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Oracle Interview Questions And Answers
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Library's provide a convenient means of storing client-side program units and sharing them among multipule applications. Once you create a library, you can attach it to any other form,menu,or library modules. When you can call library program units from triggers menu items commands and user named routine, you write in the modules to which you have attach the library. when a library attaches another library ,program units in the first library can reference program units in the attached library. Library support dynamic loading-that is library program units are loaded into an application only when needed. This can significantly reduce the run-time memory requirements of an applications. 111. What is strip sources generate options? Removes the source code from the library file and generates a library files that contains only pcode.The resulting file can be used for final deployment, but can not be subsequently edited in the designer. ex. f45gen module=old_lib.pll userid=scott/tiger strip_source YES output_file 112.What are the vbx controls? Vbx control provide a simple mehtod of buildig and enhancing user interfaces.The controls can use to obtain user inputs and display program outputs.vbx control where originally develop as extensions for the ms visual basic environments and include such items as sliders,grides and knobs. 113. What is a timer? Timer is a "internal time clock" that you can programmatically create to perform an action each time the timer expires. 114. What are built-ins associated with timers? find_timer create_timer delete_timer 115. what are difference between post database commit and post-form commit? Post-form commit fires once during the post and commit transactions process, after the database commit occures. The post- form-commit trigger fires after inserts,updates and deletes have been posted to the database but before the transactions have been finalished in the issuing the command.The post-database-commit trigger fires after oracle forms issues the commit to finalished transactions. 116. What is a difference between pre-select and pre-query? |