char* sqlite3_mprintf( const char* format, ... );
format
An sqlite3_snprintf() style message
formatting string.
Message formatting parameters.
A newly allocated string built from the given parameters.
This function builds a formatted string and returns it in a
newly allocated memory buffer. If the required memory allocation
fails, a NULL may be returned. The application is responsible
for releasing the returned buffer with sqlite3_free().
This function supports the same extended formatting options as
sqlite3_snprintf().