[英]Raw Query in Android SQLite - INSERT OR IGNORE
I'm having an issue inputting information into a Sqlite database on the app I'm creating. 我在创建的应用程序上将信息输入Sqlite数据库时遇到问题。 I was using the help of the Cursor before.
我以前是在游标的帮助下使用的。 I am used to MySQL although clearly not 'used to' that well.
我已经习惯了MySQL,尽管显然不能“很好地”使用。
I am trying to add to the database from a file. 我正在尝试从文件添加到数据库。 I had this working before but it would be added with the Cursor.
我以前曾做过这项工作,但它将与Cursor一起添加。 I was then told that in order to make it so I could add new information to the file and have the app ONLY add the new information into the database I should use INSERT OR IGNORE.
然后有人告诉我,为了做到这一点,我可以将新信息添加到文件中,并使应用程序仅将新信息添加到数据库中,所以我应该使用INSERT或IGNORE。
Is this the correct syntax? 这是正确的语法吗? I currently am not having any information inserted for whatever reason...
无论出于何种原因,我目前都没有插入任何信息...
ourDatabase.rawQuery("INSERT OR IGNORE INTO " + DATABASE_TABLE + " ("+KEY_CLASS+",
" + KEY_QUESTION+ ") VALUES ('" + qclass + "', '" + question + "');", null);
This is my database: 这是我的数据库:
"CREATE TABLE " + DATABASE_TABLE + " (" +
KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
KEY_CLASS + " TEXT NOT NULL, " +
KEY_QUESTION + " TEXT NOT NULL UNIQUE);
Thanks for the help in advance! 我在这里先向您的帮助表示感谢!
Your query seems right but try the one below anyway 您的查询似乎正确,但还是请尝试以下查询
ContentValues insertValues = new ContentValues();
insertValues.put(KEY_CLASS, qclass);
insertValues.put(KEY_QUESTION, question);
yourDbName.insertWithOnConflict(DATABASE_TABLE, null, insertValues, SQLiteDatabase.CONFLICT_IGNORE);
KEY_QUESTION + " TEXT NOT NULL UNIQUE);";
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