1. Information handling software

2. Information handling software
Any software used to store, manipulate and output information.
Covers:
Database software
Databases created using spreadsheet software
Stores of music, sounds, photographs.

3. Updating, deleting and searching records
Update – change the data to bring up-to-date.
Delete – remove data no longer needed.
Search – look for specific records that match certain criteria (e.g., list the names of all students in Year 11).

4. Search criteria using operators
Operators are used to construct search criteria and include:
= equals
> greater than
< less than
<> not equal to
>= greater than or equal to
<= less than or equal to

5. Examples of operators being used
= Patel (in a surname field finds data for people with surname Patel).
= 20 (in a quantity field finds data for all occurrences where the quantity is 20).
>01/02/10 (in a date field finds the data for all the dates after (but not including) 01/02/10).
<>0 (in a quantity field finds the data where the quantity does not equal zero).

6. Joining operators Operators can be joined by AND or OR
Size = XL AND Type = Shirt
The above will find all the extra large shirt details
Pet = Dog OR Pet = Cat
The above will find details for dogs or cats

7. What do these searches do?
Pupil ID
Surname
Age
Free meals
Form
11901
Duggan 15 N
11G
11809
Hughes Y
11T
11900
Lee
11907
Liu
11877
Khan 16
11M
Pupil ID = 11809
Age >15
Free meals = Y AND Age <16
Form = 11T OR Free meals = Y
Surname = Lee

8. Answers
Displays one record for pupil with pupil ID (i.e., pupil with surname Hughes).
Displays all the details of pupils whose age is over 15 (i.e., the details of all 16-year-old pupils in this set of data).
Displays data of all who have free meals and are under 16.
Displays data for pupils who have free meals or who are in Form 11T.
Displays the details for pupils with the surname Lee.