Helskyaho - Oracle SQL Developer Data Modeler for Database Design Mastery

In the real world, the foundation of everything we think about and do is data. Our brains organize data by patterns, which is another way of saying sets. In the virtual world of programming, its still all about data. But now we have to build and manage the sets of data ourselves. We can and should use the SQL language as our means of communication, but even before that, weve got to make sure the data is organized so that it accurately captures entities and expresses the relationships between them. Skip or do a poor job at database design, and everything else in your application development process will suffer. Do it right, and everything that follows is more intuitive, easier to build, and much easier to maintain.

With long and deep experience, Heli has written an ideal guide to both database design and Oracle SQL Developer Data Modeler.

Steven Feuerstein

Architect, Oracle Corporation

Working as a database administrator and developer, one of the hardest problems you encounter is coming late to a project that is suffering from performance problems. In many cases the problems are caused by fundamental flaws in the database design. Identify these too late in the development process and the job of redesigning the database and refactoring the associated code can be a huge problem.

Over the last 30+ years programming paradigms have come and gone, but data has remained king. Regardless of your chosen development methodology, if you are planning to use a relational database, you have little choice but to spend time on the design phase. Trying to cut corners will always results in problems later.

Tim Hall

Oracle ACE Director

Database Administrator, Developer, and Author

http://oracle-base.com

Data modeling is critical to success. Data modeling and data design are now more important than ever. With the onslaught of big data, our job is even more critical; turning data into information is a necessary task and cannot be accomplished without understanding what the structure of the data really is. If we do not turn our focus to understanding the structures of the data, then we cannot properly identify it or make sense of it, much less turn it into information that the business can utilize.

Dan Linstedt

Founder and CEO

http://LearnDataVault.com

Enterprise applications are used to enable business. A great application not only supports a process but allows the organization to understand what is happening and allows it to respond. Key to all this is the data, and a well-designed database allows that access and flexibility.

My reality is that whenever I have struggled to get the information I need from an application, it has been because of poor database design. This book will help reinforce the need for good-quality database design.

Debra Lilley

ACE Director

The idea of producing a formal database design is regarded by many as being old-fashioned these days. However, from my 25+ years experience of working in the field of database performance, I do see a clear correlation between the time spent designing a database up front to meet the functional requirements and the chance of success of the project. The correlation in the other direction is even clearer; if time is not invested in understanding the requirements of the application system and in understanding the database that stores its data, then the chances of building a system that meets user requirements is small, and the probability of heading off on a tangent from the core requirements is greatly increased. Performance cannot be retrofitted to a system; it has to be designed in.

Using tools to help automate the design process, as recommended in this book, reduces the time needed for the design stage and makes it less likely that there will be a temptation to short the design stage. And that has to be better for everyone.

Graham Wood

Architect

Oracle Corporation

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