MySQL学习笔记（5）--运算符

·算术运算符 一般用于结果运算（select 字段中）web create table my_int( a int, b int, c int, d int ); insert into my_int values(1,-1,0,default); select a + b, a - b, a * b, a / b, a / c, d / b from my_in

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