I have a table that contains float values.
+ id | value | +--------|---------| + 1 | 19.22 | + 2 | 32.333 | + 3 | 1.
This regex (MySQL 5.0+) worked for me, based on the data you provided:
SELECT t.* FROM YOUR_TABLE t WHERE t.`value` REGEXP '[0-9]+.[0-9][0-9][0-9]+'
Reference: