Erwin Vrielink
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Posts by Erwin Vrielink
How to use an outerjoin to synchronise data
0There is often a need to synchronize data from a query. For example reading external data and update the tables. Sometimes it can be achieved by a single merge statement, but this is not always possible. Mind, for example, the need to update more than one table, or updating the data using an api. As an example we want to grant and revoke privileges on database objects. Tables needing select, insert, update and delete privileges, packages execute and views select privileges. The table and packages also get the grant option for the select and execute privilege. (more…)
Logging in JDeveloper 11g / WebLogic Server
When developing an application it makes sense to add logging to this application. The Apache Commons Logging is a way to implement logging to your application independent of the eventually used implementation. While adding log messages to a Fusion Web Application (ADF) and running this application with JDeveloper the logging is not displayed in the application log window. This is not what expected en certainly undesirable. (more…)
Hierarchical ADFTree with JDeveloper 11g
There are different manners to display hierarchical data. One of the most intuitive ways is using a tree structure like a file browser. This enables the ability of simple navigation without losing the context. The brand new JDeveloper 11g offers a very impressive set of Rich Internet Components. One of these components is the ADFTree component, for presenting this kind of information. (more…)
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