SQL & PL/SQL

Hi,
We're using Oracle 11.1.

We have a table of zip codes.

We have multiple rows for each zip code because we have different neighborhoods that use the same zip code.

We want to reduce the rows to one row per zip code. But they told use they want to keep the fields that differ (ex. neighborhood).

So they said " Just take the first value of each."

This code does reduce the zip codes to one row per zip code but as you can see I've replaced the field values with the field name.

SELECT distinct  ZIPCODE, CITY, STATE, COUNTY, AREACODE, 'CITYTYPE', CITYALIASABBREVIATION, 'CITYALIASNAME', LATITUDE, LONGITUDE, TIMEZONE, ELEVATION, COUNTYFIPS, DAYLIGHTSAVING, PREFERREDLASTLINEKEY, CLASSIFICATIONCODE,
           MULTICOUNTY, STATEFIPS, 'CITYSTATEKEY', 'CITYALIASCODE', 'PRIMARYRECORD', CITYMIXEDCASE, 'CITYALIASMIXEDCASE', STATEANSI, COUNTYANSI
    FROM   zip_code
GROUP BY   ZIPCODE, CITY, STATE, COUNTY, AREACODE, CITYTYPE, CITYALIASABBREVIATION, LATITUDE, LONGITUDE, TIMEZONE, ELEVATION, COUNTYFIPS, DAYLIGHTSAVING, PREFERREDLASTLINEKEY, CLASSIFICATIONCODE, MULTICOUNTY, STATEFIPS,
           CITYALIASCODE, PRIMARYRECORD, CITYMIXEDCASE, STATEANSI, COUNTYANSI
order by zipcode; 

How would I take either one record per zip code with the first value of those fields or

How would I take the first record for each zip code?

either way works for me.

Thanks,