Solved

Transformation of stored procedures to web services?

Posted on 2004-04-15
4
214 Views
Last Modified: 2010-04-07
Now: 1500 well structured stored procedures (T-SQL), each with an external interface consisting of X in parameters and Y result sets.

Tomorrow: 1500 web services based on current T-SQL code.

What is the easiest way to acomplish this transformation if you don't want to rewrite most of the code?

0
Comment
Question by:OrjanFranzen
4 Comments
 
LVL 1

Expert Comment

by:pcazella
ID: 10833633
Using ASP.net, you can define a dataset to return which, when called via SOAP, is an XML stream.
Create a .net page with a <web method> funciton and save it witha .asmx extention.  One of the nice features of using .net for the web services is you can auto-generate the WSDL just by typing "?WSD"L to the end of the url.
Example: HelloWorld.asmx?WSDL

Also note that you can group your stored procedures in "Classes" or collections all on one .asmx

http://www.asp.net/Tutorials/quickstart.aspx

<%@ WebService Language="VB" Class="spCollection" %>
Imports System
Imports System.Web.Services

Public Class HelloWorld :Inherits WebService

     <WebMethod()> Public Function sp_TSQL1(Param1) As Dataset
          'SQL Select statments to return a recordset
          return(DS)
     End Function

   <WebMethod()> Public Function Add(a As Integer, b As Integer) As Integer
       Return(a + b)
   End Function

End Class


Consuming an XML stream in an interface layer is a different topic, here I'm only talking about creating the web service.  I like to use Flash as a GUI, so web services are everything to me.
0
 
LVL 53

Accepted Solution

by:
COBOLdinosaur earned 125 total points
ID: 10969418
OrjanFranzen,

Has your question been answered.  Please either accept a comment as the answer, or post a comment to to indicate what additional information is required.

COBOLdinosaur
Page Editor, Web Development Software
0
 

Expert Comment

by:raylewallen
ID: 11221742
I'm curious as to why you would take 1500 well structured sps and convert them into something less efficient?  Your not going to take the sql code and move it to something inline in VB are you?  If that is the case, your solution is to not do it all.  Perhaps I am misunderstanding your intentions though.
0
 

Author Comment

by:OrjanFranzen
ID: 11233947
Agree, that it might sound stupid.

The intention is to use an existing C/S application with sps. The application is logically structured as a 3-tier with a thin client, external sps and internal sps. The external sps that handles business logic has a "client" interface with parameters, result sets and error passing. The internal sps handles database access and are called from the external sps.

It would by nice if we could build a webb interface upon the existing external sps.

If it's possible to call these sps from webb services we could keep the code "as is" and also gain performance. Maybe the problem is how to call sps from a webb service???


0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When deciding to adopt any help desk solutions many factors should be explored before taking decisions. This will change from business to another but in general there are some kind of rule of thumb. Here are some quick tips: Do we need only ticket…
Now that Expression Web 4.0 (http://www.microsoft.com/expression/products/Upgrade.aspx) is free if you buy or have the full version of Expression Web 3.0, now is the best time to  migrate from FrontPage to Expression Web (http://www.frontpage-to-exp…
The purpose of this video is to demonstrate how to manually back up a WordPress Database. This will be demonstrated using a Windows 8 PC. The Host used will be IPage.com Log into your Hosting account. IPage will be used for demonstration : Locat…
The purpose of this video is to demonstrate how to set up the permalinks on a WordPress Website. This will be demonstrated using a Windows 8 PC. Go to your WordPress login page. This will look like the following: mywebsite.com/wp-login.php : Go t…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question