Technology Questions

Q:

How do you load data from XML file to a ORACLE table?

Answer

You need to first create a table in oracle that matches with the fields of the XML data.


So to get the XMl into the table, you can create a generic procedure that moves an XML document into a table by converting the elements to Oracle Canonical format.


Oracle Canonical format is as follows:


<ROWSET>


   <ROW>  


     <column_name_1 />


     .


     .


     </ROW>


     <ROW>


         <column_name_1 />


         .


         .


      </ROW> 


        .


        .


</ROWSET>        


ROW is used for the table names


ROWSET is used for the XML document


You can get the XML into the canonical form using XSL:


<?xml version="1.0"?>


<xsl:stylesheet 


             xmlns:xsl="https://www.w3.org/1999/XSL/Transform"                   


             version="1.0">


     <xsl:template match="/">


          <ROWSET>


               <ROW>


                         <Attribute_name>                      


                             <xsl:value-of select="Table_name/Attribute_name" />


                         </Attribute_name>


                < /ROW>


          </ROWSET>


     </xsl:template>


</xsl:stylesheet>


To transform the XML document into the canonical form, you can write a procedure. Make sure you include the line below in your procedure code:


v_rows := DBMS_XMLStore.insertXML(


                v_context,    


                XMLType.transform(p_xml_in, p_xsl_in));


The only remaining step is calling your procedure: 


DECLARE


   v_xml XMLType := XMLType( YOUR XML Document );


   v_xsl XMLType := XMLType( YOUR XSL Document );


BEGIN 


   procedure_name(v_xml, v_xsl, 'table_name');


END;

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Subject: Web Technology

0 1643
Q:

What is BDC programming?

Answer

Transferring of large/external/legacy data into SAP system using Batch Input programming. Batch input is a automatic procedure referred to as BDC(Batch Data Communications). The central component of the transfer is a queue file which receives the data vie a batch input programs and groups associated data into “sessions”.

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Subject: SAP

0 1639
Q:

What is the impact of declaring a method as final?

Answer

A method declared as final can't be overridden. A sub-class can't have the same method signature with a different implementation.

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Subject: Java

0 1639
Q:

Where are cookies actually stored on the hard disk?

Answer

The storage of cookies on the hard disk depends on OS and the browser. The Netscape navigator on Windows, the file cookies.txt contains all the cookies. The path is :


c:\Program Files\Netscape\Users\username\cookies.txt


 


The Internet Explorer stores the cookies on a file by name username@website.txt is


c:\Windows\Cookies\username@Website.txt

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Subject: Web Technology

0 1635
Q:

Explain VBScript in detail.

Answer

This is a scripting language developed by Microsoft and is based loosely on Visual Basic. Its functionality in a web environment is dependant upon either an ASP engine or the Windows Scripting Host, and must be used on a Windows hosting platform. 

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Subject: Web Technology

0 1634
Q:

What is hierarchy relationship in a dimension. whether it is: 1) 1:1 2) 1:m 3) m:m

Answer

1:m

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2 1633
Q:

How to create arrays in JavaScript?

Answer

Arrays are created by using new Array() in Java Script.


For example : var employees = new Array();


The elements to this array is assigned as follows :


employees[0] = "Kumar"


employees[1] = "Fedrick"

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Subject: Web Technology

0 1632
Q:

What is BCP ? When is it used ?

Answer

The Bulk Copy Program (BCP) is a command-line utility that ships with Microsoft SQL Server. It is a tool used to duplicate enormous quantity of information from tables and views. It does not facsimile the structures same as foundation to target.
BULK INSERT command helps to bring in a data folder into a record, table or view in a user-specific arrangement. With BCP, you can import and export large amounts of data in and out of SQL Server databases quickly and easily. Any DBA who has utilized this functionality will agree that BCP is an essential tool.

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3 1632