I can’t remember using the PL/SQL construct where current of in code I have written so along with my usual article style of how use to use this feature, this is also an experiment to find out if there are any other reasons to use where current of. The code examples in this post have …
Since dbms_utility.format_error_backtrace has been available from Oracle 10g this isn’t another what it ishow to use it post. Instead I will be taking this opportunity to discuss a nuance of dbms_utility.format_error_backtrace that you may not be aware of. dbms_utility.format_error_backtrace reports the call stack back to the exception or the last raise statement which if you …
One of the popular exercises when learning a new language is to develop a FizzBuzz program. This is where you print out the all the numbers from 1 to 100 except if a number is a multiple of 3 you print out Fizz and if the number is a multiple of 5 you print out …
I was recently working through Chapter 9 of the 12c Database 2 Day Developer’s Guide and found the following bug in the sample code. Here is the original code: FUNCTION add_department ( p_department_name IN departments.department_name%TYPE, p_manager_id IN departments.manager_id%TYPE ) RETURN departments.department_id%TYPE IS l_department_id departments.department_id%TYPE; BEGIN INSERT INTO departments ( department_id, department_name, manager_id ) VALUES ( departments_sequence.NEXTVAL, …
Introduced in Oracle Database 11.1 The PL/SQL CONTINUE statement allows you to skip the current loop iteration. It can be used conditionally and unconditionally. Unconditional Example BEGIN FOR i IN 1 .. 10 LOOP IF i = 2 THEN CONTINUE; END IF; DBMS_OUTPUT.PUT(i || ‘, ‘); END LOOP; DBMS_OUTPUT.NEW_LINE; END; In the example above, there is …
Oracle 12c introduced the Identity Column. You can find out more about this feature in the new features guide and within the CREATE TABLE documentation. In this article I will use Tom Kyte’s run stats utility to compare the performance of the IDENTITY column with the explicit use of a sequence object. The script below will be used to …
….is that when you really need to, it allows you to turn up your applications instrumentation to 11. A 30 second PL/SQL Conditional Compilation overview PL/SQL Conditional compilation was introduced with Oracle Database 10gR2. The official documentation explains how to use the Conditional Compilation constructs but doesn’t give too many use cases. Fortunately the Oracle White Paper …
