SQL Server Questions and Answers – Variables

This set of SQL Server Multiple Choice Questions & Answers (MCQs) focuses on “Variables”.

1. Variables was added newly to SQL Server version _____________
a) 2005
b) 2008
c) 2012
d) 2014
View Answer

2. Point out the wrong statement.
a) All the global variables represent information specific to the server or a current user session
b) SQL Server provides only three global variables
c) Global variables represent a special type of variable
d) None of the mentioned
View Answer

3. Which of the following keyword is not associated with initialization of variable?
a) DECLARE
b) SET
c) SELECT
d) All of the mentioned
View Answer

4. Which of the following is a global variable?
a) @@CPU_BUSY
b) @@CPU_IO
c) @@CPU
d) @@I_BUSY
View Answer

5. Point out the right statement.
a) The server always maintain the values of local variable
b) Local variable names begin with a @@ prefix
c) T-SQL restricts the use of variables in ways that aren’t common in other development environments
d) None of the mentioned
View Answer

6. Which of the following global has return type ‘numeric’?
a) @@ERROR
b) @@MAX_CONNECTIONS
c) @@CPU_BUSY
d) @@IDENTITY
View Answer

7. Value of the @techonthenet variable can be changed using the SET statement, as follows __________

DECLARE @techonthenet VARCHAR(50);

a) SET @techonthenet = ‘Example showing how to declare variable’;
b) SELECT @techonthenet = ‘Example showing how to declare variable’;
c) SET @techonthenet == ‘Example showing how to declare variable’;
d) None of the mentioned
View Answer

8. _________ gives amount of time, in ticks, that SQL Server has been idle since it was last started.
a) @@ERROR
b) @@IDLE
c) @@LANGID
d) @@LANGUAGE
View Answer

9. What will be the output of the following code?

SELECT @@IO_BUSY*@@TIMETICKS AS 'IO microseconds', 
   GETDATE() AS 'as of'

a)

 IO microseconds AS OF 
--------------- -----------------------
590       2009-08-19 22:09:44.013

b)

IO microseconds AS OF
--------------- -----------------------
5906250         2009-08-19 22:09:44.013

c)

 IO microseconds AS OF
--------------- -----------------------
59250         2009-08-19 22:09:44.013

d) None of the mentioned
View Answer

10. @@LANGUAGE variable whose return type nvarchar is specified in _____________
a) sys.name
b) syslang.name
c) syslanguages.name
d) syslanguages.id
View Answer

Sanfoundry Global Education & Learning Series – SQL Server.

To practice all areas of SQL Server, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]