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// My getBus Function
Cursor getBus(String source, String dest)
{
SQLiteDatabase db=this.getReadableDatabase();
Cursor cur=db.rawQuery("SELECT b.BusName FROM BusTable b, (SELECT Route , RBusName FROM RouteBusTable WHERE Route IN ("+source+")) b1, (SELECT Route , RBusName FROM RouteBusTable WHERE Route IN ("+dest+")) c WHERE b.BusName IN (b1.RBusName) AND b.BusName IN (c.RBusName)", new String [] {});
return cur;
}
// Retreiving it like this
Cursor a = dbHelper.getBus("1", "12");
a.moveToFirst();
while (!a.isAfterLast())
{
String Name = a.getString(0);
Toast.makeText(AddEmployee.this, "Stops Are "+ Name , Toast.LENGTH_LONG).show();
a.moveToNext();
}
它停止应用程序。我做错了什么? 子查询或检索中是否有任何错误?android sqlite中的子查询,不工作
1.柱痕迹。 2.尝试在字符串周围放置撇号,例如'IN('“+ source +”'))b1' – Ricky 2014-11-23 14:20:08