1z1-071證照信息 & 1z1-071最新考古題

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>> 1z1-071證照信息 <<

有用的1z1-071證照信息和資格考試中的領先提供者和一流的1z1-071最新考古題

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最新的 Oracle PL/SQL Developer Certified Associate 1z1-071 免費考試真題 (Q49-Q54):

問題 #49
Which two statements are true regarding savepoints? (Choose two.)

A. Savepoints can be used for both DML and DDL statements.
B. Savepoints can be used for only DML statements.
C. Savepoints are effective only for COMMIT.
D. Savepoints are effective for both COMMITand ROLLBACK.
E. Savepoints may be used to ROLLBACK.

答案：B,E

解題說明：
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_10001.htm#SQLRF01701

問題 #50
Examine the commands used to create the DEPARTMENT_DETAILS and the COURSE-DETAILS tables:
SQL> CREATE TABLE DEPARTMfiNT_DETAILS
DEPARTMENT_ID NUMBER PRIMARY KEY ,
DEPARTMEHT_NAME VARCHAR2(50) ,
HOD VARCHAP2(50));
SQL> CREATE TABLE COURSE-DETAILS
(COURSE ID NUMBER PRIMARY KEY ,
COURS_NAME VARCHAR2 (50) ,
DEPARTMEHT_ID NUMBER REFERENCES DEPARTMENT_DETAIL
You want to generate a list of all department IDs along with any course IDs that may have been assigned to them.
Which SQL statement must you use?

A. SELECT d.departranc_id, c.cours<<_id FROM cource_deatils c LEFT OUTER JOIN departmnt_details d ON (c.dapartmsnt_id=d.departtnent_id);
B. SELECT d.department id. ccours_id FROM department_details d RIGHT OUTER JOIN course_details c ON (d.department_id);
C. SELECT d.department_id, c.course_id FROM department_details d LEFT OUTER JOIN course_details c ON (d.department___id).- (DEPARTMENT_ID) ;
D. SELECT d.department_id, c. course_id FROM dapartment_details d RIGHT OUTER JOIN course_dotails c ON (c.depattnient_id=d.department_id) ;

答案：C

問題 #51
Examine the data in the EMPLOYEEStable.

Which statement will compute the total annual compensation for each employee?
SELECT last_name, (monthly_salary * 12) + (monthly_salary * 12 *

A. annual_comp
FROM employees;
SELECT last_name, (monthly_salary * 12) + (monthly_commission_pct * 12) AS
B. annual_comp
FROM employees;
SELECT last_name, (monthly_salary * 12) + (monthly_salary * 12 * NVL
C. (monthly_commission_pct, 0)) AS annual_comp
FROM employees;
D. monthly_commission_pct) AS annual_comp
FROM employees;
SELECT last_name, (monthly_salary + monthly_commission_pct) * 12 AS

答案：D

問題 #52
Examine the ORDER _ITEms table:

Which two queries return rows where QUANTITY is a multiple of ten?

A. SELECT FROM order_ items WHERE quantity / 10 = TRUNC (quantity);
B. SELECT * FROM order_ items WHERE MOD (quantity, 10) = 0;
C. SELECT" FROM order_ items WHERE FLOOR (quantity / 10) = TRUNC (quantity / 10);
D. SELECT * FROM order_ items WHERE quantity = TRUNC (quantity, -1);
E. SELECT" FROM order_ _items WHERE quantity = ROUND (quantity, 1);

答案：B,C

解題說明：
A: This statement will not work because TRUNC(quantity, -1) will truncate the quantity to zero decimal places when the number is a negative power of ten, which does not guarantee that the quantity is a multiple of ten.
B: This statement is correct. The MOD function returns the remainder of a division. If MOD(quantity, 10) equals zero, it means that quantity is a multiple of ten.
C: This statement is correct. FLOOR(quantity / 10) equals TRUNC(quantity / 10) when quantity is an exact multiple of ten, as FLOOR returns the largest integer less than or equal to a number, and TRUNC will truncate the decimal part.
D: This statement is incorrect because TRUNC(quantity) would remove any decimal places from quantity, and comparing it to quantity / 10 will not guarantee that the quantity is a multiple of ten.
E: This statement is incorrect. ROUND(quantity, 1) will round the quantity to one decimal place, not check if it's a multiple of ten.

問題 #53
You must create a table EMPLOYEES in which the values in the columns EMPLOYEES_ID and LOGIN_ID must be unique and not null. (Choose two.) Which two SQL statements would create the required table?

A. CREATE TABLE employees(employee_id NUMBER CONSTRAINT emp_id_pk PRIMARY KEY, Login_id NUMBER UNIQUE, Employee_name VARCHAR2(25),Hire_date DATE);
B. CREATE TABLE employees(employee_id NUMBER,Login_id NUMBER,Employee_name VARCHAR2(100),Hire_date DATE,CONSTRAINT emp_id_uk UNIQUE (employee_id, login_id);CONSTRAINT emp_id_nn NOT NULL (employee_id, login_id));
C. CREATE TABLE employees(employee_id NUMBER,login_id NUMBER,employee_name VARCHAR2(25),hire_date DATE,CONSTRAINT emp_id_pk PRIMARY KEY (employee_id, login_id));
D. CREATE TABLE employees(employee_id NUMBER,Login_id NUMBER,Employee_name VARCHAR2(100),Hire_date DATE,CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));
E. CREATE TABLE employees(employee_id NUMBER CONSTRAINT emp_id_nn NOT NULL, Login_id NUMBER CONSTRAINT login_id_nn NOT NULL,Employee_name VARCHAR2(100),Hire_date DATE,CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));

答案：C,E

問題 #54
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1z1-071最新考古題: https://tw.fast2test.com/1z1-071-premium-file.html