I have a field (named as time, but type is TEXT) in my Sqlite Database. In current format of that column is YYYY:MM:DD_HH:MM (as 2011:11:01_11:30 ). Now I have
YYYY:MM:DD_HH:MM
Its best practice to use long data type for date-time value in-spite of text.
Then you can use it in ur code simply by calling Date class constructor to get ur Date and Time.
This makes ur sorting operation simply easy.