Setting Parameters for an SQL Statement 
Use
You can set
parameters for SQL statements. When you execute an SQL statement for which
parameters exist, the system displays a dialog box where you have to enter a
value for the parameter.
Procedure
-
When you create the SQL
statement, insert square brackets in all the places where variable entries
are possible.
-
If you want to formulate a prompt for
the dialog box, enter this prompt within the square brackets.
-
By setting parameters you can also
replace entire sections of an SQL statement.