SQL | Structured Query Language Test

SQL can be used to

In SQL, which command is used to change a table's storage characteristics?

What does a DML Stand for?

Which of the following is a valid SQL type?

What is the meaning of a Database?

Which of the following query is correct for selecting the name of the staff from ''staffinfo'' table where salary is 10000 or 25000?

What is the meaning of the “HAVING” clause in MySQL?

Can you validate the statement?

"ORDER BY" can only be used by WHERE Clause.

True or False?

Find the names of the countries whose condition is sunny

What is the significance of “ORDER BY” in the following MySQL statement?

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

With SQL, how do you select all the records from a table named "Persons" where the value of the column "Firstname" ends with an ''a''?

Select two options which do not belong to the Purpose of Delete

How to delete the Customer name of Alfreds Futterkiste (CustomerID is 1) from the Customers table?

You can delete a view with _____________ Command.

If you don't specify ASC or DESC after a SQL ORDER BY clause, the following is used by default

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement?

SELECT emp_id

FROM person

ORDER BY emp_id;

Analyze the following Query and Mark the answer whether it's the correct query or not ?

select deptName

from Employee

having avg (salary)

group by deptName

where sex = 'M'

Which syntax is used for Drop Index (idx_pname) from the Person table in MYSQL?

What is the meaning of the “ORDER BY” clause in MySQL?

Which of the SQL statement is correct?

What is the significance of the statement of the below query?

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id

How to create index idx_pname for multiple columns (Lastname, Firstname) in a Person table?

Identify the average salary of the jobs 'MANAGER' and 'ANALYST'. Display job, average salary if the identified average salary is more than 1500.

The ___ clause allows us to select only those rows in the result relation of the clause that satisfy a specified predicate.

Which SQL keyword is used to sort the result-set?

The SQL WHERE clause used for

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

HAVING COUNT (emp_id)>2

Which command is used to change the definition of a table in SQL ?

Syntax for create a views is _______

You need to find out the names of all employees who belong to the same department as the employee 'Jessica Butcher' who is in department 100 and has an employee ID 40. Which of the following queries will be correct?

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Which of the following operators cannot be used in a sub-query?

Which of the following multi-row operators can be used with a sub-query?

What is "Subquery"?

Where subqueries can not be used?

How many types of indexes are there in the SQL server?

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?

Can you validate the statement?

A table contains more than one foreign key

True or False?

Which key accepts multiple NULL values?

Which of the following is correct DROP INDEX Command?

Choose the correct query for the below scenario.

What are the joins available in SQL?

In which two cases would you use an outer join? (Choose two.)

Choose the query that matches the above image.

In the absence of WHERE condition this JOIN will function like a _______.

What is the syntax for joining two tables? Pick Two

Analyze the following tables and output and choose the correct query to achieve the output.

What is the function of Full Outer Join in SQL?

How many tables may include with a join?

Can you validate the statement?

Alias is used in Joins.

True or False?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Gender = 'Male';

The _____ aggregation operation adds up all the values of the attribute

Use below table (Salesemployee) and answer the following question

What is the output of the following query?

SELECT SUM(Salary) from Salesemployee

WHERE Gender = 'Male';

Which SQL keyword is used to retrieve a maximum value?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT COUNT(*) from Salesemployee

WHERE Employee_ID % 2 <> 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 != 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(Salary) from Salesemployee

WHERE Salary >=2500 and Dept = 'Sales' ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT SUM(Salary) from Salesemployee

where Name = 'Tom';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'S%';

STRUCTURED QUERY LANGUAGE TEST

SQL can be used to

In SQL, which command is used to change a table's storage characteristics?

What does a DML Stand for?

Which of the following is a valid SQL type?

What is the meaning of a Database?

Which of the following query is correct for selecting the name of the staff from ''staffinfo'' table where salary is 10000 or 25000?

What is the meaning of the “HAVING” clause in MySQL?

Can you validate the statement? "ORDER BY" can only be used by WHERE Clause. True or False?

Find the names of the countries whose condition is sunny

What is the significance of “ORDER BY” in the following MySQL statement? SELECT emp_id, fname, lname FROM person ORDER BY emp_id;

With SQL, how do you select all the records from a table named "Persons" where the value of the column "Firstname" ends with an ''a''?

Select two options which do not belong to the Purpose of Delete

How to delete the Customer name of Alfreds Futterkiste (CustomerID is 1) from the Customers table?

You can delete a view with _____________ Command.

