ASP下批量删除数据的两种方法

方法一：


代码如下:

id=request.form("checkbox")
id=Split(id,",")
shu=0
for i=0 to UBound(id)
sql="select * from jiang_fname where id="&id(i)
set rs=conn.execute(sql)
if not rs.eof then
delete_file(rs("fname"))
end if
rs.close
set rs=nothing
sql="delete from jiang_fname where id="&id(i)
conn.execute sql,shu1
shu=shu+1
next

if shu>0 then
response.Write("<script>alert('删除成功');location.href='"&url&"';</script>")
else
response.write("<Script>alert('删除失败');javascript: history.back();</script>")
end if
conn.close
set conn=nothing

方法二：巧用in关键字实现数据的批量删除
managenews.asp


代码如下:

<!--#include file="conn.asp"-->
<%'数据库的连接文件我就不多说了%> <html>
<head>
<title>管理新闻</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="../index/style.css" type="text/css">
<script>
function del () //用于判断记录有没有选中的函数
{
var flag=true;
var temp="";
var tmp;
if((document.form1.answer.length+"")=="undefined") {tmp=1}else{tmp=document.form1.answer.length}
if (tmp==1){
if (document.form1.answer.checked){
flag=false;
temp=document.form1.answer.value
}
}else{
for (i=0;i<document.form1.answer.length;i++) {
if (document.form1.answer[i].checked){
if (temp==""){
flag=false;
temp=document.form1.answer[i].value
}else{
flag=false;
temp = temp +","+ document.form1.answer[i].value
}
}
}
}
if (flag){ alert("对不起，你还没有选择！")}
else{ name=document.form1.name.value
//alert(name)
if (confirm("确实要删除？")){
window.location="delnews.asp?id=" + temp;
}
}
return !flag;
}
</script>
</head>
<body>
<script language=Javascript>
function checkall(all)//用于判断全选记录的函数
{
var a = document.getElementsByName("answer");
for (var i=0; i<a.length; i++) a[i].checked = all.checked;
}
</script>
<%
set rs=server.createobject("adodb.recordset")
sql="select * from news order by addtime desc"
rs.open sql,conn,1,3 %>
<% if rs.eof then %>
<table width="50%" border="0" align="center" ID="Table2">
<tr>
<td align="center">
没有新闻！
</tr>
</table>
<% else %>
<form method="POST" id=form1 name=form1>
<table width="90%" border="0" align="center" class="tabDocborder" ID="Table3">
<tr>
<td>
<table width="80%" align="center" id=TabDocMain border='1' cellspacing='0' cellpadding='0' bordercolorlight='#82b4dd' bordercolor='#b6d3eb' 　　　　class="TabDocMain">
<thead>
<tr>
<td colspan="7" align="center">
新闻管理中心
</td>
</tr>
</thead>
<tbody>
<tr>
<td align=center>
删除框
</td>
<td align=center>
新闻标题
</td>
<td align=center>
发布时间
</td>
<td align=center>
管理
</td>
</tr>
<%
do while not rs.eof
%>

　　<tr>
<td align=center><input type="checkbox" name="answer" value="<%=rs("id")%>" ID="Checkbox1">
</td>
<td align=left><%If Len(rs("title"))<=30 Then%><%=rs("title")%><%else%>
<%=(Left(rs("title"),30))%>...
<%end if %></td>
<td align=left><%=rs("addtime")%></td>
<td align=center><a href="editnews.asp?id=<%=rs("id")%>">编　辑</a></td>
</tr>
</tbody>
<%
rs.movenext
loop
%>

　　<tr>
<td colspan="7" align="center">
<input type="checkbox" name="chkall" value="on" onclick="checkall(this)" ID="Checkbox2">选中所有的显示新闻　　　
<input type="button" name="btnDelete" value="删除" style='font-family: 宋体; font-size: 9pt;' onclick="del()" ID="Button1">
</td>
</tr>
</table>
</form>
</td>
</tr>
<%end if%>
</table>
<% set rs=nothing
conn.close
set conn=nothing
%>
</body>
</html>

delnews.asp文件


代码如下:

<!--#include file="conn.asp"-->
<%
arrdel=Request("id")
'Response.Write arrdel
sql="delete from news where id in ("&arrdel&")"
'Response.Write sql
conn.Execute sql
set conn=nothing
response.write"<SCRIPT language=JavaScript>alert('删除成功！');"
response.write"javascript: history.go(-1)</SCRIPT>"
response.end
%>