distributed database

Part 1: Face-to-face This part is showing the exercises of Face-to-face activity. The exercises of this part will be discussed and answered in the class. Exercise 1 Insert appropriate lock and unlock operations in the following transactions, following the read/write locking scheme. read-item (X) X-X+K: write-item (X): T2: readilem : read-item (X): X=X+Y: write-item(X) T3: read-item (Z: Z-Z+N read-item (X. X = X + Z. read item(Y Z-Z+Y: write-item (Z): write-item (X