What is the difference between Write Lock(E) and Enhanced Write Lock(X) in SM12.
I have learned that E lock doesn't allow read or write and X lock doesn't allow even more operations from the same transaction.
"Write Lock(exclusive lock)
protects write access to an object. The write lock allows other transactions neither read nor write access to
the locked area of the table.
Enhanced write lock (exclusive lock without cumulating)
works like a write lock except that the enhanced write lock also protects from further accesses from the
Could you please explain what are the further accesses, and transaction here means SM12? What are the different transactions..