InventSumDelta表的作用

https://groups.google.com/forum/#!topic/microsoft.public.axapta.programming/rRfbJo9M0dk The purpose of the InventSumDelta table is to avoid locking on the InventSum table. During a transaction all inventory movements will be recorded in the InventSumDelta table (i.e. when InventTrans is inserted or updated). When the transaction is to be commited the method Application::ttsNotifyPreCommit is called and the contents of InventSumDelta is added to the relevant InventSum records. This replaces the IMTS in Ax 3.0 and 2.5 (sp?) This avoids locking InventSum until the very last moment. So, you can use InventSumDelta whenever the on-hand may be changed in the same transaction as the calling code.