Ordering a varchar field in mysql

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*Questions on PHP*



In one of our tables, one of the field is acc_no, we had given the data type
as varchar, since it could take any alpha-numeric values. In viewing this,
we used 'order by acc_no.' The sequence of  records shown was
1,10,100,1000,A1, A10, A100, etc. whereas we want the sequence to be
1,2,3,4,etc. for all the numeric values followed by alpha-numeric values A1,
A2, A3, etc.



Can someone please give us the code for this type of ordering?


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