Question

I am trying to build the string with comma but I get extra space. How can I remove extra space between zipcode and country_name? Here is my string. Thank you for any suggestion.

SELECT
    (COALESCE(address + ', ', '') +
    COALESCE(city + ', ', '') +
    COALESCE(state_code + ' ', '') +
    COALESCE(zipcode + ' ', '') +
    COALESCE(country_name + '', '')) address
from table1
where a_id = 2

Here is the result:

tewt, test ct, DE 4444                 United States

Answer 1

You can use the RTRIM function which remove white space from right side of the variable. Check also LTRIM for the left cases.