Abstract When your boss says “migration” or “upgrade,” do you only hear “risk” and “downtime”? You’re not alone. A recent survey reveals 90 percent of DBAs are worried about their next migration or upgrade. That’s because, traditionally, these projects have caused serious stress for database administrators. But what if you could perform database migrations and upgrades without any downtime or data loss? Imagine how relieved you’d feel if you could adopt a safer, easier approach that never interrupted business as usual. Now, you can. With the expert advice in this e-book, you’ll be able to: • Avoid risk, stress and long hours. • Replicate and integrate data in near real time. • Reduce costs, increase scalability and simplify your work. 3 Part One: Avoiding risk, downtime and long hours 4