Locking a DB record before modifying it

Hi all,

We want to use the locking mechanism, i.e. lock a record before updating, inserting or deleting it. This is required to avoid concurrency issues.

How it can be done using WebDynpro technology?. Do we have to create some lock objects similar to the R/3 system or something else.

Any inputs are most welcome.

Thanks in advance.

~Deshdeepak.