Archive for February 2018

We have already used the asterisk wildcard * in queries to display all fields. The other most common wildcard is ‘?’ which was covered in module 1 and replaces exactly one character. For instance if we run a query to find Car Reg No with the Criterion LIKE ‘RS?’ it will return any car reg…

To add a second variable, open up the same query as we used in the last example. In the third column, choose Staff Number field and type :Staff into the Criterion section. This will set up a second parameter for the staff number. Notice that Visible is unchecked for both the Car Reg No and…

A parameter is a value for a certain field, often used as a query selection, that can be changed each time the query is run. Start by creating a new query in design mode and adding the ‘Jobs’ table. Select to display all fields from Jobs using the * wildcard in the first query column.…