If you don't specify ASC or DESC after a SQL ORDER BY clause, the following is used by default

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement? SELECT emp_id FROM person ORDER BY emp_id;

Analyze the following Query and Mark the answer whether it's the correct query or not ? select deptName from Employee having avg (salary) group by deptName where sex = 'M'

Which syntax is used for Drop Index (idx_pname) from the Person table in MYSQL?

What is the meaning of the “ORDER BY” clause in MySQL?

Which of the SQL statement is correct?

What is the significance of the statement of the below query? SELECT branch_name, COUNT (DISTINCT customer_name) FROM depositor, account WHERE depositor.account_number = account.account_number GROUP BY branch_id

How to create index idx_pname for multiple columns (Lastname, Firstname) in a Person table?

Identify the average salary of the jobs 'MANAGER' and 'ANALYST'. Display job, average salary if the identified average salary is more than 1500.

The _______ clause allows us to select only those rows in the result relation of the ____ clause that satisfy a specified predicate.

Which SQL keyword is used to sort the result-set?

The SQL WHERE clause used for

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement? SELECT d.name, COUNT (emp_id) emp_no FROM department d INNER JOIN Employee e ON d.dept_id=e.emp_id GROUP BY d.name HAVING COUNT (emp_id)>2

Which command is used to change the definition of a table in SQL ?

Syntax for create a views is _______

You need to find out the names of all employees who belong to the same department as the employee 'Jessica Butcher' who is in department 100 and has an employee ID 40. Which of the following queries will be correct?

Can you validate the statement? An ORDER BY can be used in a subquery. True or False?

Which of the following operators cannot be used in a sub-query?

Which of the following multi-row operators can be used with a sub-query?

What is "Subquery"?

Where subqueries can not be used?

How many types of indexes are there in the SQL server?

Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?

Can you validate the statement? A table contains more than one foreign key True or False?

Which key accepts multiple NULL values?

Which of the following is correct DROP INDEX Command?

Choose the correct query for the below scenario.

What are the joins available in SQL?

In which two cases would you use an outer join? (Choose two.)

Choose the query that matches the above image.

In the absence of WHERE condition this JOIN will function like a _______.

What is the syntax for joining two tables? Pick Two

Analyze the following tables and output and choose the correct query to achieve the output.

What is the function of Full Outer Join in SQL?

How many tables may include with a join?

Can you validate the statement? Alias is used in Joins. True or False?

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(*) from Salesemployee WHERE Gender = 'Male';

The _____ aggregation operation adds up all the values of the attribute

Use below table (Salesemployee) and answer the following question What is the output of the following query? SELECT SUM(Salary) from Salesemployee WHERE Gender = 'Male';

Which SQL keyword is used to retrieve a maximum value?

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT COUNT(*) from Salesemployee WHERE Employee_ID % 2 <> 0 ;

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT MIN(Salary) from Salesemployee WHERE Employee_ID % 2 != 0 ;

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT MAX(Salary) from Salesemployee WHERE Salary >=2500 and Dept = 'Sales' ;

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT AVG(Salary) from Salesemployee WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT SUM(Salary) from Salesemployee where Name = 'Tom';

Use below table (Salesemployee) and answer the following question What is the output of following query ? SELECT Count(Salary) from Salesemployee where name Like 'S%';

Assessment complete! Thank you for you time. We are redirecting you to the result page, Please click on 'SUBMIT'

Can you validate the statement?

"ORDER BY" can only be used by WHERE Clause.

True or False?

What is the significance of “ORDER BY” in the following MySQL statement?

SELECT emp_id, fname, lname

FROM person

ORDER BY emp_id;

If emp_id contains the following set {-1, -2, 2, 3, -3, 1}, what will be the output on the execution of the following MySQL statement?

SELECT emp_id

FROM person

ORDER BY emp_id;

Analyze the following Query and Mark the answer whether it's the correct query or not ?

select deptName

from Employee

having avg (salary)

group by deptName

where sex = 'M'

What is the significance of the statement of the below query?

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id

The ___ clause allows us to select only those rows in the result relation of the clause that satisfy a specified predicate.

What is the significance of the statement “HAVING COUNT (emp_id)>2” in the following MySQL statement?

SELECT d.name, COUNT (emp_id) emp_no

FROM department d INNER JOIN Employee e

ON d.dept_id=e.emp_id

GROUP BY d.name

HAVING COUNT (emp_id)>2

Can you validate the statement?

An ORDER BY can be used in a subquery.

True or False?

Can you validate the statement?

A table contains more than one foreign key

True or False?

Can you validate the statement?

Alias is used in Joins.

True or False?

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(*) from Salesemployee

WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question

What is the output of the following query?

