Update multiple buffers at once

Hello everyone,

I'm facing a problem requiring to optimize response time. I though i can update multiple (1 000 000) buffers at once (one call of the data base)

Do you have any idea of class similar to RecordInsertList which i can use? 

NB: I can't use Update_RecordSet statement because changing are not the same for all buffers.

thank you in advance.