Question

这是我的更新查询

  ContentValues value = new ContentValues();
            value.put(DBhelper.Amount, txtBudget.getText().toString());



            db = helper.getWritableDatabase();

            db.update(DBhelper.TABLE1, value," "+DBhelper.Description+"='"+value_in_tv,null);
            db.close();

            fetchData2();
            Toast.makeText(this, "Update Successfully", Toast.LENGTH_LONG).show();
            clearfield();

单击按钮进行更新时，会发出致命异常错误。

value_in_tv这是我从另一个班级获得的价值

 Bundle data_from_list= getIntent().getExtras();
        value_in_tv= data_from_list.getString("passed data key");
        txr.setText(value_in_tv);

错误：

10-18 20:45:57.812  18632-18632/com.example.username.weddingplanning
E/AndroidRuntime﹕ FATAL EXCEPTION: main
    android.database.sqlite.SQLiteException: unrecognized token: "'suba" (code 1): , while compiling: UPDATE Category SET amount=?
WHERE  description='suba
            at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native
Method)
            at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1113)
            at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:686)
            at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
            at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
            at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
            at android.database.sqlite.SQLiteDatabase.updateWithOnConflict(SQLiteDatabase.java:1669)
            at android.database.sqlite.SQLiteDatabase.update(SQLiteDatabase.java:1620)
            at com.example.username.weddingplanning.addbudget.checkIfRowPresent(addbudget.java:134)
            at com.example.username.weddingplanning.addbudget.onClick(addbudget.java:114)
            at android.view.View.performClick(View.java:4439)
            at android.view.View$PerformClick.run(View.java:18398)
            at android.os.Handler.handleCallback(Handler.java:725)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:176)
            at android.app.ActivityThread.main(ActivityThread.java:5299)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

您忘记了where子句中的结束'：

 db.update(DBhelper.TABLE1, value," "+DBhelper.Description+"='"+value_in_tv + "'",null)

SQLiteException：UPDATE语句中

1 个答案: