Query Options Dialog Box
You can use the Query Options dialog box to specify the settings for a query. This topic describes the options in the dialog box.
Designer displays the Query Options dialog box when you select Menu > Query > Current Query Options in the Query Editor dialog box.
You see the following options in the dialog box:
Auto Join Defaults
You can specify the criteria based on which to join the tables automatically in the query in this box.
- Join on foreign keys
Select to automatically join tables in a query through a reference from Table A to a primary key in Table B. For example, an order form in Table A shows information on purchases that are made by a customer with a primary key of CustomerID. The customer ID # refers to a record in Table B which lists a specific address, phone number, name, and so on for the customer. CustomerID in Table A is a foreign key because it links the customer's ordering information in Table A to the customer's information in Table B using the CustomerID field.
- Join on primary keys with same names
Select to automatically join tables in a query through a field or a combination of fields that uniquely and specifically identifies a record. For example, OrderID may be the primary key in a table for Orders and also for Payments.
- Join on same name
Select to automatically join tables in a query through a link between two columns of the same name in two different tables. This often creates many invalid joins such as Amount that appears in both tables.
Show Mapping Names
Select to display the full names of the columns in the criteria panel of the Query Editor dialog box.
Show Table Names
Select to display the name of the table that each column belongs to in the criteria panel of the Query Editor dialog box.
Warn When Cartesian Exists
Select to let Designer display a warning message when a Cartesian product exists. A Cartesian product is used when you add tables to the query with no join specifications.
Select to apply all changes and close the dialog box.
Select to close the dialog box without saving any changes.
Select to view information about the dialog box.