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Oracle 1z1-071 certification exam consists of 73 multiple-choice questions, and the candidates have 105 minutes to complete the exam. 1z0-071 exam covers various topics, including data manipulation, data definition, data control, and transactions. 1z0-071 Exam also covers SQL functions, expressions, and operators, as well as basic SQL programming concepts, such as joins, subqueries, and set operators.

Oracle Database SQL Sample Questions (Q106-Q111):

NEW QUESTION # 106
Which three are true about the MERGEstatement? (Choose three.)

A. It can merge rows only from tables.
B. It can combine rows from multiple tables conditionally to insert into a single table.
C. It can use subqueries to produce source rows.
D. It can update, insert, or delete rows conditionally in multiple tables.
E. It can use views to produce source rows.
F. It can update the same row of the target table multiple times.

Answer: C,D,E

Explanation:
Explanation/Reference: https://www.oracletutorial.com/oracle-basics/oracle-merge/

NEW QUESTION # 107
View the exhibit and examine the structure of the SALES, CUSTOMERS, PRODUCTSand TIMEStables.

The PROD_IDcolumn is the foreign key in the SALEStable referencing the PRODUCTStable.
The CUST_IDand TIME_IDcolumns are also foreign keys in the SALEStable referencing the CUSTOMERS and TIMEStables, respectively.
Examine this command:
CREATE TABLE new_sales (prod_id, cust_id, order_date DEFAULT SYSDATE)
AS
SELECT prod_id, cust_id, time_id
FROM sales;
Which statement is true?

A. The NEW_SALEStable would get created and all the FOREIGNKEYconstraints defined on the selected columns from the SALES table would be created on the corresponding columns in the NEW_SALES table.
B. The NEW_SALEStable would not get created because the column names in the CREATETABLE command and the SELECTclause do not match.
C. The NEW_SALEStable would not get created because the DEFAULTvalue cannot be specified in the column definition.
D. The NEW_SALEStable would get created and all the NOTNULLconstraints defined on the selected columns from the SALES table would be created on the corresponding columns in the NEW_SALES table.

Answer: D

NEW QUESTION # 108
Which two will execute successfully? (Choose two.)

A. SELECT COALESCE('DATE', SYSDATE) FROM (SELECT NULL AS "DATE" FROM DUAL);
B. SELECT COALESCE('DATE', SYSDATE) FROM DUAL;
C. SELECT COALESCE(0, SYSDATE) FROM DUAL;
D. SELECT NVL('DATE', SYSDATE) FROM DUAL;
E. SELECT NVL('DATE', 200) FROM (SELECT NULL AS "DATE" FROM DUAL);

Answer: A,C

NEW QUESTION # 109
Examine the structure of the EMPLOYEES table.
You must display the details of employees who have manager with MANAGER_ID 100, who were hired in the past 6 months and who have salaries greater than 10000.
Which query would retrieve the required result?

A. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = 100)UNION ALL(SELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000);
B. (SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100))UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;
C. SELECT last_name, hire_date, salaryFROM employeesWHERE manager_id = (SELECT employee_id FROM employees WHERE employee_id = '100')UNIONSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000;
D. SELECT last_name, hire_date, salaryFROM employeesWHERE salary > 10000UNION ALLSELECT last_name, hire_date, salaryFROM employeesWHERE manager_ID = (SELECT employee_id FROM employees WHERE employee_id = 100)INTERSECTSELECT last_name, hire_date, salaryFROM employeesWHERE hire_date > SYSDATE-180;

Answer: C

NEW QUESTION # 110
Which statement adds a column called SALARYto the EMPLOYEEStable having 100 rows, which cannot contain null?
ALTER TABLE EMPLOYEES

A. ADD SALARY NUMBER(8,2) DEFAULT 0 NOT NULL;
ALTER TABLE EMPLOYEES
B. ADD SALARY NUMBER(8,2) DEFAULT NOT NULL;
ALTER TABLE EMPLOYEES
C. ADD SALARY NUMBER(8,2) NOT NULL;
D. ADD SALARY NUMBER(8,2) DEFAULT CONSTRAINT p_nn NOT NULL;
ALTER TABLE EMPLOYEES

Answer: B

NEW QUESTION # 111
......

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