Android Sqlite創建語法錯誤

Question

我似乎無法找出我在這裏做了什麼錯誤。似乎在createNewTable方法中的create命令中出現語法錯誤。

的Android SQLite的插入錯誤（語法錯誤代碼1）

我已經添加了我的數據庫代碼：

private static final String KEY_DATE = "date"; 
private static final String KEY_TIME_IN = "timeCheckIn"; 
private static final String KEY_TIME_OUT = "timeCheckOut"; 
private static final String KEY_LATITUDE_IN = "latCheckIn"; 
private static final String KEY_LONGITUDE_IN = "longCheckIn"; 
private static final String KEY_LATITUDE_OUT = "latCheckOut"; 
private static final String KEY_LONGITUDE_OUT = "longCheckOut"; 

public void createNewTable(){ 
    SQLiteDatabase db = this.getWritableDatabase(int _id); 
     Log.v("Database", "Adding Check in table: " + _id); 
     String CREATE_TABLE = " CREATE TABLE " + Integer.toString(_id) + "(" 
       + KEY_DATE + " TEXT," + KEY_TIME_IN + " TEXT," + KEY_TIME_OUT + " TEXT," 
       + KEY_LATITUDE_IN + " REAL," + KEY_LONGITUDE_IN + " REAL," + KEY_LATITUDE_OUT + " REAL," 
       + KEY_LONGITUDE_OUT + " REAL" + ")"; 
     db.execSQL(CREATE_TABLE);} 

我logcat的錯誤如下：

Caused by: android.database.sqlite.SQLiteException: near "1": syntax error (code 1): , while compiling: CREATE TABLE 1(date TEXT,timeCheckIn TEXT,timeCheckOut TEXT,latCheckIn REAL,longCheckIn REAL,latCheckOut REAL,longCheckOut REAL) 

Answer 1

您有一個以數字開頭的表名。不確定SQLite是否允許，但在MySQL中，如果你的表名是一個數字，那麼對於每個查詢，你需要用雙引號指定表號。嘗試給表名添加前綴

Answer 2

SQLite告訴你不允許非轉義的表名以數字開頭，在本例中爲數字1.如果要使用數字，則必須使用括號轉義表名，例如所以

String CREATE_TABLE = " CREATE TABLE [" + Integer.toString(_id) + "] (" 
     + KEY_DATE + " TEXT," + KEY_TIME_IN + " TEXT," + KEY_TIME_OUT + " TEXT," 
     + KEY_LATITUDE_IN + " REAL," + KEY_LONGITUDE_IN + " REAL," + KEY_LATITUDE_OUT + " REAL," 
     + KEY_LONGITUDE_OUT + " REAL" + ")";