The SQL function trim(…)
removes space characters from both ends of a string.
SELECT TRIM(' traveling spaces ')
FROM …
The result of the example is the text 'traveling space'
with the leading and trailing spaces removed.
Options: trim( [ [leading|trailing] [<char>] FROM ] …)
Only one end: trim(leading from …)
, trim(trailing from …)
Another character: trim(<char> from …)
From both ends (default): trim(both from …)
The trim()
function is defined in ISO/IEC 9075:2016-2 as mandatory feature E021-09, “TRIM
function”.
You can’t catch up on 20 years of SQL evolution in one day. Subscribe the newsletter via E-Mail, Twitter or RSS to gradually catch up and to keep modern-sql.com on your radar.
The essence of SQL tuning in 200 pages
Buy now!
(paperback and/or PDF)
Paperback also available at Amazon.com.
Markus offers SQL training and consulting for developers working at companies of all sizes.
Learn more »