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I have come across <> used in a statement conditions a few times. Example:
SELECT param, d.param
FROM panel p join object d on p.id=d.id
WHERE param IS NOT NULL and param<>''
Let me confirm the statement above has not been tested, it mimics some of the statements that I have come across.
My question is, what is the meaning of the the diamond <> condition?
<>is likeNOT .. = ..and!=. It means not equal.MySQL comparison operators – not equal