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Bill Fellows has a public service announcement:

The concat function is super handy in the database world but be aware that the SQL Server one is way better because it solves two problems. It combines everything into a string and it does not require NULL checking. In the before times, one had to down cast to a n/var/char type as well as check for NULL before appending strings via the plus sign.

The point of difference is so important that Bill busted out the marquee HTML tag. Which now leads me to wonder, was marquee or blink the bigger evil in the mid-to-late ’90s web?