Cursor cursor4 = db.rawQuery("select course from courses where acceptanceDate="+Acceptancedate+" and professional="+Professional+" and classs="+Classs+"",null);
提示错误 :E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.upload, PID: 13290
android.database.sqlite.SQLiteException: no such column: 软件工程 (code 1 SQLITE_ERROR): , while compiling: select course from courses where acceptanceDate=2015 and professional=软件工程 and classs=一班
这几个列都是有的 ,但是查找的时候还是提示找不到 ...有没有大神知道咋回事啊