Basic problem is checking if certain person isn't already in a table. It could be that someone other created this person, and wrote the name slightly different. Soundex is available, but gives a big difference if there are spaces between the characters or not [SOUNDEX('Van Der') <> SOUNDEX('Vander').
So i would like to trim that column first, before using the soundex function. But no internal function is available for trimming 'inside' spaces. How should i solve this problem ?