问题
Can anyone please tell me ,how to implement Percentile in Hive? I tried with percentile function,but not able to get the expected result. Example code will greatly help.
回答1:
Use the percentile function, as per the product documentation:
Returns the exact pth percentile of a column in the group (does not work with floating point types). p must be between 0 and 1. NOTE: A true percentile can only be computed for integer values. Use
PERCENTILE_APPROXif your input is non-integral.
If you are not able to get 'expected result' then your going to add a lot more detail to your question, as in what is the data, your query, and the expected result.
来源：https://stackoverflow.com/questions/35146395/how-to-implement-percentile-in-hive