android.database.sqlite.SQLiteException:table数据没有名为_Y的列

Question

我使用我的数据库时遇到问题.请检查一下:

// Database Name
private static final String DATABASE_NAME = "Poloha";

// Data table name
private static final String DATA = "Data";

// Data Table Columns names
private static final String KEY_Y= "Y";
private static final String KEY_X= "X";
private static final String KEY_ID = "_id";
private static final String KEY_NAZEV = "Nazev";
private static final String KEY_MAC = "MAC";

public void onCreate(SQLiteDatabase db) 
{
    String CREATE_CONTACTS_TABLE = "CREATE TABLE IF NOT EXISTS" 
            + DATA + "("
            + KEY_ID + " INTEGER PRIMARY KEY autoincrement,"
            + KEY_NAZEV + " TEXT NOT NULL,"
            + KEY_MAC + " TEXT NOT NULL," 
            + KEY_X + " TEXT NOT NULL," 
            + KEY_Y + " TEXT NOT NULL);" ;
    db.execSQL(CREATE_CONTACTS_TABLE);
}

现在我想使用以下方法添加一些值:

db.pridejZaznam(new Data(1,1,1,"NAZEV_1","MAC_1"));
db.pridejZaznam(new Data(2,2,2,"NAZEV_2","MAC_2"));
db.pridejZaznam(new Data(3,3,3,"NAZEV_3","MAC_3"));
db.pridejZaznam(new Data(4,4,4,"NAZEV_4","MAC_4"));

问题是,LogCat向我显示了这个错误:

02-22 10:33:26.336: E/SQLiteLog(813): (1) table Data has no column named Y
02-22 10:33:26.375: E/SQLiteDatabase(813): Error inserting Y=1 MAC=MAC_1 Nazev=NAZEV_1 _id=1 X=1
02-22 10:33:26.375: E/SQLiteDatabase(813): android.database.sqlite.SQLiteException: table Data has no column named Y (code 1): , while compiling: INSERT INTO Data(Y,MAC,Nazev,_id,X) VALUES (?,?,?,?,?)

知道我该怎么办？我检查了类似的错误,发现在创建表时只有一个缺少SPACE的解决方案但是如果我不是盲目的话,我没有任何遗漏.谢谢大家:)

Answer 1

public void onCreate(SQLiteDatabase db) 
{
    String CREATE_CONTACTS_TABLE = "CREATE TABLE IF NOT EXISTS" 
            + DATA + "("
            + KEY_ID + " INTEGER PRIMARY KEY," // and auto increment will be handled with                            primary key
            + KEY_NAZEV + " TEXT NOT NULL,"
            + KEY_MAC + " TEXT NOT NULL," 
            + KEY_X + " TEXT NOT NULL," 
            + KEY_Y + " TEXT NOT NULL);";
    db.execSQL(CREATE_CONTACTS_TABLE);
}