Showing posts with label Generate XML. Show all posts
Showing posts with label Generate XML. Show all posts

May 3, 2013

SQLYoga – XML Result sets with SQL Server

Recently, found that people making much complex code to have an XML in application. I have found that they return result set in Table to the application and have applied code to convert that data table to XML by Asp. Net application. When I review the process, I have suggested that why don’t you use the XML feature of the application. They surprised the simple use of it and make their life easy. Let me have sample query to generate XML result sets in SQL Server database.

There are two ways to have an XML from query:
1. FOR XML RAW
2. FOR XML PATH

Please find following sample queries where both of the way are being used:

Lets create sample data

DECLARE @SQLYoga TABLE(
    ID INT IDENTITY,
    Data VARCHAR(50),
    CreatedDate DATETIME DEFAULT(GETDATE()),
    CreatedBy INT
    )
INSERT INTO @SQLYoga(Data)
SELECT 'SQLYoga'
UNION ALL
SELECT 'Tejas Shah'
UNION ALL
SELECT 'Generate XML'

Generate XML with XML ROW

SELECT *
FROM @SQLYoga
FOR XML RAW, ROOT('Records')

SQLYoga Resultset of XML RAW

XML RAW, returns the XML by each record with row element and all columns as attributes in the XML.

Generate XML with XML PATH

SELECT    *
FROM    @SQLYoga
FOR XML PATH('Record'), ROOT('Records')

SQLYoga Resultset of XML PATH

XML PATH, returns the XML by each record with separate element and also columns as element within respected element of the record.

That’s it. It is much simple and you can get rid of the complex coding in application. Let me know your comments or issues you are facing while working on this.

Reference: Tejas Shah (www.SQLYoga.com)