Re: How can I simply substatue a value in a query?

Bryan Encina wrote:

>-----Original Message-----
>From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Roy Souther
>Sent: Monday, June 27, 2005 10:17 AM
>To: pgsql-sql@postgresql.org
>Subject: [SQL] How can I simply substatue a value in a query?
>
>
>I want to do a simple substatution of a value in a query. For example I have a boolean field that wil return t or f
forTrue and False. I would like it to return Yes or No. I don't want to have a 2x2 table to look up the output. I don't
wantto use stored procedue.
 
>
>I think there is a better way, somthing very simple but I cannot remember what it is.
>
>-------------
>
>I think a CASE statement is what you want.  Check the Conditional Expressions section of the docs at:
>http://www.postgresql.org/docs/8.0/interactive/functions-conditional.html
>HTH,
>Bryan Encina
>
>
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>  
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select case "field"
when 'T' then 'Yes'
when 'F' then 'No'
else null end
from  ...