ALL THE DML AND SELECT STATEMENTS 　　　　 EVALUATE THIS PL/SQL BLOCK 　　　　DECLARE 　　V_RESULT NUMBER( ) 　　BEGIN 　　DELETE FROM EMPLOYEE WHERE DEP_ID IN( ); 　　V_RESULT:= SQL%ROWCOUNT; 　　MIT 　　END; 　　　　WHAT WILL BE THE VALUE OF V_RESULT IF NO ROWS ARE DELETED; 　　　　ANS: ZERO 　　　　 WHICH O CONDITIONS IN A PL/SQL BLOCK CAUSE AN EXCEPTION ERROR TO OCCUR ? CHOOSE O 　　　　ANS: SELECT STATEMENT DOES NOT RETURN A ROW 　　SELECT STATEMENT RETURNS MORE THAN ONE ROW 　　　　　　 YOU NEED TO CREATE A PL/SQL PROGRAME TO INSERT RECORD INTO EMPLOYEE TABLE WHICH BLCOK OF CODE SUCCESSFULLY USES THE INSERT MAND 　　　　ANS: 　　　　DECLARE 　　V_HIREDAT DATE:= SYSDATE; 　　BEGIN 　　INSERT INTO EMP (EMPNO ENAME HIREDATE) 　　VALUES (EMPNO_SEQUENCE NEXTVAL ?NAME?V_HIREDATE &DEPTNO); 　　END; 　　　　EVALUATE THIS PL/SQL BLOCK 　　　　 EVALUATE THIS PL/SQL BLOCK 　　　　BEGIN 　　FOR I IN LOOP 　　IF I= OR I= THEN NULL; 　　ELSE 　　INSERT INTO TEST(RESULT) VALUES( ); 　　END; 　　MIT; 　　END LOOP; 　　ROLL BACK; 　　END; 　　　　HOW MANY VALUES WILL BE INSERTED INTO THE TEST TABLE ? 　　　　ANS: 　　　　 YOU ISSUE MAND 　　　　CREATE PUBLIC SYNONYM EMP FOR ED_EMPLOYEE 　　　　WHICH TASK HAS BEEN ACPLISHED? 　　　　ANS: THE NEED TO QUALIFY THE OBJECT VALUE WITH ITS SCHEME IS ELIMINATED FOR ALL USERS 　　　　 IN WHICH ORDER DOES THE ORACLE SERVER EVALUATE CLAUSES? 　　　　WHERE GROUP BY HAVING 　　　　　　 YOU ATTEMPT TO QUERY TO THE DATABASE WITH MAND 　　　　SELELECT DEPT_NO AVG(MONTHS_BEEEN(SYSDATE HIRE_DATE)) 　　FROM EMPLOYEE 　　WHERE AVG(MONTHS_BEEENS(SYSDATE HIRE_DATE))> 　　GROUP BY DEPT_NO 　　ORDER BY AVG(MONTHS_BEEEN(SYSDATE HIRE)DATE) 　　　　WHY DOES THIS STATEMENT CAUSE AN ERROR ? 　　　　ANS: A WHERE CLAUSE CAN NOT BE USED TO RESTRICT GRUPS 　　　　　　 THE PATH TABLE CONTAINS THESE COLUMNS 　　　　ID NUMBER( ) PK 　　COST NUMBER( ) 　　PRODUCT_ID NUMBER( ) 　　　　EVALUATE THESE SQL STATEMENT 　　　　SELECT ROUND(MAX(COST) ) 　　ROUND(MIN(COST) ) 　　ROUND(SUM(COST) ) 　　ROUND(AVG(COST) ) FROM PART; 　　　　SELECT PRODUCT_ID ROUND(MAX(COST) ) 　　ROUND(MIN(COST) ) 　　ROUND(SUM(COST) ) 　　ROUND(AVG(COST) ) FROM PART 　　GROUP BY PRODUCT_ID; 　　　　HOW WILL THE RESULT DIFFER 　　　　ANS: STATEMENT WILL ONLY DISPLAY ONE ROW OF RESULTS 　　STATEMENT CAN DISPLAY MORE THAN ONE 　　　　 IN WHICH SELECTION OF A PL/SQL BLOCK IS A USER DEFINED EXCEPTION RAISED? 　　　　EXECUTABLE 　　　　　　 EXAMINE THE CODE 　　　　SET SERVER OUTPUT ON 　　DECLARE 　　V_CHAR_VAL VARCHAR ( ); 　　BEGIN 　　V_CHAR_VAL := 慔ELLO WORLD? 　　DBMS_OUTPUT PUT_LINE (V_CHAR_VAL); 　　END 　　SET SERVER OUTPUT OFF 　　　　THIS CODE IS STORED IN A SCRIPT TITLE NAME 惭YPROC SQL?WHICH STATEMENT cha138/Article/program/Oracle/201311/17157