Dates are stored in DB as such: \"2011-05-26 11:00:00\" in a datetime field. I\'d like to find all rows where the date is greater than the first of this month, ie: 2011-05-0
You can use TIMESTAMPDIFF function in MySQL to compare time, FROM_UNIXTIME function to format Unix timestamp as date.
More mysql data and time functions and examples are available in MySQL Reference Manual date and time function .