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Always use direct I/O with Oracle

Donald K. Burleson's picture

Many Oracle shops are plagued with slow I/O intensive databases, and this tip is for anyone whose STATSPACK top-5 timed events shows disk I/O as a major event.

Streamlining Oracle 9i ETL With Pipelined Table Functions

Mark Rittman's picture

I've recently been reading Bert Scalzo's "Oracle DBAs Guide To Data Warehousing And Star Schemas", and he's got an interesting take on the ETL process that I thought it worth looking at in more detail.

JDBC 3.0 - Part II: : Transaction Fundamentals

Saikat Goswami's picture

This article explores the fundamentals of a transaction, in the context of JDBC, Enterprise Java Beans and a database.

Oracle 10g New Features: Changes to dbms_stats

With Oracle Database 10g, there are some new arguments available for the dbms_stats package subprograms. Those parameters are as follows:

  • granularity
  • degree

Oracle 10g New Features: Advisory Framework - ADDM

Advisors are the server components that provide you with useful feedback about resource utilization and performance. The most important of all advisors is the Automatic Database Diagnostic Monitor (ADDM). ADDM does analysis of the system, identifies problems and their potential causes, and comes up with recommendations for fixing the problems. It can call all other advisors also.

Oracle 10g New Features: DML Enhancements

In this article (chapter) we will look at new features surrounding the DML commands INSERT, UPDATE, and DELETE.

Improved 10g management with EM

Donald K. Burleson's picture

Just a few years ago, many senior Oracle DBAs detested Oracle Enterprise Manager (EM). Viewed as a crutch for beginners who could not memorize the command syntax, EM was largely ignored by the veteran DBA who preferred the ease and certainty of the SQL*Plus command-line interface. This is about to change.

Oracle 10g New Features: Flashback and RMAN

Two improvements have been made in the backup and recovery areas in Oracle 10g. When user errors and logical corruptions occur in the database, flashback functionalities provide fast and flexible data recovery. When physical or media corruption occurs in the database, RMAN delivers an improved and simplified recovery method.

JDBC 3.0 - Part I

Saikat Goswami's picture

This article is the first of a series. In this series, we will discuss all the good things JDBC® 3.0 package has to offer. JDBC API provides a programmatic way of accessing data from Java code. Even though non-relational data can be accessed, the goal of JDBC and the technology revolves around accessing relational data. The JDBC is packaged in the java.sql and javax.sql packages.

Building Oracle Applications that use Bind Variables

Mark Rittman's picture

If you've been developing applications on Oracle for a while, you've no doubt come across the concept of 'Bind Variables'. Bind variables are one of those Oracle concepts that experts frequently cite as being key to application performance, but it's often not all that easy to pin down exactly what they are and how you need to alter your programming style to use them. With this in mind, I've tried to pull together the key information about bind variables and why they are a 'good thing' when building Oracle applications.