Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
706 views
in Technique[技术] by (71.8m points)

sql - Random sorting query Access

I'm using this simple query to use a random sorting on a ms-access database:

SELECT pk FROM TABLE ORDER BY Rnd(pk) asc

And it's working fine when i test it with Microsoft Access 2010

However, when i call this query using classic asp, random sorting doesn't work.

Here's my code:

set Rs = Server.CreateObject("ADODB.Recordset")
Rs.ActiveConnection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("/dbfolder") & "dbname.mdb"

Rs.Source = "SELECT pk FROM TABLE ORDER BY Rnd(pk) asc"
Rs.CursorType = 3
Rs.CursorLocation = 2
Rs.LockType = 3
Rs.Open()

do while not Rs.eof
    'do stuff
    Rs.Movenext
loop
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

You just need to "salt" your random generator:

Rs.Source = "SELECT pk FROM TABLE ORDER BY Rnd(-Timer() * [pk]) Asc"

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...