If we delete the table, Table space will not be deleted.
According to my knowdge lock and latch both are locks
used by DB2 system to lock the resources, if reources
are locked withought the help of a DB2 component called IRL
it's called as latch, if IRL is used to **** then it's called as lock.
when u use any resource for short time , db2 will acquire latches. But if the locking time increases, db2 will go for locks. locks are managed by IRLM whereas latches are handled by internal db2 code and thats y it takes almost 70% less time than the time taken by locks to acuire some resource. in other words, latches are more efficient.
but u cant influence db2 whether to use locks or latches. it is db2's internal matter. and last word is both locks and latches ensure data integrity.