Nothing could quite match my disappointment when I realized that Splunk (a large scale logging storage and retrieval product) decided to create a Splunk Query Language and eschew SQL... except maybe when I realized that they had no equivalent of `val IN(1,2,3...)` instead requiring `val = 1 OR val = 2 OR val = 3 ...`

I have taught several non-techy business analyst type people how to write SQL during my years of employment - it really isn't that hard when most of the time it's just "SELECT what you want FROM where you want it" and teaching more complex concepts when and if they come up.