STRUCTURED QUERY LANGUAGE TEST

Progress

1.

What is the SQL query used to retrieve all the data from the customer table?

2.

Which is the subset of SQL command used to manipulate Database structures, including tables?

3.

To delete the database __________ Command is used

4.

 What does a  DML Stand for?

5.

Which one is a non-relational database?

6.

Find the names of the countries whose condition is sunny

7.

 Syntax for create a  views is _______

8.

We can use one table to create another table using the below query. True or False ?

CREATE TABLE TestTable AS

SELECT customername, contactname

FROM customers;

9.

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

10.

The SQL WHERE clause used for 

11.

Select ID, GPA from student grades order by GPA ____________.

In order to give only 10 ranks, on the whole, we should use.

12.

Can you validate the statement?

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

True or False?

13.

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

14.

Select ID, name, dept name, salary * 1.1 where instructor;

The query given below will not give an error. Which one of the following has to be replaced to get the desired output?

15.

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

16.

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

17.

Select ________ dept_name from instructor; 

Here which of the following displays the unique values of the column?

18.

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?

19.

What can be the condition in the "WHERE" clause in a SQL query?

20.

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

21.

Which of the SQL statement is correct?

22.

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

23.

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

SELECT Name, Age, Firstname, Lastname
FROM EMPLOYEE     
GROUP BY NAME, SALARY;  

24.

Find all the cities whose humidity is 89

25.

Which SQL Query is used for updating the ContactName in the Customers table?

26.

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

27.

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          

28.

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

SELECT emp_id, fname, lname  
FROM person    
ORDER BY emp_id;  

29.

Find the name of these cities with temperature and condition whose condition is neither sunny nor cloudy

30.

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

31.

Which of the following statements are TRUE regarding subqueries?

32.

Which of the following clause is mandatorily used in a sub-query?

33.

Can you validate the statement?

A subquery can be used anywhere an expression is allowed.

True or False?

34.

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

35.

Where subqueries can not be used?

36.

Can you validate the statement?

A column with a Primary key has a Null value.

True or False?

37.

Can you validate the statement?

We can use the index on columns that contain a high number of NULL values.

True or False?

38.

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

39.

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

40.

How many Primary Keys can have in a table?

41.

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

42.

What is the syntax for joining two tables? Pick Two

43.

What is the function of Full Outer Join in SQL?

44.

Can you validate the statement?

Alias is used in Joins.

True or False?

45.

Statement: Join for each row of one table to every row of another table.

Which Join?

46.

Can you validate the statement?

Join is different from Inner join.

True or False?

47.

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

 

48.

Choose the correct query for the below scenario.

 

49.

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

50.

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

51.

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%' and Dept ='HR';

 

52.

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

 

53.

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT Count(*) from Salesemployee 
WHERE Salary >=500 and Dept = 'Sales';

 

54.

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

 

55.

Which among the following belongs to an “aggregate function”?

56.

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%';

 

57.

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

 

58.

“COUNT” keyword belongs to which categories in MySQL?

59.

Use below table (Salesemployee) and answer the following question
What is the output of following query ?
SELECT Count(*) from Salesemployee 
WHERE Salary >500;  

 

60.

In SQL - these functions - AVG, MIN, MAX, COUNT are called as ___________

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