How the imported data will add to the exixting data

[Frank Situmorang]

Hello,

I created a church database and the data will be combined in the higher
office.

My questions are as follow:
1.Waht should we use to combine, is it import or append data
2. If the record number is generated by the the sistem when inputting the
data in the form. Can we do import?, or it will zeopardise the computer
generating number system
3. Is it better to do export to spreadsheet from the churches, then in the
head office of the church, we do import the spreadsheets into the database ?
to give us chanses to ck the data first?

Thanks in advance