USING MICROSOFT EXCEL
HOW TO ADD COPY AND MOVE WORKSHEETS WITHIN EXCEL WORKBOOKS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
unique
|
|
|
young
|
|
|
field
|
|
|
none of the choices
|
Detailed explanation-1: -Answers. A primary key, is a key in a relational database that is unique for each record. It is a unique identifier, such as a driver license number, telephone number (including area code), or vehicle identification number (VIN) etc.
Detailed explanation-2: -A primary key consists of one or more fields that uniquely identify each record that you store in the table. Often, there is a unique identification number, such as an ID number, a serial number, or a code, that serves as a primary key.
Detailed explanation-3: -A primary key, also called a primary keyword, is a column in a relational database table that’s distinctive for each record. It’s a unique identifier, such as a driver’s license number, telephone number with area code or vehicle identification number (VIN). A relational database must have only one primary key.
Detailed explanation-4: -Key field is a unique identifier for each record.