mysql中如何去除小数点后面多余的0

select cast(2.12000 as decimal(9,2))结果 2.12 select cast(2.10000 as decimal(9,2)) 结果 2.1 select cast(2.00000 as decimal(9,2)) 结果 2

select cast(2.12000 as decimal(9,2))结果 2.12 select cast(2.10000 as decimal(9,2)) 结果 2.1 select cast(2.00000 as decimal(9,2)) 结果 2