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Old July 7th, 2005, 02:11 PM
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Default mulitiple field query PLUS

I want to query an Access database through ASP. I want the query to return records based on parameters entered by the user, unless no parameter for a particular field is entered, in which case it would return all records where that field exists.

Example (and I hope this is clear):

The database is a list of documents of county records, containing a document name, a county name, a document summary, etc. I want the user to be able to look up records either by county, or document name, or both. So the query form will request the user to enter a parameter in the appropriate field. If they enter no parameter, the query is to assume all records containing any value for that field are being requested.

Some one suggested the statement below, but I get an
"Invalid use of vertical bars in expression" error.

Anyone know the correct Access syntax?

select * from records
where dName like '%' || nvl('&dName','') || '%'
and county like '%' || nvl('&county','') || '%';

Thanks for your help,

Durwood

 
Old July 14th, 2005, 01:50 AM
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Default

Try this.


cn = Your Connection String

dName = request("dName")
County = request("County")

set rs = server.createobject("adodb.recordset")
sql = "select * from records"
if dName <> "" OR County <> "" then
    sql = sql & " where"
    if dName <> "" then
        sql = sql & " dName like '*" & dName & "*'"
    end if
    if dName <> "" AND County <> "" then
        sql = sql & " and"
    end if
    if County <> "" then
        sql = sql & " County like '*" & County & "*'"
    end if
end if
'response.write sql & "<br>"
rs.open sql, cn
if not rs.eof then
    do while not rs.eof
    response.write rs("dName")
    rs.movenext
    loop
end if
rs.close
set rs = nothing
 
Old July 14th, 2005, 10:54 AM
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Default

Quote:
quote:Originally posted by DaveGerard
 Try this.


Thanks 1024K. This looks very promising.

I was looking for a particular syntax for an Access SQL query that would accomplish the same as the "IF THEN" statements, but perhaps this is the only way to do it with Access?







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