Characteristics of a Database

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Characteristics of a Database создатель Mind Map: Characteristics of a Database

1. Table

1.1. A table is where both fields and records are displayed

2. Sort

2.1. This is the way the data is displayed e.g sorted from ascending to descending order. This allows you to keep the data organised

3. Relationship

3.1. A relationship is when you link to tables of the database together.

4. Primary Key

5. Data Types

5.1. There are various different data types. They are used to make sure that data is entered correctly.

6. Query

6.1. A query is a question that you input into the database. The database then comes back with the results to your questions. You may want to use a query to search information you are looking for.

7. Validation

7.1. Validation is when the database checks to see if the data inputted is sensible e.g a range check

8. Field

8.1. A field is where the headings for information is displayed e.g name, age