Creating and editing a computed column
This section describes how to create and edit computed columns in a report.
How to create a computed column
1 Select the column to the left of where you need the new computed column. From the right-arrow menu, choose Column→New Computed Column. Calculation appears.
2 In Column Label, type a name for the new computed column. The name you specify appears in the column header.
n To use a data field in the expression, type the left bracket ([), then select the required field from the list that appears. The list displays only fields in the report.
n To use a function, type the first letter of the function, then select the function from the list that appears. The functions indicate the arguments, if any, that you need to specify.
4 After you complete typing the expression, choose Validate. If the expression is syntactically correct, the dialog box displays the message, This Expression is valid. If the expression contains an error, the dialog box displays a message.How to edit a computed column
Select the computed column. From the right-arrow menu, choose Column→Edit Computed Column. Calculation appears. To modify the expression, continue as described in the previous section.