[Database]Operators
Arithmetic Operators
+,-,×,÷
Comparison Operators
=,<>,!=,>,<,>=,<=
BETWEEN,IN,IS NULL
Logical Operators
AND,OR,NOT[LIKE | IN | BETWEEN | NULL]
String Operators
LIKE,||
Operators precendence
parentheses > comparison > AND > OR
() > 比较 > and > or
Arithmetic > Comparison > Logical
Strings comparison
digits < lowercase letters < uppercase letters.
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