Recently I needed to find out how many rows in a table had a certain status and display a grand total of the number of objects. In this post, rather than create a demo table with the various status I am going to base my example on the user_objects data dictionary view. Using the following […]
The inspiration for this post came after recently overhearing a developer asking why his query was not returning a row. It had been working fine, the only change was instead of ROWNUM = 1, he had changed it to ROWNUM = 2. The query was could have been doing something similar to the following: which […]
In this article I will describe a method which enables you to list the contents of a Linux directory from within Oracle using the 11gR2 Preprocessor feature of Oracle External Tables. The example that follows was built using the Oracle Developer Days Environment and used the following versions: Oracle Linux running via Oracle Virtual Box […]
This article demonstrates a method used to sort an Oracle nested table collection from within PL/SQL . The example that follows was built using the Oracle Developer Days Environment and used the following versions: Oracle Linux running via Oracle Virtual Box Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 Oracle SQL Developer 3.2.20.10 The user developing […]
I have in the past struggled with the myriad of formatting options available with dbms_xplan.display_cursor so I was pleased to learn about a quick and easy to remember way of formatting the results at this years UKOUG conference. First execute the SQL statement of interest including the gather_plan_statistics hint: Then run dbms_xplan.display_cursor: The key point is […]
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