下面是库中URLINDEX表：URL和Keywords字段分别添加了索引.
URL 文本 (索引:有(无重复))
Title 文本
Description 文本
Summary 文本
Keywords 文本(索引:有(无重复))
doquery.ASP
LEFTMARGIN=0 TOPMARGIN=0>
<%
dim act
act=request("act")
if(act="search") then
QueryString = Request.form( "QueryString" )
Querywords = Split( QueryString )
strIndent = " "
' 如果搜索为空则返回
If QueryString = "" Then
Response.Redirect( "default.ASP" )
End If
Session.timeout = 2
If IsObject(Session("sitesearch_conn")) Then
Set conn = Session("sitesearch_conn")
Else
Set conn = Server.CreateObject("ADODB.Connection")
conn.open "driver={Microsoft Access Driver (*.mdb)};dbq=" & Server.MapPath("database/SiteSearch.mdb"),"",""
Set Session("sitesearch_conn") = conn
End If
' 查询语句
sql = "SELECT * FROM [URLIndex] WHERE"
'搜索Description字段
sql = sql & " ( [Description] LIKE '%" & Querywords( 0 ) & "%'" ' First
For i = LBound( Querywords ) + 1 to UBound( Querywords )
If Querywords( i ) <> "" and UCase( Querywords(i) ) <> "OR" and UCase( Querywords(i) ) <> "AND" Then
If uCase( Querywords( i-1 ) ) = "OR" Then
sql = sql & " OR [Description] LIKE '%" & Querywords( i ) & "%'"
Else
sql = sql & " AND [Description] LIKE '%" & Querywords( i ) & "%'"
End If
End If
Next
' 搜索Keywords字段
sql = sql & " ) OR ( [Keywords] LIKE '%" & Querywords( 0 ) & "%'"
For i = LBound( Querywords ) + 1 to UBound( Querywords )
If Querywords( i ) <> "" and UCase( Querywords(i) ) <> "OR" and UCase( Querywords(i) ) <> "AND" Then
If uCase( Querywords( i-1 ) ) = "OR" Then
sql = sql & " OR [Keywords] LIKE '%" & Querywords( i ) & "%'"
Else
sql = sql & " AND [Keywords] LIKE '%" & Querywords( i ) & "%'"
End If
End If
Next
' 搜索Title字段
sql = sql & " ) OR ( [Title] LIKE '%" & Querywords( 0 ) & "%'"
For i = LBound( Querywords ) + 1 to UBound( Querywords )
If Querywords( i ) <> "" and UCase( Querywords(i) ) <> "OR" and UCase( Querywords(i) ) <> "AND" Then
If uCase( Querywords( i-1 ) ) = "OR" Then
sql = sql & " OR [Title] LIKE '%" & Querywords( i ) & "%'"
Else
sql = sql & " AND [Title] LIKE '%" & Querywords( i ) & "%'"
End If
End If
Next
' 搜索Summary字段
sql = sql & " ) OR ( [Summary] LIKE '%" & Querywords( 0 ) & "%'"
For i = LBound( Querywords ) + 1 to UBound( Querywords )
If Querywords( i ) <> "" and UCase( Querywords(i) ) <> "OR" and UCase( Querywords(i) ) <> "AND" Then
If uCase( Querywords( i-1 ) ) = "OR" Then
sql = sql & " OR [Summary] LIKE '%" & Querywords( i ) & "%'"
Else
sql = sql & " AND [Summary] LIKE '%" & Querywords( i ) & "%'"
End If
End If
Next
sql = sql & " )"
'
Set rs = Server.CreateObject("ADODB.Recordset")
rs.Open sql, conn, 3, 3
Response.Write "
你搜索的是: " & QueryString
Response.Write "
搜索的关键字: "
For i = LBound( Querywords ) to UBound( Querywords )
Response.Write "
" & strIndent & i & ": " & Querywords( i )
Next
' Print the SQL String
Response.Write "
sql 语句 : " & sql
' Print the Results
Response.Write "
结果 :
- "
On Error Resume Next
rs.MoveFirst
Do While Not rs.eof
Response.Write "
" & "" & rs.Fields("Title") & " - "
Response.Write rs.Fields("Description") & "
"
Response.Write " URL: " & rs.Fields("URL") & ""
Response.Write "
"
rs.MoveNext
Loop
Response.Write "
end if
%>