Android的SQLite的＆QUOT; BETWEEN＆QUOT;不包括或返回所有记录

问题描述

非常简单的任务这似乎试图让记录/行给定范围内，在Android应用程序有以下我的SQLite数据库：

Very simple task it would seem, trying to get a given range of records/rows in my SQLite db in Android app with the following :

String[] projection = {"_id"};
String selection = "_id between ? and ?";
String[] selectionArgs = {"1", "10"};

queryBuilder.query(db, projection, selection, selectionArgs, null, null, null);

通过上述selectionArgs两个如果我ARG变更为别的，我发现了一大堆（整组记录/行），如果没有条件，我想起来了两排，一排1和10。一直敲打我的头一天为什么这个工作它的方式，或许有一些了解使用SQLite中的特别的东西？任何意见/帮助不大AP preciated。

With the above selectionArgs I'm getting just the two rows, row 1 and 10. If I change arg to anything else I'm getting the whole lot (entire set of records/rows) as if there was no condition. Been banging my head for a day why this works the way it does, perhaps there's some special thing to know about the use of "between" in SQLite ? Any comments/help much appreciated.

推荐答案

您可以使用此code。

You can use this code.

private SQLiteDatabase productDatabase;
   public Cursor get_result(){
   Cursor c;
   String sql = "SELECT * FROM " + tableName +"WHERE _id BETWEEN" + value1 +"AND" + value2;
   c = productDatabase.rawQuery(sql, null);
}

Cursor cursor=get_result();
    if(cursor.moveToNext()){
    Log.d("count of product id="+cursor.getString(0));
}

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