Answer:
The answer is D
Explanation:
file association associates a file with an application capable of opening that file. More commonly, a file association associates a class of files with a corresponding application.
Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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A service company would hire an Information Support and Service employee.
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Answer:
Application
Explanation:
Application software comes in many forms like apps, and even on computers. The software is most common on computers of all kinds while mobile applications are most common on cellular devices.
Answer:
The correct answer to the following question will be "A spreadsheet".
Explanation:
- A spreadsheet is a software device used to access and stores data from such a database. The interaction between separate entities (in separate tables) is controlled by their specific columns.
- It's a programming program for arranging, evaluating and storing data in tabular format.
- The spreadsheets have been developed as computer-controlled analogs to paper reporting worksheets. The system runs on data decided to enter in table cells.
Therefore, a Spreadsheet is the right answer.
