Useful stock SQL datasets?

Question

Does anyone know of any resources that provide good, useful stock datasets? For example, I\'ve downloaded a SQL script that includes all of the U.S. states, cities, and zipcode

Answer 1

Stock symbols are problematic, they can be different for every trade execution venue and pretty much all are held as protected intellectual property of the venue or data vendor, e.g. Thomson Reuters, Bloomberg, Nasdaq, NYSE.