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[Database]Operators

Arithmetic Operators

+,-,×,÷

Comparison Operators

=,<>,!=,>,<,>=,<=

LIKE,BETWEEN,IN,IS NULL

Logical Operators

AND,OR,NOT[IN | LIKE| 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.

[Database]Operators