When I think of FUD (Fear, Uncertainty, Doubt), I think of the intangible (and irrational) sense that a given technology is inherently bad, will cause your site to go down, and your girlfriend to leave you.
Over time SQL FUD has cropped up from all the NoSQL evangelists hammering on about how NoSQL solves all the traditional problems RDBMSs have. Do they have valid points? In a lot of cases, sure. But that doesn’t mean that NoSQL is without its own problems.
Part of making peace between the SQL and NoSQL camps should include being honest about the strengths and weaknesses of each technology, so engineering decisions get made, not sales decisions. Every technology has its strengths and weaknesses, just like physical materials in, say, …
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