(Jesse Smith) As your web site grows and images multiply, storing those images on the hosting server’s hard drive can turn a zippy hare of a site into a pokey tortoise. (Yes, they get there eventually, but users are impatiently waiting for a “photo finish”!) This article provides a set of simple
Other News
Using data federation technology in IBM WebSphere Information Integrator, Part 2: Usage examples and performance tuning
(Anjali Betawadkar-Norwood, Eileen Lin and Ioana Ursu) Data federation gives you a way to integrate the diverse data in your enterprise. This second article in a 2-part series discusses federated query optimization, demonstrates usage examples, and discusses performance tuning considerations for
Wed Yourself to UML with the Power of Associations, Part 2
(Anneke Kleppe and Jos Warmer) In the first article in this series, we explained the concept of associations in UML and showed how to implement them. This article takes that knowledge one step further and explains the UML association class and its implementation. The implementation examples are agai
Optimize SQL Server hardware performance
(Jeremy Kadlec) Tuning SQL Server for performance is in many ways like constructing a house. You must find a suitable location with rich soil, build a solid foundation to support two or three levels, install the electrical and plumbing, finish the walls for painting and decorating, and finally condu
Tuning Undo Tablespace
(Kimberly Floss) A company’s quarter-end processing includes several long-running transactions. At the same time, several customer service representatives are updating information contained in the same underlying tables.
Implementing the SQL Server Multiple Publishers and Central Subscriber Replication Topology
(Paul Ibison) This article describes how to set up the following topology where P1 and P2 are two different publishers and S is the central subscriber. This is a fairly typical requirement, e.g. the subscriber might be a head office and the publishers are each separate branch of a company. In th
Business Technology: Open Source: It’s Everybody’s Business
(Larry Greenemeier) As I wrapped up a story last week on the emergence of a new breed of open-source applications and the startup companies looking to cash in on them, I finally tracked down a source I’d been trying to reach for weeks: Sara Garrison, Visa USA’s senior VP of technology development fo
Preserving case-sensitive values in a federated system
In a federated system you occasionally need to specify values that are case-sensitive at the data source, such as user IDs and passwords. To ensure that the case is correct when these values are passed to the data source, follow these guidelines: –Specify the values in the required case and enc
Attributes and XML
(Jennifer Kyrnin) If you’ve written HTML, you’ve almost certainly used attributes without even realizing it. For example, the image tag requires the use of at least one attribute, the src attribute in order to display any images. But with HTML, if you include an attribute that is incorrect or invali
IBM Lays Path To Easier Data Integration
(Charles Babcock) What does a billion dollars buy these days? Maybe better data integration, especially for stake-your-career moments like a post-merger data meld.