It's easy enough to learn that "==" is to compare numbers, "eq" is to compare strings, and "=" is for assignment in Perl, but peppiv is using Perl and SQL at the same time, and in SQL "=" is for all exact comparison and ":=" is for assignment. I (fortunately) tend to confuse the two to the detriment of my SQL, which almost always causes a syntax error instead of a logical error. Syntax errors are easier to fix than logical ones - I like "1 == $x" style for that reason (although I never remember to do it).
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