How to use the nextrecordset to write out multiple recordsets in one call to the database. Very Hand

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September 01, 1999

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Using the NEXTRECORDSET method to write out multiple SELECT statements from one connection.

A formatted string gets passed to the database via a Recordset object.
(below is this examples formatted string.)

Sql Statement that is passed to the database

DECLARE @Id_Req INT exec sp_EmpInfo 'John ','Smith', '123 main Street', 'Hollywood', @Id_Req OUTPUT SELECT * FROM AllData WHERE RecordId = @Id_Req SELECT AllData.fname, AllData.lname FROM Alldata WHERE RecordId = @Id_Req SELECT AllData.fname FROM AllData WHERE RecordId = @Id_Req SELECT AllData.lname FROM AllData WHERE RecordId = @Id_Req SELECT AllData.Address FROM AllData WHERE RecordId = @Id_Req SELECT AllData.city FROM AllData WHERE RecordId = @Id_Req

Output of the multiple recordsets formatted on an ASP Page.

RecordID	fname	lname	address	city
Contents of recordset #1
58	John	Smith	123 main Street	Hollywood

fname	lname
Contents of recordset #2
John	Smith

fname
Contents of recordset #3
John

lname
Contents of recordset #4
Smith

Address
Contents of recordset #5
123 main Street

city
Contents of recordset #6
Hollywood

4. Code of the asp page.

<%
dim conn
dim strconn
dim rs
dim strsql
dim strsql2
dim strsql3
dim strsql4
dim strsql5
dim strsql6
dim strsql7
dim strsql8

'strconn = Driver={SQL Server};Description=example;SERVER=222.222.1.2;UID=webexample;

PWD=;DATABASE=webexample"

'Format Declare & EXEC statements that will be passed
'to the database with the output parameters
strsql = "DECLARE " & CHR(10) & "@Id_Req " & "INT" & CHR(10)
strsql2 ="exec " & "sp_EmpInfo" & " '" & request("txtFirstName") & "'," & "'" & request("txtLastName") & "', " & "'" & request("txtaddress") & "', " & "'" & request("txtcity") & "', "& "@Id_Req " & "OUTPUT" & chr(10)

'Formats one or more sql statements that will be passed to the
'database In this examples I use six different ways.
strsql3 ="SELECT * FROM AllData WHERE RecordId = @Id_Req"
& Chr(10)
strsql4 ="SELECT AllData.fname, AllData.lname FROM Alldata WHERE
RecordId = @Id_Req" & Chr(10)
strsql5 ="SELECT AllData.fname FROM AllData WHERE RecordId =
@Id_Req" & Chr(10)
strsql6 ="SELECT AllData.lname FROM AllData WHERE RecordId =
@Id_Req" & Chr(10)
strsql7 ="SELECT AllData.Address FROM AllData WHERE RecordId =
@Id_Req" & Chr(10)
strsql8 ="SELECT AllData.city FROM AllData WHERE RecordId =
@Id_Req" & Chr(10)

'Puts together all of the local variables into one variable
'That will be used by the recordset object
strsql = strsql & strsql2 & strsql3 & strsql4 & strsql5 & strsql6 &
strsql7 & strsql8

'This is optional this writes out the strsql local variable
'that will be passed to the database
response.write "<b>" & "Sql Statement that is passed to the
database" & "</b>" & "<br>"
response.write strsql & "<br>" & "<br>"

'sets a connection & recordset objects and executes the strsql
local variable
set conn = server.createobject("adodb.connection")
conn.open strconn
set rs = server.createobject("adodb.recordset")
rs.open strsql, conn

'Parses out the individual recordsets and places them
'into individual table rows
intcount = 1
Do Until rs Is Nothing
response.write "<table border='1' width='25%'>"

    response.write "<b> Contents of recordset #" & intCount &
"</b><br>"
'Parses out the individual recordsets and places them into table rows
    Do While Not rs.EOF
        response.write "<TR>"
        For Each oField In RS.Fields
    response.write "<TH>" & oField.Name & "</TH>"
    Next
        Response.write "</TR>" & "<TR>"
        For Each oField In RS.Fields
response.write "<TD ALIGN=center>"
If IsNull(oField) Then
Response.Write " "
Else
Response.Write oField.Value
End If
response.write "</TD>"
        Next
        rs.MoveNext
    Loop
'Uses the NEXTRECORDSET Method
    Set rs = rs.NextRecordset
    intCount = intCount + 1
response.write "</table>"
Loop
%>