Performing DML Operations on XML Schema Based XMLType Views | |
Performing DML Operations on XML Schema Based XMLType Views Analyzing the underlying query of the empSch v view discussed in the preceding section you may note that each attribute of the EMP T object used in the select list maps to a certain column of a single table namely emps What this means in pr
|
|
Using XMLType for Handling XML Data in the Database | |
Using XMLType for Handling XML Data in the Database Being an object type XMLType can not only be used to store XML data in the database but also to operate on that data via its built in methods Regardless of the storage model you choose XMLType provides a set of XML specific methods to operate on XM
|
|
Using Oracle Database for Storing, Modifying, and Retrieving XML Data | |
Using Oracle Database for Storing Modifying and Retrieving XML Data With Oracle XML DB you have various XML storage and XML processing options allowing you to achieve the required level of performance and scalability One of the most interesting things about Oracle XML DB is that it allows you to per
|
|
Performing XSLT Transformations inside the Database | |
Performing XSLT Transformations inside the Database Now that you have the employees XSL stylesheet stored in the database and the xmlusr schema is permitted to access the hr employees table you can create a script that will instruct the database to build an HTML page based on the data stored in hr e
|
|
Moving All the XML Processing into the Database | |
Moving All the XML Processing into the Database In the preceding example the database server performs only a part of the XML processing while the rest is still performed by the PHP engine Specifically the database server generates an employees XML document based on the records from the hr employees
|
|
Performing XML Processing inside the Database | |
Performing XML Processing inside the Database When building XML enabled applications on top of Oracle there are many advantages to performing the XML processing inside the database when compared to performing it on the client The key advantages to perform XML processing inside the database are as fo
|
|
N-Tier Architecture: Data Access Layer | |
N Tier Architecture Data Access Layer In an N Tier architecture the data access layer consists of components that aid one in the process of accessing the database When it is used correctly the data access layer serves as an abstract level for the structures of the database Simple changes that are ma
|
|
N-Tier Architecture: The Business Rules Layer | |
N Tier Architecture The Business Rules Layer Business Rules Layer in N Tier Architectures The Business Rules Layer in an N Tier architecture is that layer that contains the Business logic and or Business rules of the application Reserving a separate layer strictly for Business logic in an N Tier arc
|
|
N-Tier Architecture Presentation Logic Layer | |
N Tier Architecture Presentation Logic Layer Composition of the Presentation Layer The Presentation Layer in an N Tier structure is commonly referred to as the client” layer It consists of parts that are used to present data to an end user Examples of components on the Presentation Layer
|
|
SOA and Business Architecture | |
SOA and Business Architecture Businesses are now having to think a lot more seriously about how to best assemble their systems out of common parts Service Oriented Architecture has caused this change in the way such systems are thought of It requires a lot more planning and investment at the outset
|
|
|
