See "Establishing User Identity Through Authentication".įor Authentication Scheme, select one of the following:Īpplication Express - Uses the user account credentials created and maintained with the Application Express Service Administration application. Authentication is the process of establishing a user's identity before they can access an application. Next, select a default authentication scheme. Select Components to Import - Select the components to import. To include shared components, select the following:Ĭopy Shared Components from Another Application - Select Yes.Ĭopy from Application - Select the application from which you want to import shared components. Shared components are common elements that can display or be applied on any page within an application. On Tabs, specify a tab implementation and click Next.įor Shared Components, determine whether to import shared components from another application. The new page appears at the top of the page. Select the operations to be performed on the table (for example, Update, Insert and Delete). Next, select a page type and table on which to build the tabular form. Schema - Your application will obtain its privileges by parsing all SQL as a specific database schema. Note that you will still have to define all other application attributes, or you can choose to copy some attributes by choosing to copy shared components from another application (See step 11). Select Based on existing application design model to copy page definitions from a previous application model. Select From scratch to manually add all pages Name - Enter a name to identify the application.Īpplication - Enter a unique integer value to identify the application.Ĭreate Application - Select a creation method: On the Workspace home page, click the Application Builder icon.įor Name, enter the following and click Next: To create a tabular form using the Create Application Wizard: For that reason, this wizard uses general best practices to generate the application and does not include several advanced options included in the Create Page Wizard. The Create Application Wizard is designed to quickly create a basic Oracle Application Express application consisting of multiple pages and components. Note that validations are not created for columns if the column is set to read-only, either based on the user's selection, or defined user interface defaults.Ĭreating a Tabular Form Using the Create Application Wizard Validations are created for columns that are set to NOT NULL in the underlying table and columns of type NUMBER, DATE or TIMESTAMP. Wizard generated tabular forms also automatically create validations for some columns. The new checksums are compared to those built when the tabular form was first rendered, and if there are any mismatches, the update is rejected, because the data in the database was either modified by another user or anther process in the time between the tabular form was rendered and the time the data was submitted. Upon submission of the form for update, an additional set of checksums is computed on the then current data stored in the database. This checksum is stored in an extra hidden tabular form column. Using a method called optimistic locking, a checksum is computed for each row when rendering a tabular form. Wizard generated tabular forms built-in DML, include a checksum column to prevent lost updates. Users can check one or more rows on the current page and when they press the Delete button, the row numbers are used to identify the corresponding primary key value(s) and the matching rows are deleted. Delete operations are performed by referencing row number of the row to be deleted. For new records, the primary key values must be NULL in order to be identified as new records. The primary key columns must be part of the tabular form SQL query, and the report columns must be either hidden or display-only (save state) in order for the DML processes to be able to identify the correct records. MRU and MRD processes reference the underlying table name and the primary key columns. Multi Row Delete (MRD) process deletes requests on one or more rows When a tabular form page is submitted, the tabular form data is processed using built-in data manipulation language (DML), or a custom PL/SQL page processes.Ī tabular form with automatic DML has two processes for multi-row operations:Ī Multi Row Update (MRU) process performs create and update operations Unlike a single record from, tabular forms do not store data in session state. Tabular forms are based on a SQL query in which the query columns are tied to the underlying table columns.
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