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Oracle Application Express

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UI Defaults UI (user interface) Defaults in Application Express enable you to assign default user interface properties to a table, column, or view within a specified schema.
These UI properties are used for screen elements such as field labels, format masks, column headers and column alignment.
When you create a form or report using a wizard, the wizard uses this information to create default values for region and item properties.
URL The URL that displays for each page indicates the location of Oracle Application Express and identifies the address of Oracle Application Express, the application ID, page ID, and session ID.
URL Tampering Web based applications, including those developed in Oracle Application Express often pass values from one page to another through a URL.
A user may observe this and override a value by typing their own value in the location field of his browser. Obscuring the value passed in the URL through a form of encoding or encryption is not sufficient.
Appropriate authorization rules should be applied to the logic on the page and, even better, at the database level to prevent unauthorized users from viewing this data.
Unified Modeling Language (UML) A language for specifying, visualizing, constructing, and documenting the artifacts of software systems, as well as for business modeling and other non-software systems.
The UML represents a collection of best engineering practices that have proven successful in the modeling of large and complex systems.
Usage Monitor The APEX Usage Monitor is on the Database Home Page. Monitor the storage space available, memory allocation, the current number of database sessions, and users, and database log archive status.

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