Joined February 2013
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Charity
Fork and commit to someone's open source project in need

Forked
Have a project valued enough to be forked by someone else

Walrus
The walrus is no stranger to variety. Use at least 4 different languages throughout all your repos

Lab 3
Have at least three original repos where C# is the dominant language

Lab
Have at least one original repo where C# is the dominant language
That's because most DBMSs require that you check
@var IS NULL
and [conversely]@var IS NOT NULL
.NULL
isn't what you think it is in a database; it's more of a flag than a value.This isn't anything new, just be aware you should always use
IS
orIS NOT
when comparing aNULL
.p.s. MySQL (of reference) has explicit documentation for is null & is not null. MSDN does something similar with a whole page on null comparison.