MCQs of Database Management System Set 1

MCQs of Database Management System

MCQs of Database Management System

1 / 100

In which view data can be entered in table?

2 / 100

A table is a collection of logically related data.

3 / 100

A database can have only one table.

4 / 100

Which of the following is not the binary data types?

5 / 100

By default, the name of the table is ...........................

6 / 100

Shortcut to execute query in Create Query in SQL View is ........................

7 / 100

We can create query (in Open Office Base) in ......................... .

8 / 100

Which language help to extract/fetch data from table?

9 / 100

Which command is used to modify data in table?

10 / 100

A database is an organized collection of ............................... .

11 / 100

Identify the Foreign Key from table “Sales”
Table Client:
ClientID (primary Key)
clientname
clientphone
Table : Sales
SalesID (Primary Key)
ClientID
Profit

12 / 100

Which of the following software is appropriate to store data about school students?

13 / 100

Which of the following will occupy more space in computer memory?

14 / 100

Which command is used to display the salary of all the employees after incrementing by 1000?

15 / 100

Which of the following is suitable to act as a primary key in table student?

16 / 100

By default, the length of Varchar data type is ...........................

17 / 100

In tables, data is organized in the form of rows and columns.

18 / 100

DML stands for .........................

19 / 100

A foreign key is a primary key in another table.

20 / 100

All the values in ........................ are of same type.

21 / 100

In Base data can be linked between two or more tables with the help of ......................

22 / 100

Select “empname”, “salary” * 3 from emp;

23 / 100

Update statement is used to modify data in a table.

24 / 100

Which of the following clause return specific rows?

25 / 100

Command to increase the salary of all employees by 15000. (Table name emp and column name sal)

26 / 100

In a table we can have only ........................... primary key.

27 / 100

Which of the following is not the date time data types?

28 / 100

By default, data is arranged in .............................. order using order by clause.

29 / 100

Queries are commands that are used to define the structure and modify the data in a table.

30 / 100

A record in table is also known as Attribute.

31 / 100

In primary key we can enter NULL values.

32 / 100

........................... is the most common DML command.

33 / 100

select * from Stud order by “Rollno” ASC;

34 / 100

By default, the length of the Integer data type is ............................

35 / 100

Only numeric fields can act as a primary key in a table.

36 / 100

A ........................... helps to display the data in a summarized data.

37 / 100

Which of the following is DML commands?

38 / 100

There are ...................... types of relationship which can be created between tables.

39 / 100

Which data type will be appropriate to store information as Salary, Fees, Price etc?

40 / 100

Which of the following field of table “Book” can act as primary key?

41 / 100

Which data type is used to store value of fields like “Date of Birth”?

42 / 100

Which property ensures that field cannot be left blank?

43 / 100

Char is a ....................... length data type and varchar is a ........................... length data type.

44 / 100

A key which is referring to the primary key of another table is called ..........................

45 / 100

........................ store data in Single table.

46 / 100

GUI act as front end and database server act as .......................

47 / 100

............................. statement is used to retrieve data from table.

48 / 100

When data is stored, maintained and retrieved from multiple tables then special database software are required called .........................

49 / 100

Referential Integrity is used to maintain accuracy and consistency of data in a relationship.

50 / 100

Which of the following property to be turned “yes” so that value will be auto incremented?

51 / 100

Open Office base is not an open-source software.

52 / 100

Which command is used to create table?

53 / 100

Which of the following will help to maintain unique record in the table?

54 / 100

........................ data types are used for storing photos, music files etc

55 / 100

When primary key is made up of two or more columns then it is called ........................ primary key.

56 / 100

......................... are the basic building blocks of a database.

57 / 100

............................ are used to identify which type of data we are going to store in the database.

58 / 100

........................ are dedicated computers that hold the actual databases and run only DBMS and related Software.

59 / 100

Which of the following is to be created first?

60 / 100

Which of the following clause return records in ascending order?

61 / 100

Command to display all the data in the table “emp” is.

62 / 100

Which field is suitable for storing records of employees?

63 / 100

.......................... tables can be created in a database.

64 / 100

To get details about the list of students whose favourite colour is blue. Query for this is:

65 / 100

Which of the following is not an advantage of database?

66 / 100

Which of the following property helps to set the number of characters in Varchar type?

67 / 100

Duplicate values can be entered in primary key.

68 / 100

Relationship can be created between

69 / 100

SQL stands for ..........................

70 / 100

Select “salary” from emp;

71 / 100

There can be multiple primary keys in a table.

72 / 100

Which of the following field is invalid for storing information of “Library” Table?

73 / 100

A .......................... provides a systematic way of storing information into the database.

74 / 100

Which of the following is not a numeric data type?

75 / 100

Every row in a table has the same structure.

76 / 100

A foreign key is a reference of the .......................... key in another table.

77 / 100

Duplication of data is called ............................ .

78 / 100

We can create table:

79 / 100

Base automatically adds the column as Primary Key if we don’t add it.

80 / 100

Auto Value is a property of ........................... data type.

81 / 100

In which mode we can change the structure of table?

82 / 100

A field which is ............................ for each and every record is called Primary key.

83 / 100

SQL stands for .............................

84 / 100

By default, data type of fields is.

85 / 100

Which command is used to delete data from table?

86 / 100

Relationship between tables can be created from .............................. menu.

87 / 100

Which of the following is not a database program?

88 / 100

We cannot delete the data using queries.

89 / 100

We can ....................... data in table.

90 / 100

After inserting records in table, we can not modify the structure of table.

91 / 100

.......................... represent a single data item in a table.

92 / 100

A .......................... helps to collect specific information from the pool of data.

93 / 100

Which of the following is not valid field in table “Student”?

94 / 100

Primary key increases data redundancy.

95 / 100

Which of the following act as an interface to view, enter and change data in database?

96 / 100

Duplicate values can be entered in Foreign key.

97 / 100

Sorting means to arrange data in ............................. order.

98 / 100

In RDBMS, data is organized in the form of ..........................

99 / 100

Data Integrity means that data is accurate and consistent in the database.

100 / 100

Which of the following data types cannot store decimal values?

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