Skip to main content

High Performance PL/SQL

PL/SQL is a key enabling technology in Oracle Database. You should make sure that you are aware of and take advantage appropriately key features of the PL/SQL language focused on performance.

I offer a short list of those features below, along with links to related resources. Most of this is also capture in this slide deck:



Key Performance Features

All of these are covered in the slide deck above; the links will take you to the documentation on these features. Click here for the overall section in the doc on performance and optimization.
But Don't Forget About SQL Optimization

Chances are you could take full advantage of all the features listed above and more in PL/SQL, and still end up with a slow application. That's because at the heart of every application built on Oracle Database are your SQL statements, and if those are not optimized, you can pretty much forget everything else.

Here are some links you might find helpful in this regard:

(list under construction - please offer your suggestions in Comments)

Labels:

Comments

Post a Comment

Popular posts from this blog

Quick Guide to User-Defined Types in Oracle PL/SQL

A Twitter follower recently asked for more information on user-defined types in the PL/SQL language, and I figured the best way to answer is to offer up this blog post. PL/SQL is a strongly-typed language . Before you can work with a variable or constant, it must be declared with a type (yes, PL/SQL also supports lots of implicit conversions from one type to another, but still, everything must be declared with a type). PL/SQL offers a wide array of pre-defined data types , both in the language natively (such as VARCHAR2, PLS_INTEGER, BOOLEAN, etc.) and in a variety of supplied packages (e.g., the NUMBER_TABLE collection type in the DBMS_SQL package). Data types in PL/SQL can be scalars, such as strings and numbers, or composite (consisting of one or more scalars), such as record types, collection types and object types. You can't really declare your own "user-defined" scalars, though you can define subtypes  from those scalars, which can be very helpful from the p...
24 comments
Read more

Three tips for getting started right with Oracle Database development

By "Oracle Database development", I mean, more or less, writing SQL and PL/SQL. I assume in this post that you have access to Oracle Database (which you can get via Cloud services, Docker , GitHub and OTN ). A. Use a powerful IDE, designed with database programming in mind. There are lots of editors out there, and many IDEs that work with Oracle Database. Sure, you could use Notepad, but OMG the productivity loss. You could also use a popular editor like Sublime, and then it get it working with Oracle. I suggest, however, that you  download  and install Oracle's own own, free, powerful IDE: SQL Developer . If you like to complement your graphical IDE with a command line tool (or OMG if you actually prefer  a command line tool to a graphical interface), you should also check out the relatively new and generating-lots-of-excitement SQLcl . B. Enable compile-time warnings and PL/Scope. The database has tons of useful functionality burned right into it, ready for...
8 comments
Read more

The future of Oracle PL/SQL: some thoughts on Sten Vesterli's thoughts

Sten Vesterli published a very thought-provoking post on his blog: Please stop reading this post, and read that one. When you are done, come on back here for my thoughts on Sten's thoughts. OK. You read it. Here we go. First, thanks, Sten, for being such an interesting, wise, sometimes provocative voice in our community. Next, Sten writes: Now, on the one hand, I certainly agree that the vast majority of young developers are currently caught up in the modern version of a Gold Rush, which is: "Build an app using JavaScript, pay no attention to that database behind the curtain." But I can assure you that I still do meet young PL/SQL programmers, regularly, when I am at conferences and doing onsite presentations at companies. So, young person who writes PL/SQL: do not be afraid! You are not alone! And you are super-smart to have made the choice you did. :-) Next, Sten offers this advice to managers: I agree that PL/SQL is a "spec...
46 comments
Read more