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所以我試圖製作一個名稱,卡路里和蛋白質列的數據庫。下面是create語句:帶有多列的Android SQLite數據庫
public class SQLHelp extends SQLiteOpenHelper{
static final String DATABASE_NAME = "Food.db";
static final String TABLE_FOOD = "food";
static final String NAME_COLUMN = "FoodName";
static final String CALORIE_COLUMN = "Calorie";
static final String PROTEIN_COLUMN = "Protein";
static final String FAT_COLUMN = "Fat";
static final String COLUMN_ID = "id";
public SQLHelp(Context c){
super(c, DATABASE_NAME, null, 1);
}
public void onCreate(SQLiteDatabase db){
String makeTable = "CREATE TABLE " + TABLE_FOOD + "("
+ NAME_COLUMN + " TEXT," + CALORIE_COLUMN + " INTEGER,"
+ PROTEIN_COLUMN + " INTEGER" + ")";
db.execSQL(makeTable);
}
的值添加到下面的方法數據庫:
public void createFood(Food f) {
ContentValues values = new ContentValues();
values.put(SQLHelp.CALORIE_COLUMN, f.getCalories());
values.put(SQLHelp.PROTEIN_COLUMN, f.getProtein());
values.put(SQLHelp.NAME_COLUMN, f.getName());
database.insert(SQLHelp.TABLE_FOOD, null,
values);
}
當嘗試添加,logcat的給我的SQLiteException說,蛋白質欄沒有按」不存在。更奇怪的是,當我用代碼註釋掉蛋白質線時,一切正常。
謝謝!
請張貼代碼爲你的'Food'類,espeically您使用這裏的干將。從logcat發佈堆棧跟蹤,至少直到第一行顯示您寫的東西的方法名稱。 –