... exciting areas in CS. Database Management Systems, R. Ramakrishnan 1 Introduction to Database Systems Module 1, Lecture 1 Instructor: Raghu Ramakrishnanraghu@cs.wisc.eduUW-Madison Database Management ... responsibility! Database Management Systems, R. Ramakrishnan 11 Scheduling Concurrent Transactions❖ DBMS ensures that execution of {T1, , Tn} isequivalent to some serial execution T1’ Tn’.– Before ... using the log. (Thanks to WAL, iflog entry wasn’t saved before the crash, correspondingchange was not applied to database! ) Database Management Systems, R. Ramakrishnan 13 The Log❖ The following...