sql - is there a way to check if a value is zero and do this or do that in mysql -

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i want sql query 

    select * members m abs(due/30*service_charge)>='0'  , abs(due/30*service_charge)<='200' group id

but in cases value of service_charge 0 , want write if service_charge = 0 , service_charge = 1;

is there way ?.

use case:

select * members m abs(due/30*(case when service_charge = 0 1 else service_charge end) >= 0 ,       abs(due/30*(case when service_charge = 0 1 else service_charge end)<= 200 group id;

however, typically handled using nullif() -- meaning null returned calculation:

select * members m abs(due / 30 * nullif(service_charge, 0) >= 0 ,       abs(due / 30 * nullif(service_charge, 0) <= 200 group id;

also, don't use single quotes around numeric constants. confuses people , confuse sql optimizer.


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