I have tried with and without full path. Same result. I have rhe database in sae directory. The database file is made with SQLightManager. I have attached my application in a zip-file. The file sqlite3.dll is removed from directory because of size.
for me it opens with out problems see attachment. I suggest to
1) make sure that no other database with the same name can be found and opened some times the current directory might not point to your application's directory.
2) delete the query, ds and grid and place them again. and make sure they are not double clicked or changed in any way other than the link between them.
In my case I used the sqlitespy to open the database and make sure the table existed I created the select statement from that app and executed it on that app too then copied the select I knew it worked on the qeury.sql property and it openeded fine. Is there a chance that the name in your sql does not have the correct characters? they might look the same but some character is a national character instead of the english one?