Re: Simple math statement - problem

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От Gregory Williamson
Тема Re: Simple math statement - problem
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Msg-id 8B319E5A30FF4A48BE7EEAAF609DB233015E2FF1@COMAIL01.digitalglobe.com
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Ответ на Simple math statement - problem  ("Postgres User" <postgres.developer@gmail.com>)
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The question:
>
> How can I write statements that returns a decimal?
>
>
billing=# select 1/100;
 ?column?
----------
        0
(1 row)

As you said ...

So make everything decimal:
billing=# select 1.0/100.0;
        ?column?
------------------------
 0.01000000000000000000

Or:
billing=# select 1::decimal/100::decimal;
        ?column?
------------------------
 0.01000000000000000000

I think that when you use integers you lose precision right out the gate. Others can provide better insight I hope ...

HTH,

Greg Williamson
Senior DBA
GlobeXplorer LLC, a DigitalGlobe company

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