Berkeley DB Family

Dear Ron,
Hi,

I have two databases that are created using Berkeley
DB, I need to merge these two databases into one
database. could you please tell me what is the fastest
way to do so?

currently, I am using the following method :
open the first database, search each key in the first
database in the second database, merge the data of
both keys and rewrite the data on the second database
but the speed is slow... I read about Cursor (Join
Union , Intersection ..) but I am not sure if those
operation are the best to get the best speed of
merging???

thank you for your help.

Best Regards,
Ahmad