标题: ASP网页编程之在线紧缩Access数据库 [打印本页] 作者: 第二个灵魂 时间: 2015-2-16 00:25 标题: ASP网页编程之在线紧缩Access数据库 大家可以自己去看一看.可以说看得想呕吐.以前有次下了个动网来看.里面连基本内置函数的保护措施(函数没防御性)都没有.难怪经常补这个补那个了.可能现在.NET版会好点吧access|数据|数据库|紧缩|在线 While working on BuildDB/Buildapp online Demo, I developed a little function that will compact Access databases over the web. Here's a "no-frills" page that'll compact the databases for you.
One problem with Access databases is that "holes" are created when records are deleted, making the database fluffy and bloated. Compacting the database makes it lean and efficient again.
Note: This function/page can easily be combined with the Buildapp front end file navigation and search pages (Installment II), to create an application that'll make it easy to handle this formerly troublesome chore for all the databases on your machine/web site..
Function CompactDB(dbPath, boolIs97)
Dim fso, Engine, strDBPath
strDBPath = left(dbPath,instrrev(DBPath,"\"))
Set fso = CreateObject("Scripting.FileSystemObject")
If fso.FileExists(dbPath) Then
Set Engine = CreateObject("JRO.JetEngine")
If boolIs97 = "True" Then
Engine.CompactDatabase "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbpath, _
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDBPath & "temp.mdb;" _
& "Jet OLEDB:Engine Type=" & JET_3X
Else
Engine.CompactDatabase "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbpath, _
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDBPath & "temp.mdb"
End If
fso.CopyFile strDBPath & "temp.mdb",dbpath
fso.DeleteFile(strDBPath & "temp.mdb")
Set fso = nothing
Set Engine = nothing
CompactDB = "Your database, " & dbpath & ", has been Compacted" & vbCrLf
Else
CompactDB = "The database name or path has not been found. Try Again" & vbCrLf
End If
End Function
%>
<html><head><title>Compact Database</title></head><body>
<h2 align="center"> Compacting an Access database</h2>
<p align="center">
<form action=compact.asp>
Enter relative path to the database, including database name.<br><br>
<input type="text" name="dbpath"><br><br>
<input type="checkbox" name="boolIs97" value="True"> Check if Access 97 database
<br><i> (default is Access 2000)</i><br><br>
<input type="submit">
<form>
<br><br>
<%
Dim dbpath,boolIs97
dbpath = request("dbpath")
boolIs97 = request("boolIs97")
If dbpath <> "" Then
dbpath = server.mappath(dbpath)
response.write(CompactDB(dbpath,boolIs97))
End If
%>
</p></body></html>