Question

我正在开发一个应用程序，因为我必须更新一些列，我为更新查询编写语法，但它显示语法错误请告诉我我错误的位置

我的更新查询

 public String  updateEntry(UserDetailsDTO userDetails)
 {
     StringBuilder sb = new StringBuilder();
     Cursor cur= myDB.rawQuery("UPDATE "+UserDBHandler.USER_TABLE+" SET 
             "+UserDBHandler.DOOR_NUMBER+" = '"+userDetails.getDoorNo()
                             +","+UserDBHandler.LANDMARK+" = 
             '"+userDetails.getLandMark()+","+UserDBHandler.STREET+" = 
              '"+userDetails.getStreet()+
                             ","+UserDBHandler.CITY+" =  
       '"+userDetails.getCity()+","+UserDBHandler.STATE+" = '"+userDetails.getState()+"'   
       WHERE "+ 
                               UserDBHandler.USER_NAME+" = ?",new 
      String[]{userDetails.getUserName()});
     if(cur.moveToFirst()){

        UserDetailsDTO comb_off_job = new UserDetailsDTO();

                comb_off_job.setDoorNo(cur.getString
                (cur.getColumnIndexOrThrow(UserDBHandler.DOOR_NUMBER)));

                comb_off_job.setLandMark(cur.getString
                (cur.getColumnIndexOrThrow(UserDBHandler.LANDMARK)));

                comb_off_job.setStreet(cur.getString
                (cur.getColumnIndexOrThrow(UserDBHandler.STREET)));

                comb_off_job.setCity(cur.getString
                (cur.getColumnIndexOrThrow(UserDBHandler.CITY)));

                comb_off_job.setState(cur.getString
                (cur.getColumnIndexOrThrow(UserDBHandler.STATE)));
        sb.append(comb_off_job);
     }

    return sb.toString(); 
 }

在我的活动中

userDetailsdto.setDoorNo(doorNumber);
userDetailsdto.setLandMark(Landmark);
userDetailsdto.setStreet(Street);
userDetailsdto.setCity(City);
userDetailsdto.setState(State);
userDetailsdto.setUserName(uName);
userDetalidImpl.updateEntry(userDetailsdto);

Answer 1

是的，你有语法错误，因为Manju Zi在查询中说缺少'。

Cursor cur= myDB.rawQuery("UPDATE "+UserDBHandler.USER_TABLE+" SET 
             "+UserDBHandler.DOOR_NUMBER+" = '"+userDetails.getDoorNo()
                             +","+UserDBHandler.LANDMARK+" = 
             '"+userDetails.getLandMark()+","+UserDBHandler.STREET+" = 
              '"+userDetails.getStreet()+
                             ","+UserDBHandler.CITY+" =  
       '"+userDetails.getCity()+","+UserDBHandler.STATE+" = '"+userDetails.getState()+"'   
       WHERE "+ 
                               UserDBHandler.USER_NAME+" = ?",new 
      String[]{userDetails.getUserName()});

检查一下。可以帮到你吗

 Cursor cur= myDB.rawQuery("UPDATE "+UserDBHandler.USER_TABLE+" SET "
                 +UserDBHandler.DOOR_NUMBER+" = '"+userDetails.getDoorNo()+"'"
                                 +","+UserDBHandler.LANDMARK+" = '"+userDetails.getLandMark()+"'"+","+UserDBHandler.STREET+" = '"+userDetails.getStreet()+"'"+
                                 ","+UserDBHandler.CITY+" =  '"+userDetails.getCity()+"'"+","+UserDBHandler.STATE+" = '"+userDetails.getState()+"' WHERE "+ 
                                   UserDBHandler.USER_NAME+" = ?",new 
          String[]{userDetails.getUserName()});

Answer 2

检查此更新的代码：

Cursor cur= myDB.rawQuery("UPDATE " + UserDBHandler.USER_TABLE + 
            " SET" + UserDBHandler.DOOR_NUMBER + " = '" + userDetails.getDoorNo() + "' ," 
                + UserDBHandler.LANDMARK + " = '" + userDetails.getLandMark() + "' ,"
                + UserDBHandler.STREET + " = '" + userDetails.getStreet() + "' ,"
                + UserDBHandler.CITY + " = '" + userDetails.getCity() + "',"
                + UserDBHandler.STATE + " = '" + userDetails.getState() + "' WHERE " 
                + UserDBHandler.USER_NAME + " = ?",new 
     String[]{userDetails.getUserName()});

PS：Amol Sawant 96 Kuli更快

更新sqlite中的列

2 个答案: