Primary key is used to …………….. identify the record. -Technology

Primary key is used to …………….. identify the record. -Technology
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Primary key is used to uniquelyidentify the record.
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Primary key field gives us permission to record duplicate entry. -Technology

Description : Primary key field gives us permission to record duplicate entry. -Technology

Last Answer : False A primary key is a key which identifies records uniquely in a table so it does not give us permission to record duplicate entry.

…………. is a field which is used as a primary key and numbers each record sequentially. -Technology

Description : …………. is a field which is used as a primary key and numbers each record sequentially. -Technology

Last Answer : AutoNumberis a field which is used as a primary key and numbers each record sequentially.

Identify the primary key column of Train and Reservation. -Technology

Description : Identify the primary key column of Train and Reservation. -Technology

Last Answer : (i) Train-TrainIdReservation-RefNo(ii) (d) By default, the UNION operator selects all the values.

Key field is a unique identifier for each record. It is defined in the form of (a) rows (b) columns -Technology

Description : Key field is a unique identifier for each record. It is defined in the form of (a) rows (b) columns -Technology

Last Answer : (b) Key is a data item that allows you to uniquely identify individual occurrences which is defined as the column or set of columns.

What is a primary key? -Technology

Description : What is a primary key? -Technology

Last Answer : A field which uniquely identifies each record in a table is known as the primary key. e.g. emp id is the primary key of the Employee table.

Define primary key with an example. -Technology

Description : Define primary key with an example. -Technology

Last Answer : A field which uniquely identifies each record in a table is known as the primary key. e.g. emp id is the primary key of the Employee table.

What is primary key? Give an example. -Technology

Description : What is primary key? Give an example. -Technology

Last Answer : A field which uniquely identifies each record in a table is known as the primary key. e.g. emp id is the primary key of the Employee table.

What is a primary key in database? Give an example. -Technology

Description : What is a primary key in database? Give an example. -Technology

Last Answer : A field which uniquely identifies each record in a table is known as the primary key. e.g. emp id is the primary key of the Employee table.

Give one advantage of using primary key. -Technology

Description : Give one advantage of using primary key. -Technology

Last Answer : A primary key uniquely identifies the record in the table.

What is the significance of a primary key? -Technology

Description : What is the significance of a primary key? -Technology

Last Answer : A primary key cannot allow null values and must have a unique index.

What is the utility of primary key in database? Write distinct features of primary keys. -Technology

Description : What is the utility of primary key in database? Write distinct features of primary keys. -Technology

Last Answer : The primary key is used to uniquely identify the record in a database. It can be a column or a set of columns in the table.Main features of the primary key are as follows:1. It must contain a unique value for each record of the table.2. It does not contain null values.

Which of the following fields will not make a suitable primary key? (a) A customer’s account number -Technology

Description : Which of the following fields will not make a suitable primary key? (a) A customer’s account number -Technology

Last Answer : (b) From the given options, the data field can not be set as a primary key because it can’t be fixed for an object.

The candidate key, which is not used as primary key is called ………….. key. -Technology

Description : The candidate key, which is not used as primary key is called ………….. key. -Technology

Last Answer : The candidate key, which is not used as primary key is calledalternate key.

A primary key field does not allow numbers. -Technology

Description : A primary key field does not allow numbers. -Technology

Last Answer : False Primary key has to identify a unique value which can be present in a table, in a number form also. It means primary key field allow number too.

A primary key value can be NULL. -Technology

Description : A primary key value can be NULL. -Technology

Last Answer : False The primary key of table is used to uniquely identify each and every row in the table. So, its all keys and columns must be defined as NOT NULL.

A foreign key is a primary key in another table. -Technology

Description : A foreign key is a primary key in another table. -Technology

Last Answer : True When a table’s primary key field is added to a related table in order to create the common field which relates two tables, it is called a foreign key in the related table.

What is a primary key? How do we set a primary key? -Technology

Description : What is a primary key? How do we set a primary key? -Technology

Last Answer : Primary key is the key which is used to uniquely identify the records into the table. To set the primary key you have to follow the steps given below:Step 1 Select the field that you want ... 2 Click Primary Key button from the Design tab.orRight click on the selected field and select Primary Key.

Define primary key. How do you set it in MS_Access? -Technology

Description : Define primary key. How do you set it in MS_Access? -Technology

Last Answer : Primary key is the key which is used to uniquely identify the records into the table. To set the primary key you have to follow the steps given below:Step 1 Select the field that you want ... 2 Click Primary Key button from the Design tab.orRight click on the selected field and select Primary Key.

What is a primary key in a table? -Technology

Description : What is a primary key in a table? -Technology

Last Answer : A primary key is a special relational database table column (or combination of columns) designated to uniquely identify each & every table record. It does not contain NULL & duplicate values

Write any one similarity and one difference between primary key and unique Constraint. -Technology

Description : Write any one similarity and one difference between primary key and unique Constraint. -Technology

Last Answer : Similarity: Column with both the constraints will only take unique values.Difference: Column with Primary key constraints will not be able to hold NULL values while Column with Unique constraints will be able to hold NULL values.

Write any one similarity and one difference between primary key and unique Constraint -Technology

Description : Write any one similarity and one difference between primary key and unique Constraint -Technology

Last Answer : Similarity: Column with both the constraints will only take unique values.Difference: Column with Primary key constraints will not be able to hold NULL values while Column with Unique constraints will be able to hold NULL values.

The candidate key is that you choose to identify each row uniquely is called …………….. A) Alternet Key B) Primary Key C) Foreign Key D) None of the above

Description : The candidate key is that you choose to identify each row uniquely is called …………….. A) Alternet Key B) Primary Key C) Foreign Key D) None of the above

Last Answer : B) Primary Key

Technology: What is the best way to record a lecture/class?

