What is XML capable of in the recent versions of SQL Server?
Jacob Sebastian gives a succinct answer in this extract from his new book.
(Oracle Home = 'C:\ORACLE\middleware_12.1.3') Is the local system ready for patching? (You could also use the xquery directly on the validate action).
Here is an example XQuery to generate the required Dynamic Validate XML structure: xquery version "1.0" encoding "utf-8"; (:: Oracle Annotation Version "1.0" ::) (:: pragma parameter=”$i_operation” type=”xs:string” ::) declare function local:dyn Validate($i_operation as xs:string) as element() ; declare variable $i_operation as xs:string external; local:dyn Validate($i_operation) After we have the $dyn Validate variable we can use it as input for the Validate action.
To summarize, we need an XML schema when we need to make sure that the XML document that we need to work with is in the expected format.
As mentioned above, XMLTYPE can be used for the declaration of variables, parameters and function return values in PL/SQL.
An XML Schema is a document which describes another XML document. An XML schema itself is an XML document which contains the rules to be validated against a given XML instance document.
When we write a piece of code (a class, a function, a stored procedure, etc.) which accepts data in XML format, we need to make sure that the data that we receive follows a certain XML structure and should contain values which are coherent. Assume that you are writing a function/method for an application that manages employee data.
..\p20380158_121300_Generic380158>opatch apply Oracle Interim Patch Installer version 126.96.36.199.0 Copyright (c) 2014, Oracle Corporation. Oracle Home : C:\ORACLE\middleware_12.1.3 Central Inventory : C:\Program Files\Oracle\Inventory from : n/a OPatch version : 188.8.131.52.0 OUI version : 184.108.40.206.0 OPatch detects the Middleware Home as " C:\ORACLE\middleware_12.1.3" jul 09, 2015 PM oracle.oiii. The XML structure example shown by Oracle also requires an name Space URI element.
Oiii Install Area Control init Area Control INFO: Install area Control created with access level 0 Applying interim patch '20380158' to OH 'C:\ORACLE\middleware_12.1.3' Verifying environment and performing prerequisite checks... Please shutdown Oracle instances running out of this ORACLE_HOME on the local system. Which means the correct XML input for dyanamic validation for an XSD is: Here is an example of my SB project: I first use an Assign action in my pipeline to create the $dyn Validate variable with XQuery which holds the XML structure for the validation.