What is the method for obtaining the cume_dist (or percentile) of a value from one column in a different column?

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The method for obtaining the cume_dist (or percentile) of a value from one column in a different column is to use the OVER() clause with a PARTITION BY statement. This involves the following syntax:

SELECT column1, column2, cumedist() OVER(PARTITION BY column1 ORDER BY column2) as percentile FROM tablename;

In this syntax, "column1" represents the column containing the values for which you want to calculate the percentile, "column2" represents the column containing the values that will be used to order the percentile calculations, and "tablename" represents the name of the table containing both columns. The cumedist() function is used to calculate the cumulative distribution of the percentile values.