Question

我需要从Sqlite中删除记录，我的表名是“TABLE_NAME”，列名是是“COLUMN1”，我将字符串值从MyTable.java传递给mySqliteHelper.java。
我需要删除这条记录我传递的值。这是我的示例代码给我提示或建议。任何帮助表示赞赏。

MyTable.java

AlertDialog.Builder alert = new AlertDialog.Builder(this);

    alert.setTitle("Delete Profile");
    alert.setMessage("You want to delete this profile?");       
    alert.setPositiveButton("Ok", new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface dialog, int whichButton)
        {         
            MySQLiteHelper m=new MySQLiteHelper(getBaseContext());
            m.deleteBName(other);   
            deleteMessage();
        }
    });

MySQLitHelper.java

public void deleteBName(String keyword) 
{
    try
    {
        SQLiteDatabase db=this.getWritableDatabase();
        db.delete(TABLE_NAME, COLUMN1+"="+keyword, null);   
    }
    catch(Exception e)
    {
        e.printStackTrace();
    }

}

Answer 1

使用类似的东西

db.delete(TABLE_NAME, "column_name=?", new String[]{String.valueOf(keyword)});

请参阅文档here

Answer 2

试试这段代码：

dbHelper.delete(DATABASE_TABLE_2, KEY_NAME + "=?", new String[] { myName })

如何使用SQLiteDatabase删除记录？

2 个答案: