Re: a very primitive question about division

Thanks. So round(before1550/colfreq::numeric, 2) produces the desired result.

The explanations and examples of string functions in the Postgres documentation are a model of clarity. The explanations and examples of basic arithmetic operations are not. There is room for improvement there.

From: "David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Date: Wednesday, March 7, 2018 at 11:23 AM
To: Martin Mueller <martinmueller(at)northwestern(dot)edu>
Cc: "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: a very primitive question about division

On Wed, Mar 7, 2018 at 10:21 AM, Martin Mueller <martinmueller(at)northwestern(dot)edu<mailto:martinmueller(at)northwestern(dot)edu>> wrote:
Given two values defined as integers, how do I divide one by the other and get an answer with two decimals, e.g 3 /4 = 0.75.

​Case one of them to numeric.

​select 3/4::numeric
​
​David J.​