Re: Problem with a lookup table! Please help.

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От Jean-Luc Lachance
Тема Re: Problem with a lookup table! Please help.
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Msg-id 3DF50C6E.2D94936D@nsd.ca
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Ответ на Problem with a lookup table! Please help.  ("Chris Jewell" <vs0u8055@liv.ac.uk>)
Список pgsql-sql
Use the AS keyword to introduce a column alias.

Select thisverlongtablename.thefirstfield as title, ... from 

JLL

Josh Berkus wrote:
> 
> Chris,
> 
> > In my capacity as a vet student, I'm trying to create a database of
> antibiotics.  The way that I have set it up so far is to have one main table
> listing the antibiotics versus their respective efficacies against the four
> major groups of bacteria.  Due to the way that my PHP frontend works, I have
> assigned a number to the efficacy - 1 being excellent and 5 being poor
> efficacy against the particular bacterium.  However, I now want to have a new
> table which converts numbers into words.  The problem is this, if I join the
> main table with the "translation" lookup table, the column names for each of
> the four categories in the main default to the column name in the lookup
> table and hence are all the same.  What SQL expression should I use to
> translate the cryptic numbers into plain english whilst preserving the column
> headings in the main table?
> 
> Please post your table definitions as SQL statements.
> 
> --
> -Josh Berkus
>  Aglio Database Solutions
>  San Francisco
> 
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