rmd0 (4/14/2010)
One issue I have with this solution is that MD5 *will* have collisions with moderately "wide" tables, especially when bit columns are involved. In fact, I would see as many as two or three collisions in as few as 1 million rows on a table with a dozen columns. It would usually occur when the column that changed as a bit field.
This is not the case. Please see the web page linked at the end of the article concerning the likelyhood of MD5 collisions.