Practical Databases
How to import a CSV into access
1. Open up access External data Text file 2. Click on browse and finde your excel file Click open and OR 3. Click next 4. Tick- first row contains field names Click names 5.Click next Choose your primatie key, if there is non. And if there are 2, click on your primatie key 6. Advanged bottom and change to a full stop
Boolean
2 opptions Yes or no
Definition of Relational database
2 or more tables that we link together
Explain what a runtime calculation is
A calculation using the information from the table in the database
Item
A particular piece of data (one cell)
Definition of database
A place to store large amounts of sinlar data (same type info)
What is a wild card?
A wildcard is a star *=wildcard K*= begining with K *K=ending with a K *A*= A in the middel
Currency
Anything to do with money
Text
Anything with letters, number or symbols
How to create a form to make data entry easier
Create-Form wizard-makesure table is selected-next-next-finish
Date and Time
Date and time
Name the 5 main parts of a standard flat file database
File/table Record Field Item Primary key
Field
Generally heading in the table
Where do you create a runtime calculation?
In the Query
Numeric
Integer-10 Decimal-10.5
Record
One row The details of one person
Definition of Flat file
Only one table
Advantages when using a Relational database
Primary key- unique identifies record Tables are linked No repeated data Editing once all updated
Explain these features of a database: Primary key Foreign key Relationship (link)
Primary key: Unique record (number) Foreign key: Links the table (primatie key from one table is now in second table) Relationship (link): How they link togehter
File/table
The hole table
Explain what a Query is used for
To find specific critreria in a table Filters answers for questions
Primary key
Unique code Key field Used for searches
Disadvantages when using Flat file database
Unorganised Large Repeated data (redvndant data)
Advanced Query
Were you have to write several critiras to find your specific info
Simple Query
Were you only have to type in one critira to find the specific info you need
