Oracle web applications : PL/SQL developer's introduction by Andrew Odewahn
By Andrew Odewahn
This compact advisor offers the jump-start Oracle builders want to make the transition from conventional programming to the advance of important net purposes for Oracle8i. Even readers who begin figuring out not anything approximately HTML, PL/SQL, or Oracle's different instruments will how one can create easy internet purposes in a question of days. The e-book specializes in Oracle8i, but additionally covers net improvement for prior Oracle models (Oracle8 and Oracle7).Background:The explosion within the use of the web and the internet has ended in an entire new manner of doing company. builders who simply the day past have been utilizing COBOL to put in writing debts payable platforms are actually being requested to create a wide diversity of recent Internet-based functions starting from digital trade (e-commerce) websites to inner info warehouses to company source making plans (ERP) structures. regrettably, the filesystem architectures of so much net structures will not be as much as the duty. the hot breed of net purposes -- that are speedy changing into severe assets that businesses have to live on -- call for a platform that offers production-quality instruments for content material administration, program improvement, and software integration. And present internet recommendations are insufficient in lots of ways.Oracle8i, Oracle's "Internet database," provides net builders how to construct internet know-how on best of a relational database, instead of on a conventional filesystem. With Oracle8i, businesses can observe good understood, trustworthy, production-quality database methodologies to web pages administration. Oracle8i additionally helps a large choice of program improvement systems and instruments which are tightly built-in to the middle database. eventually, Oracle8i helps applied sciences that support businesses tie their Web-based purposes into legacy applications.There is lots to benefit in Oracle8i. not just does it improve easy database beneficial properties, it introduces Java and quite a few net improvement instruments. Oracle8i offers a soup-to-nuts platform for website and internet program improvement that extends conventional database strategies to web pages. It replaces the conventional filesystem utilized by so much net servers with a database administration system.Many clients are intimidated by way of the significant array of latest applied sciences in Oracle8i. And but, they're stressed to take advantage of those applied sciences to construct advanced internet purposes at once. This ebook supplies such clients how to commence utilizing Oracle8i instantly to create invaluable net purposes. it's a concise, easy-to-read advisor to the fundamental applied sciences builders have to comprehend so one can construct internet applications.Contains:The booklet describes the subsequent net improvement tools:
- PL/SQL-- a established programming language that mixes procedural constructs and traditional SQL. It deals such good points as cursors, loops, conditional and sequential keep watch over statements, exception handlers, documents, tables, and constructs for constructing modular code (functions, tactics, and packages).
- PL/SQL Toolkit -- a suite of PL/SQL programs provided by way of Oracle to be used in constructing net applications.
- HTML -- an ASCII-based markup language used to create net pages.
- WebDB -- A software program method for development, tracking, and growing content-driven sites; it permits clients to exploit an online browser to entry and shop details in the Oracle8i database.
- Oracle program Server (OAS) -- an extensible internet server that makes use of plug-in courses known as cartridges to permit database-integrated internet platforms to be constructed in numerous languages (e.g., PL/SQL, Java, Perl).
- XML -- An rising regular for developing self-describing records. it's just like HTML yet permits you to create your personal markup tags. XML is predicted to be a key expertise in digital trade systems.
- The ebook additionally provides numerous absolutely learned pattern internet functions that would train you the way to construct such purposes of your own.
NOTE: even if this booklet touches at the Java gains of Oracle8i, it does not hide Java improvement consistent with se. Switching to Java represents a massive swap for many Oracle builders. This publication presents an evolutionary course for readers who are looking to do helpful Oracle8i internet improvement now, utilizing more often than not everyday instruments. extra books will offer Java education if you happen to have mastered those internet instruments and wish to take the subsequent step.
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Extra resources for Oracle web applications : PL/SQL developer's introduction
All rights reserved. 2 Interacting with Script Files DESCRIBE employees SELECT first_name, last_name, job_id FROM employees; 3 1-33 1 2 Copyright © Oracle Corporation, 2001. All rights reserved. Summary In this lesson, you should have learned how to: • Write a SELECT statement that: • – Returns all rows and columns from a table – Returns specified columns from a table – Uses column aliases to give descriptive column headings Use the iSQL*Plus environment to write, save, and execute SQL statements and iSQL*Plus commands.
All rights reserved. Overview of iSQL*Plus After you log into iSQL*Plus, you can: 1-26 • • • • Describe the table structure • • Execute statements stored in saved files Edit your SQL statement Execute SQL from iSQL*Plus Save SQL statements to files and append SQL statements to files Load commands from a text file into the iSQL*Plus Edit window Copyright © Oracle Corporation, 2001. All rights reserved. Logging In to iSQL*Plus From your Windows browser environment: 1-27 Copyright © Oracle Corporation, 2001.
All rights reserved. Concatenation Operator A concatenation operator: 1-18 • Concatenates columns or character strings to other columns • • Is represented by two vertical bars (||) Creates a resultant column that is a character expression Copyright © Oracle Corporation, 2001. All rights reserved. Using the Concatenation Operator SELECT FROM last_name||job_id AS "Employees" employees; … 1-19 Copyright © Oracle Corporation, 2001. All rights reserved. Literal Character Strings 1-20 • A literal is a character, a number, or a date included in the SELECT list.