there is a sentence about lock and unlock:
"These methods are required to allow concurrent use of the database when booking flights from multiple clients."
Is it means in Remote-mode I must use lock and unlock,and in Local-mode I need not do it?
"These methods are required to allow concurrent use of the database when booking flights from multiple clients."
Is it means in Remote-mode I must use lock and unlock,and in Local-mode I need not do it?