Defining parameters

An Actuate SQL parameter is a variable that is used in an information object. The information object user provides a value for this variable in BIRT Studio, Actuate Query, a report designer, or Information Object Designer.

For example, the following Actuate SQL query uses the parameters lastname and firstname in the WHERE clause:

WITH ( lastname VARCHAR, firstname VARCHAR )

SELECT lname, fname, address, city, state, zip

FROM customerstable

WHERE (lname = :lastname) AND (fname = :firstname)

If an Actuate SQL query defines a parameter in a WITH clause but does not use the parameter, the query does not return any rows if no value is provided for the parameter when the report runs. For example, the following query does not return any rows if no values are provided for the lastname and firstname parameters when the report runs:

WITH ( lastname VARCHAR, firstname VARCHAR )

SELECT lname, fname, address, city, state, zip

FROM customerstable

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