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35 Cards in this Set
- Front
- Back
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What is a databases |
A persistent organised store of related data |
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For digital databases what is data organised in |
Tables of data |
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What is a database data type |
The format of data storage that can hold a distinct type or range of values |
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When you create a database you need to set ____________ for each_______ |
Data types Field |
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What is a flat file database |
A database that stores data in a single table |
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What is a file |
A group of related records |
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What is a field |
Columns used to capture attributes |
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What is a record |
One row of details about an entity |
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What is a table |
A set of fields and records |
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What is a primary key |
Unique number for an entity |
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what is the use of a primary key |
To make each record unique and makes it easier to identify a specific entity. |
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D_______________ are used for all fields |
Data types |
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What is the field size |
The maximum or minimum size of entry |
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What is validation |
Rules for accepting data |
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What is the key field |
The field which is the primary key |
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How to you estimate the size of the file |
Number of records*Size of each record+ a little extra space |
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What are the main data types |
Text Number Boolean Date/Time Currency |
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When is text used |
For names, addresses and phone number |
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When is number used |
For numerical data needed for calculations |
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When is Boolean used |
Field which contains 2 values only YES/NO |
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When is Date/Time used |
For date and time |
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When is currency used |
Money and to prevent rounding off during calculations |
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What is the datasheet view |
The row wise and Column wise viewing of data |
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Design view allows you to work on the______________________ |
underlying structure of tables |
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What is the query design view |
Where you design your query |
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A database form shows selected___________or all___________ of one record in a attractive way |
fields
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What does a filter display |
Records in the database according to your search criteria |
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A form represents data in a__________________ which is suitable for____________ |
Attractive format printing |
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A query finds____________ in a database according the the_____________ you specify |
records criteria |
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What are the different validation rules |
Type Check Range check Format Check List Check Present Check |
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What is Type check used for |
Ensures data is in a certain type of data type |
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What is Range Check used for |
Ensures data is in a specific range |
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What is Format check used for |
Ensures data is in a certain format |
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What is list check used for |
Data must be chosen from a pre list of options |
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What is the presence check used for |
Ensures data is present in the field |
