Oracle APEX – make a field conditionally required

As you have probably found, you cannot just set the dependent item’s Required attribute, as this makes it required even when hidden. Instead you can create a Validation of type “Item is NOT NULL” on the dependent item, but with a server-side condition based on the value of the other item. For example, suppose the […]

Oracle DBA Vs Oracle Developer

Oracle DBA Vs Oracle Developer Feature Oracle DBA Oracle Developer Key Roles Managing Databases Development(Coding) Type of Tasks Streamlined Wide Range Work Environment Database maintenance Database development Area of work Backend database management Front-end development Few other tasks Backup, recovery, server connectivity, etc Coding, designing UI, etc

Oracle Database Startup and Shutdown

Startup Procedure Nomount State: This is the state when the control file, online redo log files, and the database files are closed and are not accessible. The Oracle instance is available. Some of the v$ views (dynamic performance views) are available during this state. A database may be brought to this state to perform operations. […]