|For the source data set, function should be specified in the "Source Conversion expression" text box of the Mapping page of the rule wizard. For example, you want to use substring (starting 5th char and with 10 chars length) of source SQL server column. SUBSTRING(%s,5,10) conversion expression is most suitable in this case. To apply this conversion you should press "Update" button when required mapping row is selected.||
To apply the same function to the target database the user should:
Please refer to your database documentation for complete built-in functions list.