Using
Inequalities
An
inequality is a comparison using less than (<), greater
than (>) or not equal to (<>) signs. The first two
can be combined with an equal sign to give less than or equal
to (<=) and greater than or equal to (>=) comparisons.
Suppose
a potential house buyer came into the Estate Agent's office asking
for a list of houses for sale up to £40000. You could produce
a list using a similar query containing a Price field with a Criteria
entry "<=40000" meaning less than or equal to £40,000.
Don't
forget to show the conditional field in your list in order to
confirm whether your query is correct - clicking on the tick in
the Show row will determine whether it appears in the query dynaset.
Using
this method, list and print the ID, address, area and postcode
of:
- Property
with a sale price less than £50000 using the (< 50000) inequality.
- Property
with more than one garage using the (> 1) inequality.
- Property
with more than two bedrooms.
 Contents:
Databases
Skill
Check: Databases
|
