asp下实现记录集内随意取记录的代码

发布时间：2023-09-26 15:03:50 所属栏目：Asp教程来源：

导读：记录集内随机取记录的代码

<%

' Moving to random record - Steven Jones' Extension

If Not(记录集名称.bof and 记录集名称.eof) Then

' reset the cursor to the beginning

If (记

记录集内随机取记录的代码

<%

' Moving to random record - Steven Jones' Extension

If Not(记录集名称.bof and 记录集名称.eof) Then

' reset the cursor to the beginning

If (记录集名称.CursorType > 0) Then

记录集名称.MoveFirst

Else

记录集名称.Requery

End If

记录集名称_totalrn = -1

记录集名称_totalrn = 记录集名称.RecordCount ' ony works on some recordsets, but much faster

If (记录集名称_totalrn = -1) Then ' and if it didn't work, we still have to count the records.

' count the total records by iterating through the recordset

记录集名称_totalrn=0

While (Not 记录集名称.EOF)

记录集名称_totalrn = 记录集名称_totalrn + 1

记录集名称.MoveNext

Wend

' reset the cursor to the beginning

If (记录集名称.CursorType > 0) Then

记录集名称.MoveFirst

Else

记录集名称.Requery

End If

End If

' now do final adjustments, and move to the random record

记录集名称_totalrn = 记录集名称_totalrn - 1

If 记录集名称_totalrn > 0 Then

Randomize

记录集名称.Move Int((记录集名称_totalrn + 1) * Rnd)

End If

End If

' all done; you should always check for an empty recordset before displaying data

%>

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