About parameter types
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nFigure 10-1 shows an example parameters page, listing several parameters and sample parameter values.
About multiple value parameters
A multiple value parameter is a parameter that can accept more than one value and that filters the report data. For example, a report that provides sales information by customer name can accept more than one customer to display, as shown in Figure 10-2.
Figure 10-2 Multiple value parametersAbout optional parameters
An optional parameter does not require a value. An optional parameter enables, but does not require, a user to narrow the scope of a report. If a user does not specify a value for an optional parameter, the report uses a default value.
About required parameters
A required parameter must have a value before the report can be generated. For example, a report that accesses a database can require a user name and password. Typically, a report developer supplies a default value for a required parameter.
About Boolean parameters
A Boolean parameter supports true and false values. A report developer can provide labels for Boolean true and false values. For example, after creating a Boolean parameter, Order Status, a report developer can use Order did not ship for false values, and Order shipped for true values.