SELECT SUM(Salary) from Salesemployee

WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT COUNT(*) from Salesemployee

WHERE Employee_ID % 2 <> 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MIN(Salary) from Salesemployee

WHERE Employee_ID % 2 != 0 ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT MAX(Salary) from Salesemployee

WHERE Salary >=2500 and Dept = 'Sales' ;

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT AVG(Salary) from Salesemployee

WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT SUM(Salary) from Salesemployee

where Name = 'Tom';

Use below table (Salesemployee) and answer the following question

What is the output of following query ?

SELECT Count(Salary) from Salesemployee

where name Like 'S%';

Assessment complete! Thank you for you time.
We are redirecting you to the result page, Please click on 'SUBMIT'

1.

Create database structures only
Query database data only
Modify database data only
All of the above can be done by SQL

2.

Alter Table
Modify Table
Change Table
None of these

3.

Different Mode Level
Data Model Language
Data Mode Lane
Data Manipulation Language

4.

Character
Numeric
Float
All the above

5.

Collection of structured information
Database stores SQL Query
Database is a kind of view table
None of the above

6.

Select name from staffinfo where salary BETWEEN 10000 AND 25000;
Select name from staffinfo where salary IN 10000 AND 25000;
Both A and B
None of the above

7.

To filter out the row values
To filter out the column values
To filter out the row and column values
None of the mentioned

8.

TRUE
FALSE

9.

Select country from location where condition = 'sunny';
Select country from location where city IN (Select city from weather WHERE condition = 'sunny');
Select country from location where city NOT IN (SELECT city FROM weather WHERE condition = 'sunny');
SELECT country from location where city UNION (Select city from weather WHERE condition = 'sunny');

10.

Data of lname will be sorted
Data of emp_id will be sorted in descending order
Data of emp_id will be sorted in ascending order
All of the mentioned

11.

Select * from Persons where Firstname='a'
Select * from Persons where Firstname Like 'a%'
Select * from Persons where Firstname like '%a'
Select * from Persons where Firstname='%a%'

12.

It is used to delete a table.
You cannot rollback data.
It is a DML command.
It is used to delete a row in a table.

13.

DELETE FROM Customers where CustomerName = Alfreds Futterkiste AND CustomerID = 1
Delete Customers Where ContactName = 'Alfred Schmidt' WHERE CustomerID = 1;
Delete Customers Where ContactName = 'Alfred Schmidt'
Delete Customers SET CustomerName =

14.

DROP VIEW
DELETE VIEW
REMOVE VIEW
TRUNCATE VIEW

15.

ASC
DESC
Order by Randomly
No output

16.

{-3, -2, -1, 1, 2, 3}
{-1, 1, -2, 2, -3, 3}
{1, 2, 3, -1, -2, -3}
None of the mentioned

17.

TRUE
FALSE

18.

DROP INDEX idx_pname;
DROP INDEX index_name from Person;
ALTER TABLE Person DROP INDEX idx_pname;
Cannot drop Index from table

19.

Sorting your result
Aggregation of fields
Conditions in SQL
None of the mentioned

20.

Select Username AND Password FROM Users;
Select Username, Password FROM Users;
Select Username, Password Where Username = 'user1';
None of these

21.

The query is syntactically correct but gives the wrong answer
The query is syntactically wrong
The query is syntactically correct and gives the correct answer
The query contains one or more wrongly named clauses.

22.

CREATE INDEX idx_pname ON Person (LastName, FirstName);
CREATE INDEX idx_pname ON Person;
CREATE INDEX idx_pname ON Person (FirstName, LastName);
CREATE INDEX idx_pname Using (LastName, FirstName) ON Persons

23.

select job, avg(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') group by job having avg(sal)>=1500;
select job, avg(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') group by job having avg(sal)>1500;
select job, avg(sal) "Average Salary" from emp where job in('MANAGER') group by job having avg(sal)>1500;
select job, sum(sal) "Average Salary" from emp where job in('MANAGER','ANALYST') order by job having avg(sal)>1500;

24.

Where, from
From, select
Select, from
From, where

25.

ORDER BY
SORT
ORDER
SORT BY

26.

limits the column data that are returned.
limits the row data are returned.
Both A and B are correct.
Neither A nor B are correct.

27.

Filter out all rows whose total emp_id below 2
Delete the rows whose total emp_id>2
Filter out or select all rows whose total emp_id below 2
None of the mentioned

28.

CREATE
UPDATE
ALTER
SELECT

29.

CREATE VIEW View_name AS SELECT
CREATE VIEW View_name AS UPDATE
CREATE NEW VIEW View_name
CREATE VIEW View_name AS UPDATE

30.

