Crystal reports is beautiful tool and mature product for Reporting. We are writing about its field mapping function and when do you need that?
In Crystal Reports Data source / database change can cause a mismatch of field names in reports. For example old field name “Account Number” was changed to Account_number. When Crystal reports detect this type of change you can point old report object to new database field by using mapping. Field mapping simply allows you to change the field to new one.
Basically the underlying data stays the same but mismatch error will be resolved.
How would you know that there is a field mismatch?
Field mapping function triggers whenever crystal reports detect any change and field name change and allows the users to point the old name to new field name.
