Posts by samuelgp • 65 points

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  Q: How to calculate the difference between values that are in the same column?

  I would like to know if there is any way to calculate the difference between values that are in the same column. For example: I have a table with 2 fields: date and balance. I need to add a new…

  mysql select-sql

  asked 9 years, 6 months ago samuelgp 65

• 1

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  Q: Using Group By in SAS Guide

  I’m having trouble using the command GROUP BY, in the SAS. By definition, SAS only accepts the GROUP BY if used in the SELECT a summary function. So far, ok. Running the Proc below, the result comes…

  sql database group-by

  asked 9 years, 11 months ago samuelgp 65