SELECT first_name, last_name FROM employees WHERE last_name = 'Butcher' And first_name = 'Jessica';
SELECT first_name, last_name FROM employees WHERE department =100;
SELECT first_name, last_name FROM employees WHERE department = (SELECT department FROM employees WHERE first_name = 'Jessica' AND last_name = 'Butcher');
SELECT first_name, last_name FROM employees WHERE department = (SELECT department FROM employees WHERE first_name = 'Jessica' AND last_name = 'Butcher' AND department = 100 AND employee_id = 40);

31.

TRUE
FALSE

32.

AND, OR
< , > >, <>

33.

IN
ANY
ALL
All of the above

34.

Used for create new database
Using Where clause in query
Query with in a query
Joining multiple tables together

35.

Field names in the SELECT statement
The WHERE clause only in the SELECT statement
The WHERE clause in SELECT as well as all DML statements
The FROM clause in the SELECT statement

36.

1
2
3
4

37.

Candidate Key
Sub Key
Super Key
Foreign Key

38.

TRUE
FALSE

39.

Foreign Key
Unique Key
Primary Key
None of the above

40.

DROP INDEX table_name;
DROP INDEX index_name;
DROP INDEX index_name or table_name;
DELETE INDEX index_name;

41.

SELECT * FROM employees RIGHT departments ON employees.department_id = departments.department_id;
SELECT * FROM employees LEFT departments ON employees.department_id = departments.department_id;
SELECT * FROM employees JOIN departments ON employees.department_id = departments.department_id;
SELECT * FROM employee JOIN department ON employee.department_id = department.department_id;

42.

Inner, Outer, Self
Left,Middle, Half
None of above
Both A and B

43.

The tables being joined have NOT NULL columns.
The tables being joined have both matched and unmatched data.
The columns being joined have NULL values.
The tables being joined have only unmatched data.

44.

Select [List] from [Table A] A inner join [Table B] B on A.value=B.value
Select [List] from [Table A] A full outer join [Table B] B on A.value=B.value where A.value is null or B.value is null
Select [List] from [Table A] A right join [Table B] B on A.value=B.value where A.value is null
Select [List] from [Table A] A full outer join [Table B] B on A.value=B.value

45.

Inner
Cartesian
Outer
Left

46.

SELECT Column Names FROM Table 1 JOIN Table 2 ON Condition JOIN Table 3 ON Condition
SELECT * FROM Table 1 JOIN Table 2 ON Condition JOIN Table 3 ON Condition
SELECT Column from Table 1 Join Table 2, Table 3 ON Condition
SELECT Column from Table 1 AND SELECT Column from Table 2

47.

SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders LEFT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders INNER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders RIGHT OUTER JOIN Customers ON Orders.CustomerID=Customers.CustomerID;
SELECT Orders.OrderID, Customers.CustomerName, Orders.OrderDate FROM Orders ADD Customers ON Orders.CustomerID=Customers.CustomerID;

48.

Matches rows from two tables based on the values in common columns from each table
It includes all rows from the joined tables whether or not the other table has the matching row.Includes unmatched rows from one table and match rows from two tables based on the values in common columns from each table .
Includes unmatched rows from one table and match rows from two tables based on the values in common columns from each table
None of the above

49.

0
1
2
More than 1

50.

TRUE
FALSE

51.

8
4
5
3

52.

add
avg
max
sum

53.

9400
4000
5400
2500

54.

MOST
TOP
MAX
UPPER

55.

8
4
2

56.

50
500
200
100

57.

8
1
2
4

58.

1175
1000
1350
2500

59.

1000
500
2500
3000

60.

3
5
8
4

SELECT d.name, COUNT (emp_id) emp_no
FROM department d INNER JOIN Employee e
ON d.dept_id=e.emp_id
GROUP BY d.name
HAVING COUNT (emp_id)>2

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT Count(*) from Salesemployee
WHERE Gender = 'Male';

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT MIN(Salary) from Salesemployee
WHERE Employee_ID % 2 != 0 ;

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT MAX(Salary) from Salesemployee
WHERE Salary >=2500 and Dept = 'Sales' ;

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT AVG(Salary) from Salesemployee
WHERE Gender = 'Female';

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT SUM(Salary) from Salesemployee
where Name = 'Tom';

SELECT Count(Salary) from Salesemployee
where name Like 'S%';

SELECT branch_name, COUNT (DISTINCT customer_name)

FROM depositor, account

WHERE depositor.account_number = account.account_number

GROUP BY branch_id