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math function

math function

math function

is there a function that can divide a range of numeric data into sub-categories?  for example, if I have data from 1 to 20, and I want result to be group by (1,5), (6,10), (11,15), and (16,20) intervals.

Thank you.

RE: math function

Boa, if the groups are regular groups of 5 you could try grouping by something like trunc(x/5) i.e. the integer result of a division operation (n.b. syntax may vary depending on RDBMS); if not you may want a look up table with lower and upper range bounds and an identifier, join to it where value is between the bounds and group on the identifier.

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