Description : Technology: What is the best way to record a lecture/class?

Last Answer : Your phone is probably the best tool for the job. But if you don’t have one (or have one of those old flip-phones), you can get a recorder. My wife uses this to record lectures.

A Web page is located using a (a) Universal Record Linking (b) Uniform Resource Locator -Technology

Description : A Web page is located using a (a) Universal Record Linking (b) Uniform Resource Locator -Technology

Last Answer : (b) URL (Uniform Resource Locator) specifies the location of a specific Web page on the Internet.

A computer is a mechanical machine, which is used only for record keeping. -Technology

Description : A computer is a mechanical machine, which is used only for record keeping. -Technology

Last Answer : FalseComputer is an electronic device that has the ability to store, retrieve and process data.

How are fields, record and a table related to each other? Explain with the help of an example. -Technology

Description : How are fields, record and a table related to each other? Explain with the help of an example. -Technology

Last Answer : Fields are one type of information. A record contains logically related fields. A table Emp name contains logically related records.Emp NoNameSalary1.Shridhar200002.Raghav40000Here EmpNo, Name, and Salary are three different fields. 1, Shridhar, 20000 represents one complete record.

Distinguish between a record and a field in a table, with an example. -Technology

Description : Distinguish between a record and a field in a table, with an example. -Technology

Last Answer : Distinguish between a record and a field in a table are as follows:RecordFieldIt is a collection of data items, which represent a complete unit of information about a thing or a person.It is an ... called a record.e.g. if Employeeis a table, then empId, empName, department, salary arethe fields.

Computer based record keeping system is known as (a) Data Manipulation System -Technology

Description : Computer based record keeping system is known as (a) Data Manipulation System -Technology

Last Answer : (d) DBMS is a collection of programs that enable the user to create and maintain the database. Also, it is a computer-based record keeping system.

RDBMS provides relational operators to manipulate the data. Here, RDBMS refers to (a) Record Database Management System -Technology

Description : RDBMS provides relational operators to manipulate the data. Here, RDBMS refers to (a) Record Database Management System -Technology

Last Answer : (b) RDBMS stands for Relational Database Management System, which provides the operator to manipulate the data stored in the database table.

Which field property specifies whether the field can be left empty when entering data into a record? -Technology

Description : Which field property specifies whether the field can be left empty when entering data into a record? -Technology

Last Answer : Required property.

How can you add a record in the table in Datasheet View? -Technology

Description : How can you add a record in the table in Datasheet View? -Technology

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A text field is initially 40 characters long and one record has an entry in this field in MS_Access database. -Technology

Description : A text field is initially 40 characters long and one record has an entry in this field in MS_Access database. -Technology

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Description : What is the name of the column heading for each category in a data source? (a) Data field (b) Field (c) Field name (d) Record -Technology

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In a school, a database named “school” is created in mysql whose password is “cbse”. Smith is trying to add a new record of a student having details -Technology

Description : In a school, a database named “school” is created in mysql whose password is “cbse”. Smith is trying to add a new record of a student having details -Technology

Last Answer : import mysql.connectormydb = mysql.connector.connect{host='localhost',user='root',passwd='cbse',database='school'}mycursor = mydb.cursor()mycursor.execute('INSERT INTO student values(3,'Michelle', 'Agartala');')mydb.commit()

Write the significance of a foreign key. -Technology

Description : Write the significance of a foreign key. -Technology

Last Answer : A foreign key is used to Establish the relationship between any two tables of RDBMS.

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

Description : A foreign key is a reference of the ………….. key in another table. -Technology

Last Answer : A foreign key is a reference of the primary keyin another table.

Which shortcut key is used to make the selected text italic? (a) Ctrl +I (b) Shift +I (c) F1 + I (d) None of these -Technology

Description : Which shortcut key is used to make the selected text italic? (a) Ctrl +I (b) Shift +I (c) F1 + I (d) None of these -Technology

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What is the use of Enter and Esc key in a Slide Show? -Technology

Description : What is the use of Enter and Esc key in a Slide Show? -Technology

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Set new timing, while rehearsing ……………… key is press. (a) Ctrl+T (b) T (c) M (d) O -Technology

Description : Set new timing, while rehearsing ……………… key is press. (a) Ctrl+T (b) T (c) M (d) O -Technology

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Description : What is the shortcut key to display the Microsoft PowerPoint shortcut menu? -Technology

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Description : F4 key is used to start a Slide Show. -Technology

Last Answer : FalseF5 key is used to start a Slide Show.

The contents of a cell can be changed by pressing F2 key on keyboard. -Technology

Description : The contents of a cell can be changed by pressing F2 key on keyboard. -Technology

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Can you identify examples of refugees utilizing technology to maintain contact with the homeland?

Description : Can you identify examples of refugees utilizing technology to maintain contact with the homeland?

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Description : Identify input/output devices from the clues given below: (a) Transfers typed or handw -Technology

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Description : Identify the columns out of the given three, which should not be present in each of the following tables: -Technology

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Carefully read the following descriptions and identify what is being talked about. 1. It consists of two insulated wires twisted around each other, -Technology

Description : Carefully read the following descriptions and identify what is being talked about. 1. It consists of two insulated wires twisted around each other, -Technology

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Description : Identify the odd term amongst the following. (a) Microwave (b) Radiowave (c) Bluetooth -Technology

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Description : Identify the error(s) in the following HTML code. Also, write the correct code. -Technology

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Description : Identify the errors and write the correct HTML code 1. -Technology

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