sqlite异常错误SELECT命令

Question

Caused by: android.database.sqlite.SQLiteException: near "FROM": syntax error (code 1): , while compiling: SELECT _id, FROM TRACKS WERE _id=9

 String test = "SELECT _id, FROM TRACKS WERE _id="+"9";

    Cursor cursor = database.rawQuery(test, null);

没看到点:(任何帮助

我的声明中可能存在错误但无效

Answer 1

  

SELECT _id，FROM TRACKS WERE _id =＆＃34; +＆＃34; 9＆＃34;

＆＃39;呈＆＃39;应该是WHERE

Answer 2

id和WERE之后的逗号不应为WHERE。 还要考虑将[rawQuery（）]（http://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html#rawQuery(java.lang.String，java.lang.String []，android.os.CancellationSignal）]与selectionArgs一起使用，以避免像{{{1}中那样连接查询和值。 1}}。