Android：在表格中插入数据时出现错误

我在数据库中创建了2个表格。 1工作正常。 TABLE_NAME2在插入数据时发生错误，表示未找到列电子邮件。Android：在表格中插入数据时出现错误

DatabaseHelper.java：

 @Override 
public void onCreate(SQLiteDatabase db) { 
    db.execSQL("CREATE TABLE " + TABLE_NAME2 + "(" 
      + USER_NAME + "TEXT," 
      + USER_EMAIL + "TEXT," 
      + USER_MOBILE + "TEXT, " 
      + USER_PASS + "TEXT)"); 
    db.execSQL("CREATE Table " + TABLE_NAME1 + "("// + COL1 + " INTEGER PRIMARY KEY AUTOINCREMENT," 
      + COL2 + " TEXT," 
      + COL3 + " TEXT," 
      + COL4 + " TEXT," 
      + COL5 + " TEXT," 
      + COL6 + " TEXT," 
      + COL7 + " TEXT)"); 
    } 

    public boolean insertSignupDataDB(String name, String email, String mobile, String pass){ 

    SQLiteDatabase db = this.getWritableDatabase(); 
    ContentValues contentValues = new ContentValues(); 
    contentValues.put(USER_NAME, name); 
    contentValues.put(USER_EMAIL, email); 
    contentValues.put(USER_MOBILE, mobile); 
    contentValues.put(USER_PASS, pass); 

    long result = db.insert(TABLE_NAME2, null, contentValues); 
    if (result==-1){ 
     return false; 
    } 
    else 
     return true; 
}

日志：

（1）表注册没有EMAIL 06-08 21列命名为：00：51.306 15019-15019/com.mgm.manish。（EMAIL，EMAIL，EMAIL，EMAIL，EMAIL，DISCUSSION网站管理员的问题及答案EMAIL的错误插入EMAIL =错误插入EMAIL = abc NAME = abc PASSWORD = abc MOBILE = abc android.database.sqlite.SQLiteException：表注册没有名为EMAIL的列（代码1） NAME，PASSWORD，MOBILE）VALUES（？，？，？，？）

请解决此问题

来源

2016-06-08 ManishPrajapati

表注册有没有指定的列EMAIL，你肯定在创建表时定义此列？清理数据库（卸载应用程序）并尝试再次安装并查看。 – kosa

USER_EMAIL的值是多少？它可能不是“电子邮件”。验证 – Jimmy

值仅为EMAIL。即使在卸载并重新安装应用程序之后，也是如此。 – ManishPrajapati

从这个页面我将数据发送到DatabaseHelper Class来插入数据。它显示敬酒“成功注册”，但在日志中显示错误，也不会导航到LoginActivity类。它正在导航到MainActivity。即使其他部分不工作。当我把不同的密码给错误应用程序停止。

if(etSignPass.getText().toString().equals(etSignConPass.getText().toString())){ 

       boolean queryResult = dbHelper.insertSignupDataDB(etSignName.getText().toString(), 
         etSignEmail.getText().toString(), etSignMobile.getText().toString(), etSignPass.getText().toString()); 
       if(queryResult=true){ 
        Toast.makeText(SignUp.this, "Successfully Signed up", Toast.LENGTH_SHORT).show(); 

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { 
         navigateUpTo(new Intent(SignUp.this,LoginActivity.class)); 
        } 

       } 
       else{ 
        Toast.makeText(SignUp.this, "Error", Toast.LENGTH_SHORT).show(); 
       } 

      } 

      else{ 
       etSignConPass.setBackgroundColor(Color.RED); 
       onClicSignUp(); 
      } 
     }

来源

2016-06-08 17:02:40 ManishPrajapati

这是DatabaseHelper.java的完整代码

public class DatabaseHelper extends SQLiteOpenHelper { 

public static final String DATABASE_NAME = "abc.db"; 
public static final String TABLE_NAME1 = "table1"; 
public static final String COL2 = "col1"; 
public static final String COL3 = "Date"; 
public static final String COL4 = "Cost"; 
public static final String COL5 = "loc1"; 
public static final String COL6 = "loc2"; 
public static final String COL7 = "Description"; 

public static final String TABLE_NAME2 = "signup"; 
public static final String USER_NAME = "NAME"; 
public static final String USER_EMAIL = "EMAIL"; 
public static final String USER_MOBILE = "MOBILE"; 
public static final String USER_PASS = "PASSWORD"; 

public DatabaseHelper(Context context) { 
    super(context, DATABASE_NAME, null, 1); 


} 

@Override 
public void onCreate(SQLiteDatabase db) { 
    db.execSQL("CREATE TABLE " + TABLE_NAME2 + "(" 
      + USER_NAME + "TEXT," 
      + USER_EMAIL + "TEXT," 
      + USER_MOBILE + "TEXT, " 
      + USER_PASS + "TEXT)"); 
    db.execSQL("CREATE Table " + TABLE_NAME1 + "("// + COL1 + " INTEGER PRIMARY KEY AUTOINCREMENT," 
      + COL2 + " TEXT," 
      + COL3 + " TEXT," 
      + COL4 + " TEXT," 
      + COL5 + " TEXT," 
      + COL6 + " TEXT," 
      + COL7 + " TEXT)"); 
    } 



    @Override 
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
    db.execSQL("DROP TABLE IF EXISTS " +TABLE_NAME1); 
    db.execSQL("DROP TABLE IF EXISTS " +TABLE_NAME2); 
    onCreate(db); 


} 

public boolean insertHomeDataDB(String locName, String date, String cost, String startLoc, String endLoc, String description){ 
    SQLiteDatabase db = this.getWritableDatabase(); 
    ContentValues contentValues = new ContentValues(); 
    contentValues.put(COL2, locName); 
    contentValues.put(COL3, date); 
    contentValues.put(COL4, cost); 
    contentValues.put(COL5, startLoc); 
    contentValues.put(COL6, endLoc); 
    contentValues.put(COL7, description); 
    //contentValues.put(COL8, userId); 

    long result = db.insert(TABLE_NAME1, null, contentValues); 
    if (result==-1){ 
     return false; 
    } 
    else 
     return true; 
} 

public boolean insertSignupDataDB(String name, String email, String mobile, String pass){ 

    SQLiteDatabase db = this.getWritableDatabase(); 
    ContentValues contentValues = new ContentValues(); 
    contentValues.put(USER_NAME, name); 
    contentValues.put(USER_EMAIL, email); 
    contentValues.put(USER_MOBILE, mobile); 
    contentValues.put(USER_PASS, pass); 

    long result = db.insert(TABLE_NAME2, null, contentValues); 
    if (result==-1){ 
     return false; 
    } 
    else 
     return true; 
} 

public Cursor getAllHomeData(SQLiteDatabase db){ 
    Cursor res; 
    String[] projection = {COL2,COL3,COL4}; 
    res = db.query(TABLE_NAME1,projection,null,null,null,null,null); 
    return res; 

} 

public Cursor getAllProfileData(SQLiteDatabase db){ 
    Cursor res; 
    String[] projection={USER_NAME,USER_EMAIL,USER_MOBILE,USER_PASS}; 
    res = db.query(TABLE_NAME2, projection,null,null,null,null,null); 
    return res; 
}

}

来源

2016-06-08 17:38:54 ManishPrajapati

Android：在表格中插入数据时出现错误

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