Lecturer Computer Science Test 32 Online Preparation MCQs

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Note:-

There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
Practice this test at least 5 times if you want to secure High Marks.
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Test Instructions:-
Test Name Lecturer Computer Science 
Subject Computer Science Test 32
Test Type MCQs
Total Questions 25
Total Time 20 Minutes
Total Marks 100
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You have 20 minutes to pass to the quiz.


PPSC Lecturer of Computer Science Test 32

1 / 25

Which of the following deletes all tuples in the instructor relation for those instructors associated with a department located in the Watson building which is in department relation:

2 / 25

‘_ _ _ ‘ matches any string of ______ three characters. ‘_ _ _ %‘ matches any string of at ______ three characters.

3 / 25

Select ................ dept_name from instructor; Here which of the following displays the unique values of the column ?

4 / 25

Select emp_name from department where dept_name like ‘ _____ Computer Science‘; Which one of the following has to be added into the blank to select the dept_name which has Computer Science as its ending string ?

5 / 25

Select name ............... instructor name, course id from instructor, teaches where instructor.ID= teaches.ID; Which keyword must be used here to rename the field name ?

6 / 25

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

7 / 25

A Delete command operates on ........................relation:

8 / 25

Select name from instructor where dept name = ‘Physics‘ order by name; By default, the order by clause lists items in ______ order:

9 / 25

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?

10 / 25

Select * from employee where salary>10000 and dept_id=101; Which of the following fields are displayed as output?

11 / 25

Delete from r where P; The above command:

12 / 25

Select name, course_id from instructor, teaches where instructor_ID= teaches_ID; This Query can be replaced by which one of the following?

13 / 25

Update instructor _____ salary= salary * 1.05; Fill in with correct keyword to update the instructor relation.

14 / 25

operator is used for appending two strings:

15 / 25

Which one of the following deletes all the entries but keeps the structure of the relation:

16 / 25

Select name from instructor where salary <= 100000 and salary >= 90000; This query can be replaced by which of the following ?

17 / 25

Are useful in SQL update statements, where they can be used in the set clause:

18 / 25

Which of the following is used to insert a tuple from another relation:

19 / 25

Select * from employee where dept_name=‖Comp Sci‖; In the SQL given above there is an error . Identify the error:

20 / 25

Select instructor.* from instructor, teaches where instructor.ID= teaches.ID; This query does which of the following operation?

21 / 25

Select * from instructor order by salary ____, name ___; To display the salary from greater to smaller and name in ascending order which of the following options should be used ?

22 / 25

The ............... clause is used to list the attributes desired in the result of a query:

23 / 25

Insert into employee .................. (1002,Joey,2000); In the given query which of the keyword has to be inserted ?

24 / 25

In SQL the spaces at the end of the string are removed by _______ function:

25 / 25

Which of the following statements contains an error?

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