Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By : Yuli Vasiliev
Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By: Yuli Vasiliev

Overview of this book

Oracle Database gets high marks for performance, reliability, and scalability. Building and deploying your PHP applications on Oracle Database enables you to combine the power and robustness of Oracle and the ease of use, short development time, and high performance of PHP. When used in a complementary way, PHP and Oracle allow you to build high-performance, scalable, and reliable data-driven Web applications with a minimum of effort.When building a PHP/Oracle application, you have two general options. The first is to use an Oracle database just to store data, performing all the operations on that data on the client side; the other is to use the database not only to store data, but also to process it, thus moving data processing to the data. While building the key business logic of a database-driven PHP application inside the database is always a good idea, you should bear in mind that not all of the databases available today allow you to do. The Oracle database, which offers record-breaking performance, scalability, and reliability, does. The partnership of Oracle and the open-source scripting language PHP is an excellent solution for building high-performance, scalable, and reliable data-driven web applications.This 100% practical book is crammed full of easy-to-follow examples. It provides all the tools a PHP/Oracle developer needs to take advantage of the winning combination. It addresses the needs of a wide spectrum of PHP/Oracle developers, placing the emphasis on the most up-to-date topics, such as new PHP and Oracle Database features, stored procedure programming, handling transactions, security, caching, web services, and Ajax.
Table of Contents (16 chapters)
PHP Oracle Web Development
Credits
About the Author
About the Reviewer
Preface

Parsing and Executing SQL Statements with OCI8


Whether you are dealing with a query operation, selecting data from a database, or performing a DML operation, modifying database data, both parsing (preparing for execution) and executing are required when it comes to processing an SQL statement with OCI8. Besides these required steps, there may be a few optional steps, such as binding PHP variables to Oracle placeholders that you can perform after you have parsed the statement, but have not yet executed it.

Preparing SQL Statements for Execution

Once a connection to the database is established and the query string is defined, you can go ahead and prepare the statement for execution using the oci_parse function, passing to this function the database connection and the SQL statement string as the arguments.

As you saw in the sqlproc.php script discussed earlier in this chapter, oci_parse returns the statement identifier that can be then passed to oci_bind_by_name, oci_define_by_name, oci_set_prefetch...