On Mon, 2002-12-09 at 20:58, Chris Jewell wrote:
> ...
> 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?
You just need to name the columns:
SELECT t.antibiotic, e1.plain_english AS "Activity against grampos", e2.plain_english AS "Activity
againstgramneg", e3.plain_english AS "Activity against aerobes", e4.plain_english AS "Activity against
anaerobes" FROM tblantibiotics AS t, efficacy AS e1, efficacy AS e2, efficacy AS e3,
efficacyAS e4 WHERE t.activity_against_grampos = e1.efficacy_code AND t.activity_against_gramneg =
e2.efficacy_codeAND t.activity_against_aerobes = e3.efficacy_code AND t.activity_against_anaerobes =
e4.efficacy_code;
Note that you must use double quotes to quote identifiers, not single
quotes as you did in your table creation definitions, which won't work
in PostgreSQL.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight, UK http://www.lfix.co.uk/oliver
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======================================== "I beseech you therefore, brethren, by the mercies of God, that ye
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