Question # 1
You want to display 5 percent of the rows from the SALES table for products with the
lowest AMOUNT_SOLD and also want to include the rows that have the same
AMOUNT_SOLD even if this causes the output to exceed 5 percent of the rows.
Which query will provide the required result?
| | A. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH
FIRST 5 PERCENT ROWS WITH TIES;
| | B. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH
FIRST 5 PERCENT ROWS ONLY WITH TIES;
| | C. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH
FIRST 5 PERCENT ROWS WITH TIES ONLY;
| | D. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH
FIRST 5 PERCENT ROWS ONLY; |
A. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH
FIRST 5 PERCENT ROWS WITH TIES;
Question # 2
Examine the data in the CUSTOMERS table:
Which two JOIN options can be used in the blank in the above query to give the correct output? (Choose two.)
| | A. LEFT OUTER JOIN
| | B. JOIN
| | C. NATURAL JOIN
| | D. RIGHT OUTER JOIN
| | E. FULL OUTER JOIN |
B. JOIN
D. RIGHT OUTER JOIN
Question # 3
Which two statements are true about the SET VERIFY on command?
| | A. It displays values for variables created by the DEFINE command.
| | B. It can be used in SQL Developer and SQL*Plus.
| | C. It displays values for variables prefixed with &&.
| | D. It can be used only in SQL*Plus.
| | E. It displays values for variables used only in the where clause of a query. |
B. It can be used in SQL Developer and SQL*Plus.
C. It displays values for variables prefixed with &&.
Question # 4
Which two statements are true about selecting related rows from two tables based on an Entity Relationship
Diagram (ERD)? (Choose two.)
| | A. Implementing a relationship between two tables might require joining additional tables
| | B. Relating data from a table with data from the same table is implemented with a self join
| | C. Rows from unrelated tables cannot be joined
| | D. Every relationship between the two tables must be implemented in a join condition
| | E. An inner join relates rows within the same table |
A. Implementing a relationship between two tables might require joining additional tables
E. An inner join relates rows within the same table
Question # 5
You issued this command:
CHOOSE THREE
SQL > DROP TABLE employees;
Which three statements are true?
| | A. Sequences used in the EMPLOYEES table become invalid.
| | B. If there is an uncommitted transaction in the session, it is committed.
| | C. All indexes and constraints defined on the table being dropped are also dropped.
| | D. The space used by the EMPLOYEES table is always reclaimed immediately.
| | E. The EMPLOYEES table can be recovered using the ROLLBACK command.
|
B. If there is an uncommitted transaction in the session, it is committed.
C. All indexes and constraints defined on the table being dropped are also dropped.
Question # 6
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,Login_id
NUMBER,Employee_name VARCHAR2(100),Hire_date DATE,CONSTRAINT
emp_id_ukUNIQUE (employee_id, login_id));
| | B. 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));
| | C. CREATE TABLE employees(employee_id NUMBER CONSTRAINT emp_id_pk
PRIMARY KEY, Login_id NUMBER UNIQUE, Employee_name VARCHAR2(25),Hire_date
DATE);
| | D. 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));
| | 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)); |
B. 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));
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));
Question # 7
Which three statements are true about inner and outer joins? (Choose three.)
| | A. A full outer join must use Oracle syntax
| | B. An inner join returns matched rows
| | C. A left or right outer join returns only unmatched rows
| | D. A full outer join returns matched and unmatched rows
| | E. Outer joins can only be used between two per query
|
B. An inner join returns matched rows
C. A left or right outer join returns only unmatched rows
D. A full outer join returns matched and unmatched rows
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