Toad is a editor for Oracle Database. Using Toad person can create , modify and alter the Database objects and we can create , modify and Drop the database using TOAd.
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Oracle Application Express is a Oracle Apex.
What is Oracle Application Express?
Oracle Application Express (Oracle APEX) is a declarative, rapid web application development tool for the Oracle database. It is a fully supported, no cost option available with all editions of the Oracle database. Using only a web browser, you can develop and deploy professional applications that are both fast and secure.
Whether you are an experienced SQL and PL/SQL developer or a power user used to writing reports, wizards allow you to quickly build Web applications on top of your Oracle database objects. Enhancing and maintaining these applications is done using a declarative framework, all of which increases your productivity.
Oracle Application Express is database-centric and suited to building a vast array of applications. You can start with webifying a spreadsheet to facilitate collaboration or dive right into extremely complex applications with numerous external interfaces such as the Oracle Store. Because Oracle APEX resides within the Oracle Database and can easily integrate with authentication schemes (such as Oracle Access Manager, SSO, LDAP, etc.) you can build secure applications that can scale to meet your largest user communities.
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what is the different between toad and application express
With XE database, application express is included by default, so free. Toad is not an Oracle product, with a separate installation (which requires Oracle Client), and you have to pay something for it...