As all these softwares are given by a single site, I had expected that they were developed by the same person or same group of persons.
Yes, you are right, all this software was written by me.
So, it was natural to think that they might be using the same database technology and structure.
Three this utility use SQLite as database, but different structures of database according to its goals.
Frankly, all your three software use different database nomenclature, different folders, different structures, and that is quite confusing to users.
Do you really think that different software should (may?) use identical folders. files or database structures???
As Flashnote and clipdiary are simpler and free versions, a user of yours is bound to try them first and then, on getting encouraged, he might go to use flashpaste and buy it. In that case, it is a natural expectation of such users that whatever databases they had collected in flashnote/ clipdiary during their earlier stint of use, can be imported to flashpaste. If not, that itself would be a reason enough for people not to use flashpaste.
You are first user that want such thing. I have 3000 record in clipdiary - do you think I want export them to Flashpaste?
btw, I could open all flashnote/ clipdiary/ flashpaste databases using free SQLite Format 3 readers, and even export/ import the data to text/ html/ cvs formats. However, the clipboard management part of data among the other is just not visible correctly, may be because you might have used some technique or encryption for that.
Yes, it is encrypted. You can use function "sqlite3_decode_binary" from this wrapper http://www.codeproject.com/database/CppSQLite.asp
to decode clipdiary data, if you want.