Use multiple criteria to limit the results of a query.
Using Multiple Criteria in Access
In some cases one criterion may not be enough to limit the data to only the records that you want to see. You may want to combine criteria.
When you use multiple criteria you must use an operator to tell Access how they work together. You do this by using Logical Operators.
View the Table below to examine a chart of the logical operators.
How it works
Tells Access that a record must meet more than one criteria to be shown in the datasheet
Tells Access that a record must meet only one of several criteria in order to be shown in the datasheet
Tells Access that a criteria must be false in order for the record to be shown in the datasheet
AND is the more limiting operator--it tells Access that a record must meet both the criteria before the operator and the criteria after the operator in order to be shown on the datasheet. OR is a more lenient operator, it tells Access that as long as a record meets one of the criteria, it can be displayed on the datasheet.
Multiple criteria in a single row
When you use criteria for more than one field, and put them all in the Criteria row of the query grid, Access assumes that you mean to join them with AND. So a record must meet all criteria within that row in order to be displayed on the datasheet.
Or rows in the query grid
If you have multiple criteria for one field and you want to join these criteria with OR, use the Or row(s) in the query grid (when you use the first Or row, additional Or rows appear).
Similarly, if you have criteria for multiple fields that you want to join with Or, put the first criteria in the Criteria row, and the next in the Or row. Each additional criteria should go in its own Or row.
When you use multiple criteria in a single Or row, those criteria, confusingly enough, are considered to be joined with AND (just as multiple criteria in the Criteria row are considered to be joined with AND).
Learn to refine your query by specifying a sort order.