Does tableau care if there are parentheses in extract headers - before starting a lot of work, I didn't want to put them in to find out after the fact that it is an issue. For example - my header would be something like "Patients (YTD)" or "Meetings Registered (FY)". We have had these fields as calcs in Tableau but due to the number of them, I want to get them into the database and have the calc performed there instead. Thanks in advance!
If I understand you correctly, you're wondering if you can use parentheses as field names within the workbook. If so, you should have no troubles using parentheses in field names. In fact, when you duplicate a field, the new default name keeps the old one then adds " (copy)" to it.