Why do != and  both exist in postgres?
126174
What is the difference between != and  operators?
127005
' ... != null' or 'null != ....' best performance?
57332
!! c operator, is a two NOT?
79050
Python ( or general programming ). Why use  instead of != and are there risks?
148619
Is there a reason not to use  (null safe equals operator) in mysql instead of =?
42605
Is there a technical reason to use > (<) instead of != when incrementing by 1 in a 'for' loop?
111925
What's the difference between !, %, and @ in replacement tokens?
155686
What is a reason of placing boolean or null before comparison operator?
83995
Is there any technique to do in postgresql 9.3 so that it start returning 1 and 0 instead of "t" and "f" for boolean type
130852
nodejs - mongodb - how to find all where a != b?
84584
Difference between | and || or & and && for comparison
142618
Why does the "or" go before the "and"?
84825
In SQL, what's the difference between count(column) and count(*)?
50416
What does the >?= operator mean?
32886
What is the difference between != and =! in Java?
53664
What's the difference between equal?, eql?, ===, and ==?
143719
How does !! work in bash?