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SQL Anywhere 12.0.0 (Français) » SQL Remote » Managing SQL Remote systems » Understanding the Guaranteed Message Delivery System

 

Ensuring that messages are applied only once

The subscriber SQL Remote Message Agent (dbremote) compares the resend_count value in a messages header with the rereceive_count in its local SYSREMOTEUSER system table. If the resend_count value is smaller than rereceive_count, the message is not applied; it is deleted. This behavior ensures that operations are not applied more than once.

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