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. Contents of recordset #1
| | RecordID | fname | lname | address | city |
|---|
| 58 | John | Smith | 123 main Street | Hollywood |
Contents of recordset #2
| | fname | lname |
|---|
| John | Smith |
Contents of recordset #3
| | fname |
|---|
| John |
Contents of recordset #4
| | lname |
|---|
| Smith |
Contents of recordset #5
| | Address |
|---|
| 123 main Street |
Contents of recordset #6
| | city |
|---|
| 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
%> |
|
|
| DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware. |
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