Apart from Update WP,which WP can also perform update in
Database??
When we give print request, which WP comes into the picture??

Answer Posted / anil

hi.... we 3 update mechanisms.... asynchronous,
synchronous, local upadate.

1. for user reqst, dia/btc obatins a lock from enque and
updates in temp table. this is caled asynchronous update.

2. update wp updates the data from temp tables to perm
tables based on module upon user commit. this is caled
synhronus update.

3. apart from update wp, dia wp updates a user reqst direct
into database this is cald local update..... in this method
enque update wp doesnt comes into action...


for print reqst spool wp comes into action

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