By Rick Greenwald
Oracle program exhibit is an easy-to-use program improvement surroundings equipped at the Oracle expertise stack. There are elements of that prior sentence that you could be locate jarring—that Oracle, a firm well known for its database know-how, has an software improvement atmosphere, and that Oracle, an organization regarded as providing high-end, enterprise-ready know-how, has whatever that's effortless to use.But, as this ebook will express, the introductory assertion is totally actual. Oracle software exhibit, generally called Oracle APEX or just APEX, does enjoy the fashioned enterprise-class robustness that's the hallmark of Oracle know-how. The purposes you construct should be capable of aid 1000's of clients and lots of terabytes of information, scalability some distance past even the mind's eye of such a lot different improvement environments.And Oracle APEX, with its declarative, wizard-driven method, is actually effortless to exploit. during the few hundred pages of this booklet, you won't purely find out about the best way to use APEX, you'll create a usable order access method. the quick studying curve awarded in those pages is a final result of decades of improvement and refinement of the APEX product, which all started lifestyles virtually a decade in the past inside of Oracle.By the top of this quantity, you are going to recognize adequate to create your personal purposes, in addition to having the data and knowing of Oracle APEX and the realm of Oracle expertise to discover extra refinements in your own.Best of all, you should use APEX with completely no cost—either in a hosted setting, as recommended in bankruptcy 1, or with a unfastened model of the Oracle database.Welcome to the realm of Oracle program Express!This publication is geared toward a selected crew of users—those who're now not acquainted with Oracle software show. The publication assumes that you've got a uncomplicated wisdom of program improvement, the kind you may get from being silly with a private database similar to entry. actually, this publication used to be written with an entry developer in mind—an entry developer trying to step as much as a extra scalable and trustworthy surroundings, with diminished upkeep overhead and larger integration among software systems.This booklet covers using Oracle software show. even supposing the publication relies at the 3.5 model, you should use the publication with older types to boot. notwithstanding, because the e-book will use a hosted model of Oracle program convey, and because either the Oracle database that help the product and the product itself can be found as unfastened downloads from http://otn.oracle.com, you have to be in a position to use the most recent model easily.This publication is based to offer the reader a steady creation to the necessities of improvement with Oracle software exhibit. The booklet includes the following:Welcome to Oracle!—This includes an outline of Oracle program exhibit, in addition to directions on find out how to manage a hosted improvement surroundings for appearing the routines utilized in the book.Jumpstart Oracle program Express—You will jump into developing purposes with Oracle program exhibit and end an easy program through the top of this.Extending Your Oracle APEX Application—This will introduce you to the choices in Oracle APEX that allow you to make sure that your clients will input right information whereas utilizing your application.Validation, Calculation, Navigation, and Lists—This maintains the exploration of the facets of APEX that assist you to make sure that information utilized in your software is true. also, this covers easy navigation strategies to your application.Reporting and Charting—This covers the robust and versatile reviews you could create with Oracle APEX, and introduces you to the graphical features of APEX reporting.Components operating Together—This extends your paintings with charts, displaying how one can create charts that hyperlink to a extra distinct view of the information they signify. additionally, you will methods to create a calendar web page with hyperlinks to the knowledge proven as a part of the calendar, and the way so as to add photographs taken from the underlying database to an Oracle APEX report.Customizing consumer Interfaces—This explores complicated concepts for customizing person interfaces, on person pages in addition to throughout all of your APEX application.PL/SQL—This introduces you to PL/SQL, the underlying language used to enforce your APEX program, and demonstrates tips to use the ability of PL/SQL to increase the common sense on your application.Security—This covers how defense is carried out in your APEX environment.Deployment and Administration—This covers the choices you have got for deploying an APEX program to a different surroundings and walks you thru a type of ideas. also, this introduces you to the executive performance you should use to observe and deal with your APEX applications.Packaged Applications—This offers an outline of packaged purposes on hand for Oracle software show, with a extra targeted examine a choose few.Migration—This describes how you can migrate purposes from Microsoft entry to Oracle program show.
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Additional resources for Beginning Oracle Application Express (Wrox Programmer to Programmer)
Creating the data structure for this application will require the creation of four tables to implement the four functional data groupings listed above. Figure 2-1 shows the four tables, as well as the relationships between them. You can see the four tables, as expected, as well as lines connecting those tables. The lines indicate relationships between the tables. The tables connected by straight lines — Orders and Customers, Order Items and Products — have what is called a one-to-one relationship, with each row in a table being connected to a single row in the other table.
With these few steps, you have both created a table and loaded data into your Oracle database. How It Works You can now go and take a quick look at your data through the standard APEX data-browsing tools. 1. Start by clicking on the SQL Workshop tab in the set of tabs in the upper-right area of the page, which will bring up the page shown in Figure 2-8. indd 24 11/9/08 4:21:36 PM Chapter 2: Jumpstart Oracle Application Express 2. As with your initial step above, click on the down arrow in the Object Browser icon, and then select Browse and Tables from the cascading menus.
5. Give the new table the name of ORDER_ITEMS, accept all the defaults, and click Next. 6. Accept the default of New Primary Key column for the Primary Key From: option, but change the name of the primary key to ORDER_ITEMS_ID, then click Load Data. Once again, the ORDER_ITEMS table will require a primary key, like all tables in an Oracle database. But you will have to add another constraint to this table to establish the relationship between ORDER_ITEMS and the ORDERS table. 7. Return to the SQL Workshop page.