Re: simple division
Joshua D. Drake <jd@commandprompt.com>
From: "Joshua D. Drake" <jd@commandprompt.com>
To: Martin Mueller <martinmueller@northwestern.edu>,
pgsql-general <pgsql-general@postgresql.org>
Date: 2018-12-04T20:38:07Z
Lists: pgsql-general
On 12/4/18 12:29 PM, Martin Mueller wrote: > > I have asked this question before and apologize for not remembering > it. How do you do simple division in postgres and get 10/4 with decimals? > > This involves cast and numeric in odd ways that are not well explained > in the documentation. For instance, you’d expect an example in the > Mathematical Functions. But there isn’t. > > The documentation of string functions is exemplary. The documentation > of mathematical less so. Remember that it may be used by folks like me > whose math is shaky. The MySQL documentation is better on this simple > operation. > I may be misunderstanding the question but: select cast(x/y as numeric(10,4)); JD > ----- > > Martin Mueller > Professor emeritus of English and Classics > > Northwestern University > -- Command Prompt, Inc. || http://the.postgres.company/ || @cmdpromptinc *** A fault and talent of mine is to tell it exactly how it is. *** PostgreSQL centered full stack support, consulting and development. Advocate: @amplifypostgres || Learn: https://postgresconf.org ***** Unless otherwise stated, opinions are my own. *****