LEN('') vs LEN(NULL) vs LEN(' ') Are DIFFERENT?!
LEN of empty string, NULL, and space are all different! Empty = 0, NULL = NULL, Space = 1. This breaks string length logic! Watch!
#sql #sqltricks #database #sqltutorial #len #stringlength #sqlquiz #codingchallenge #sqlshorts #sqlbugs #stringfunctions #sqlwtf
TRIM with Different Characters?!
TRIM can remove ANY character! Not just spaces. LEADING, TRAILING, or BOTH. This flexible trimming will clean your data in unexpected ways!
#sql #sqltricks #trim #leading #trailing #sqlweird #sqlquiz #codingchallenge #sqlshorts #sqlwtf #stringfunctions #advancedsql
PHP strcmp vs == Comparison
Stop scrolling! PHP strcmp() and == compare differently. See '10' vs '10.0'. The difference will shock you!
#php #phptricks #codingtips #programmingtutorial #phpstrcmp #stringcomparison #phpstrings #phpquiz #codingchallenge #phpshorts #stringfunctions #phpcomparison
String Collation Changes Comparison?!
Collation CHANGES string comparison! Case-insensitive collation makes 'A' = 'a'. This hidden setting will break your WHERE clauses!
#sql #sqltricks #collation #stringcomparison #casesensitivity #sqlweird #sqlquiz #codingchallenge #sqlshorts #sqlwtf #stringfunctions #advancedsql
String Functions With NULL Return NULL?!
LEN, SUBSTRING, and other string functions with NULL return NULL, not error! This breaks string processing logic! Watch the reveal!
#sql #sqltricks #database #sqltutorial #stringfunctions #null #sqlquiz #codingchallenge #sqlshorts #sqlbugs #stringoperations #sqlwtf
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