Find on text field

I’m trying to do a find that selects all the records of a single table that have a “not blank” text field, but I’m not been able to find and easy way to do it!!.
If I go in find mode, put an % in the text field to examine and ask for a search.. it does NOT work, and I do not know how to make a search for text fields bigger than “AAA” or smaller than “BBB” or e equal to " " ?

thank you in advance!!

btw: my table are on mysql

I guess you already read the other thread about this. :wink:

For other readers, check :

Designing forms > Search criteria