1

My query is 

select num from (
select substr('2*3*4',2) num  from dual)

I am getting '2*3*4' as result after executing but my result should be 24.Can any one please help me in converting it to number.Thanks.

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1 Answer 1

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3

You can use the TO_NUMBER function to convert char/varchar to a number.

You can do the following:

select TO_NUMBER('2')*TO_NUMBER('3')*TO_NUMBER('4') from dual;

Here is a demo.

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