Round - 四舍五入
Trunc - 简单截取
Ceil - The CEIL function determines the smallest integer greater than (or equal to) a particular numeric value.
Floor - The FLOOR function determines the largest integer less than (or equal to) a particular numeric value.
Use trunc with caution when doing calculations, trunc may lead to data inaccuracy.
Trunc - 简单截取
Ceil - The CEIL function determines the smallest integer greater than (or equal to) a particular numeric value.
Floor - The FLOOR function determines the largest integer less than (or equal to) a particular numeric value.
Use trunc with caution when doing calculations, trunc may lead to data inaccuracy.
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