The DBMS_SQLTUNE package is the interface for tuning SQL on demand. Its Doc pages are here
. Have a look. There is a lot of stuff to do to set a tuning task, run it, report on it and then get it to do something useful. We've wrapped all that into our SQL Tuning Advisor function which means you dont need to start writing plsql API calls to make this work. Stick in your dodgy query, click the advisor button and visualize the results.
Here's a look at how to do this. Firstly, we need to grant a few permissions to our user. I'm doing (more...)
One of the features exposed since SQL Developer 1.5 is the hierarchical profiler. There have been several blogs and things about this but none I think that really get into the detail of what you are seeing and how to do it.
The hierarchical profiler allows you to see what happens when your piece of PL/SQL is running. More specifically, it allows you to see where it is spending most of its time, which means you can concentrate on hammering that down, rather than wondering where to start.
For today, I'm using a really basic reference table with a few rows (more...)
As part of the development process, we all have to work out the bugs in our code. For all of us who use SQLDeveloper , we know how to debug with SQL Developer. Compile for Debug, breakpoint and go. However, People still get confused by what remote debugging is and how it works. At its most basic, it allows us to run a procedure in a session and debug if from another.
So, Lets say we have a simple procedure on employees table like this.
create or replace
ID IN NUMBER
) RETURN VARCHAR2 AS
We've done a number of posts on using the Oracle Developer Day VM's and this is an addition to it, showing how we can set up a subversion repository using apache web dav for access. I'll keep this really simple so the steps should doable, straight one after the other.
On the Oracle Developer Day image, we have installed SVN so we can use it as our source control system. Lets find our svn.
[oracle@localhost ~]$ which svn
We can check if we have the right modules installed for apache, which in this case is mod_dav_svn.
In our previous post, Application Migration -Part 1
, we introduced application migration for change of database. In the examples, we cited Sybase to Oracle. In this post, we will introduce the way we can scan the application for items of interest and report on those with Oracle SQLDeveloper
. In our third post, we will replace and translate the items found so we can run the application in Oracle.
Since SQL Developer 3.1 we have had the ability to scan source files and replace the items we find with appropriate changes.
The application migration functionality uses XML rules to define the type of (more...)
As many of you know @krisrice put together a great VM for the Oracle Developer Days and while the content is great for education, I find us using it more and more a default scratch database on laptops. As usual, being 'Networkly challenged', it took me some time to figure out which network adapters did what and why. This is as much a note for me as it is to share with you :).
First of all, you need to install VirtualBox, which is found here
. Then download one of the prebuilt VirtualBox images for the Developer Days. You can choose (more...)