TRIM([[BOTH | LEADING | TRAILING] [remstr] FROM] str)
Returns the string str with all remstr prefixes and/or suffixes removed. If none of the specifiers BOTH, LEADING or TRAILING are given, BOTH is assumed. If remstr is not specified, spaces are removed.
Spaces sind nur Spaces. Wenn du was anderes, z.B. White-Spaces (Space und Tab und Newline), entfernen lassen willst, solltest du die in remstr aufzählen.