Can any one explain me when i execute below query..
select months_between('07-JUL-12','10-FEB-12') from dual;
Out put:- 4.90322581
How oracle calculate?
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write a query to dispaly those name who is more than one in student table? example- in a student table sandeep kumar comes 4 times, rakesh kumar comes 2 times, ajit kumar comes 1 times so query will display sandeep kumar and rakesh kumar single times.
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