Merging multiple tables

Backup/Restore, Reindex, CASS Processing, Database Manager

Moderators: Moderators, Tech Support

Merging multiple tables

Postby Edward Marino » Wed Jan 26, 2005 8:32 am

Our librarians decided to use PowerChurch to put our library online. To make the process faster for them, I loaded PowerChurch on two laptops, thinking there would be some way to merge that data into the database on our main file server (there currently is no data in the record keeping module on the server). Unfortunately, there doesn't seem to be anyway to do the merge--just a replace. Is there some way around this?

By the way, this would be a great feature to add to PowerChurch.
Ed Marino
Church Business Administrator
Edward Marino
 
Posts: 3
Joined: Tue Sep 23, 2003 11:15 am
Location: Pepperell Christian Fellowship

Re: Merging multiple tables

Postby NeilZ » Thu Jan 27, 2005 12:10 am

Edward Marino wrote:Our librarians decided to use PowerChurch to put our library online. To make the process faster for them, I loaded PowerChurch on two laptops, thinking there would be some way to merge that data into the database on our main file server (there currently is no data in the record keeping module on the server). Unfortunately, there doesn't seem to be anyway to do the merge--just a replace. Is there some way around this?

By the way, this would be a great feature to add to PowerChurch.


Actually, I seem to remember a thread on this last year, and it was pointed out that any type of data merge would run into a synchronization issue. Which data is correct, the one on the server or the one on the laptop?

You would have to worry about the question: 'Has someone accessed the server and updated the main database with newer information, or has the only data entry been on the laptop?' How do I determine that, how would the system programmatically do that, as the system does not add a date/timestamp to the records.

Adding such a timestamp would involve table changes (throughout the system), and alot of overhead that the system does not currently have.

I'd network the laptops to the main system.

That said, you mentioned that currently there is no data in the record keeping modules. If there is only one set of data for the library, that is, if they entered data on one laptop, not both, you could do a backup of only the record keeping modules and restore that to the server. If there is data on both, you will need to enter the data from the one machine to the other prior to doing the backup.
Neil Zampella

Pastor's Spouse,
Connellsville Presbyterian Church
Using PC+ since 1999.
NeilZ
 
Posts: 4636
Joined: Wed Oct 08, 2003 12:20 am
Location: Connellsville, PA


Return to Utilities