sql - How can I delete extra zero in a number in mysql? -

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for example,i input number,it input format number.

if input 0010,it return 10; if input 0.0200,it return 0.02; if input 0.10,it return 0.1;

i try use code,but not work.can defined function or stored procedure encapsulate business functionality?

select rtrim(00.40)

trim() + 0 can trick:

select trim(0010)+0, trim(0.0200)+0, trim(0.10)+0 dual

output:

+--------------+----------------+--------------+ | trim(0010)+0 | trim(0.0200)+0 | trim(0.10)+0 | +--------------+----------------+--------------+ |           10 |           0.02 |          0.1 | +--------------+----------------+--------------+ 1 row in set

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