Oracle Database and SQL Quiz

Question 1 Multiple Choice (Single Answer)

TRUNCATE IS USED TO?

DROP TABLE
DELETE ALL ROWS
DELETE ALL COLUMNS
DELETE ORACLE

Question 2 Multiple Choice (Single Answer)

SQL means

simple questionary language
simple query language
structured questionary language
structured query language

Question 3 Multiple Choice (Single Answer)

ORACLE IS?

object oriented programming language
programming language
scripting language
database

Question 4 Multiple Choice (Single Answer)

SQL statements are divided into?

2
3
4
5

Question 5 Multiple Choice (Single Answer)

ORACLE is used to store?

operational data
historical data
both
none

Question 6 True/False

DDL Means data drive language?

True
False

Question 7 True/False

oracle is a programming language?

True
False

Question 8 Multiple Choice (Multiple Answers)

The life cycle of the explicit cursor goes through __________stages:

Declare, Open, Close
Declare, Open, Fetch, Close
None
Declare, Open, Fetch, Close, Remove

Question 9 Multiple Choice (Multiple Answers)

Which is a Valid table name:

emp@_tab
emp#_tab
$emp_tab
Emp_delete

Question 10 Multiple Choice (Multiple Answers)

Select employee name whose job is 'Manager' or 'Clerk' and Salary greater than 1000 and comm >100 and deptno is either 10 or 20

Select ename from emp where job in ('MANAGER','CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO=(10,20);
Select ename from emp where job in ('MANAGER' OR 'CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO IN (10,20);
Select ename from emp where job in ('MANAGER','CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO IN (10,20);
None

Question 11 Multiple Choice (Multiple Answers)

What is the Output of the Following Program: declare n number:=2000; cursor c1 is select sal into n from emp where empno=7788; begin dbms_output.put_line(n); end; Data in Emp Table empno sal 123 1000

Null
It Gives Error
1000
2000

Question 12 Multiple Choice (Multiple Answers)

What is the output of the Query: select * from emp where dept_no in (select dept_no from dept order by dept_no desc);

It Executes Successfully
It throws Error with message: missing right Parenthesis
It throws Error
None

Question 13 Multiple Choice (Single Answer)

The life cycle of the explicit cursor goes through _______ stages:

Declare, Open, Close
Declare, Open, Fetch, Close
Declare, Open, Fetch, Close, Remove
None

Question 14 Multiple Choice (Multiple Answers)

Which is a Valid table name:

emp@_tab
emp#_tab
$emp_tab
Emp_delete

Question 15 Multiple Choice (Single Answer)

Select employee name whose job is 'Manager' or 'Clerk', Salary greater than 1000, comm >100 and deptno is either 10 or 20

Select ename from emp where job in ('MANAGER','CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO=(10,20);
Select ename from emp where job in ('MANAGER' OR 'CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO IN (10,20);
Select ename from emp where job in ('MANAGER','CLERK') AND SAL>1000 AND COMM>100 AND DEPTNO IN (10,20);
None

Question 16 Multiple Choice (Single Answer)

What is the Output of the Following Program: declare n number := 2000; cursor c1 is select sal into n from emp where empno = 7788; begin dbms_output.put_line(n); end; Data in Emp Table empno sal 123 1000

Null
It Throws Error
1000
2000

Question 17 True/False

The below query Executes Successfully without Error: select * from emp where dept_no in (select dept_no from dept order by dept_no desc);

True
False

Question 18 Multiple Choice (Single Answer)

What happens if we execute the below create table query at first time in a database with other than sys user and the user is having create table privileges: create table dual(a number);

It throws error with message: table or view already exists
Insufficient privileges
Table will get created successfully
None

Question 19 Multiple Choice (Single Answer)

What is the output of the below queries: if table A is having 16 rows: select count() from A where 10=10; select count() from A having 10=10;

first gives error, 16
16, second gives error
16,16
Both the queries will give error

Question 20 Multiple Choice (Single Answer)

what is the output of the the query: select 'Sql' from dual where null = null;

No rows will be displayed
Sql
It throws Error
None

Oracle Database and SQL Quiz

Questions