[sqlite] problem with sqlite3_exec method

Hello, I'm sorry but even after looking in the archives I haven't found any help on this subject : I'm testing a very simple C program that uses SQLite. The sqlite3_open method works fine and the database opens normaly, but then I get an error coming from the sqlite3_exec method :

[sqlite] unsupported file format

Hello, After compiling I'm testing the C example program provided in the quick start page, just to get into the C/C++ interface for SQLite. ./exprog testdb 'select * from tbl1' The database file opens normaly, but I get an error coming from the sqlite3_exec method : SQL error: unsupported file