Chapter 15
Protecting Data
IN THIS CHAPTER
Avoiding database damage
Understanding the problems caused by concurrent operations
Dealing with concurrency problems through SQL mechanisms
Tailoring protection to your needs with SET TRANSACTION
Protecting your data without paralyzing operations
Reducing vulnerability to malicious attacks
Everyone has heard of Murphy’s Law — usually stated, “If anything can go wrong, it will.” People joke about this pseudo-law because most of the time things go fine. At times, you may feel lucky because you’re untouched by what purports to be one of the basic laws of the universe. When unexpected problems arise, you probably just recognize what has happened and deal with it.
In a complex structure, the potential for unanticipated problems shoots way up. (A mathematician might say it “increases approximately as the square of the complexity.”) Thus large ...
Get SQL For Dummies, 9th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
