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.
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.
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.
Description : Define primary key with an example. -Technology
Description : What is primary key? Give an example. -Technology
Description : What is a primary key in database? Give an example. -Technology
Description : Give one advantage of using primary key. -Technology
Last Answer : A primary key uniquely identifies the record in the table.
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.
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.
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.
Description : Primary key is used to …………….. identify the record. -Technology
Last Answer : Primary key is used to uniquelyidentify the record.
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.
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.
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.
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.
Description : Define primary key. How do you set it in MS_Access? -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
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.
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.
Description : Write any one similarity and one difference between primary key and unique Constraint -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.
Description : In a relational database model, NULL values can be used for all but which one of the following? (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL. (B) To ... D) To fill a column in a tuple when that column does not really exist for that particular tuple.
Last Answer : (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL.
Description : What happens when you enter numbers in a Text data type field? -Technology
Last Answer : Numbers are accepted as a text value.
Description : What is a composite primary key field ?
Last Answer : Answer : A combination of two or more attributes or keys can collectively identify an NTT set, but they are called composite primary keys.
Description : What is the primary key field ?
Last Answer : The field in the data table by which the values of a record can be completely distinguished from other records is called the primary key.
Description : A Text data type cannot allow number entry. -Technology
Last Answer : False As, it can include both text as well as numbers.
Description : You should include a mailto function in the body of your document to allow user to respond to your Web page. -Technology
Last Answer : True The mailto function is used to send E-mails from the Website.
Description : The scroll bar feature comes with scroll arrows that allow you to move easily through a document. -Technology
Last Answer : TrueDepending on the size of a window, the entire application may not be visible. So, it is the scroll bar which makes the whole screen visible for you by using scroll arrows.
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.
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.
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
Last Answer : (a) Ctrl+I is the shortcut key to make the selected text italic.
Description : What is the use of Enter and Esc key in a Slide Show? -Technology
Last Answer : Press Enter to move to the next slide and Esc to close the Slide Show.
Description : Set new timing, while rehearsing ……………… key is press. (a) Ctrl+T (b) T (c) M (d) O -Technology
Last Answer : (b) T key is used to set new timing while rehearsing.
Description : What is the shortcut key to display the Microsoft PowerPoint shortcut menu? -Technology
Last Answer : (c) Shift + F10 is the shortcut key to display the PowerPoint shortcut menu
Description : F4 key is used to start a Slide Show. -Technology
Last Answer : FalseF5 key is used to start a Slide Show.
Description : The contents of a cell can be changed by pressing F2 key on keyboard. -Technology
Last Answer : True F2 is a shortcut for making the cell editable.
Description : An IP address is a string of ……….. numbers separated by periods. -Technology
Last Answer : (b) An IP address consists of 4 numbers separated by periods.
Description : Name the data type that should be used to store Student’s Admission numbers. -Technology
Last Answer : Data type should be Text.
Description : Single and double are the types of (a) Integer data type (b) Decimal numbers -Technology
Last Answer : (d) Date/Time will be the data type because it allows storing date and time format.
Description : Can you change the style of numbers in an ordered list? -Technology
Last Answer : Yes, we can change the style of numbers in an ordered list.
Description : Letters, numbers and symbols are the various forms of ………….. -Technology
Last Answer : Letters, numbers and symbols are the various forms of data.
Description : Which of the following tag is used to make a list that lists the items with numbers? -Technology
Last Answer : (c) is the ordered list that starts with a number like 1, A, a, i and I etc.
Description : In an ordered list, each item cannot be preceded with (a) Counting numbers -Technology
Last Answer : (d) In an unordered list, bullets are used while counting numbers, Arabic numbers and Roman numbers are used in an ordered list.
Description : If you want to display uppercase alphabets instead of numbers, ………… ordered type should you use. -Technology
Last Answer : If you want to display uppercase alphabets instead of numbers, Aordered type should you use.
Description : If cell range A1 : A5 contain the numbers 20, 16, 5, 35 and 7 then = AVERAGE(A1 : A5, 50) will display. -Technology
Last Answer : The correct answer is(a) 22.167
Description : Is there a freeware program that will allow me to simply hold down a key to restrict my mouse movemement to either the X or Y plane?
Last Answer : I’ve seen this function in graphics programs but never as a standalone program. However, I don’t really see the use for it outside of a graphics program. Good luck
Description : After the celebration of the successful milestone completion, a project manager will often do which of the following? Select one: a. Continue to increase the intensity of the project to achieve the ... milestone. e. Stretch the goals of the project team, making them more tough and rigorous.
Last Answer : c. Allow the team to reflect on finding new ways of approaching the project work.
Description : Control Unit is called the ………….. of a computer system. (a) heart (b) nerve centre (c) primary memory (d) All of these -Technology
Last Answer : (b) Nerve centre because it controls the overall processing of a computer system.
Description : …… memory is used to store large amount of information permanently. (a) RAM (b) ROM (c) Secondary (d) Primary -Technology
Last Answer : (c) Secondary memory is used to store large amount of information permanently.
Description : Which of the following statement is false? (a) Secondary storage is faster (b) Primary storage is both volatile and non volatile in nature. -Technology
Last Answer : (a) Secondary memory is the slowest and cheapest form of memory. It cannot be processed directly by the CPU and it must be first copied into RAM.