Hello all,
Could someone please help me with the following,
Please be kind, don't get impatient for the lengthy post
1. Do we need to lock the system (or posting-free the system) to do early delta initialization or not? If yes, please explain me how that work?
2. Someone somewhere mentioned that early delta initialization is not preferable compared to normal delta initialization, even though early delta initialization is advantageous. Why is that so?
3. Imagine, while scheduling Queued Delta Init or un-serialized V3 delta Init, if I choose certain end date and time (say, 10pm, 12-31-2007) for the records, then all the records till that point would be loaded to setup tables and all the records after that point of time will be moved to extraction queue or update tables. My question is, if this is true why would we ever need to lock the system during setup tables filling?
If you say the records after that particular time and date (10pm, 12-31-2007) will not be collected in extraction queue and update tables, why don't we do the following
a). say, I do full load with end date and time (10pm 12-31-2007)
b). Next, I do delta init with start date and time (10pm 12-31-2007) (this time I lock the postings)
If we do this way, we can actually reduce the down time of the system. Is my conclusion right?
If you say it's not practicable as some transactions' saving time differs from time stamp and some transactions' delta is even measured by pointer.......if this is the case we can use Delta offset. What do you say about this?
4. How this scenario differs to early delta initialization?
Your responses would be greatly appreciated
Thank you