This post picks up on two ideas in my last post. The first idea is that IT will have significant change, in part, from the adoption of Cloud Computing. Take a look at IT Departments Won’t Exist in Five Years at Computerworld.com. It states that: Consumerization of IT and self-service trends will lead to a [...]
June 12, 2013
Two recent surveys (details below) support the driving and restraining forces related to security shown in the Force Field Analysis for Using a Public Cloud instead of an In-House Private Cloud posted a couple weeks ago. Participants in both surveys were Cloud users. Data supporting the driving forces: The TechInsights Report 2013: Cloud Succeeds stated [...]
June 9, 2013
Last April, Jason Bloomberg of ZapThink issued a ZapFlash titled Cloud Computing: Rethinking Control of IT. I thought it would be useful to organize his arguments into a Force Field Analysis as described in Web Services, Service-Oriented Architectures, and Cloud Computing. The following analysis also includes information from two other ZapFlash entries that Jason referenced [...]
June 5, 2013
After last week’s posting, I thought I should say more about incremental SOA analysis. The following is from Chapter 10 in Web Services, Service-Oriented Architectures, and Cloud Computing. Service-oriented architecture (SOA) projects are no different from other IT projects in that larger projects tend to fail and issues regarding change can scuttle projects. This chapter [...]
May 29, 2013
Computerworld had an article last January that discussed American Airlines’ approach to using Web Services and multiple enterprise service buses (ESBs) as part of their service-oriented architecture (SOA). The authors emphasized a change from build vs. buy and from using mainframes. That, however, is not the part I found interesting. (Also, several comments to the [...]
May 22, 2013
SQL-92 was developed by the INCITS Technical Committee H2 on Database.
This committee develops standards for the syntax and semantics of database languages.
SQL-92 was designed to be a standard for relational database management systems (RDBMSs).
It is based
SQL-89, which in turn was based on SQL-86. SQL-92 was developed by the ANSI
(then NCITS, and now INCITS) X3H2 committee, which originally began work on a SQL standard in 1982.
SQL-92 does not address objects in any way. Nevertheless, SQL-92 forms the
basis for JDBC, SQLJ, SQL:1999, and ODMG OQL. Each of these specifications are
covered in other parts of this section. See the related content below.
SQL is a database sublanguage that is used for accessing relational
databases. The letters don't stand for anything.1 A database sublanguage is one
that is used in association with some other language for the purpose of
accessing a database. This results in a programming style illustrated by the
embedded SQL statements in the
An example of an embedded SQL statement that creates a new Person instance
EXEC SQL BEGIN DECLARE SECTION;
EXEC SQL END DECLARE SECTION
INSERT INTO person VALUES (:ssan, :name);
This code would be in addition to any host programming code. The variables :ssan
and :name would need to be set by the host program using the host programming
language before execution. If you also wanted to manipulate this new Person
instance in the host program, you would need programming code in
addition to this code fragment that populates the instance in the programming
language along with the instance in the database.
1. According to Jim Melton, the editor of the SQL standard, the
proper pronunciation is "ess cue ell," and not "sequel" as
is commonly heard. Jim also says that SQL stands for "SQL Query
Language" and notes that this is a recursive acronym. In some early prototypes, SQL stood for "Structured
Query Language." That is not true for the standard.
There are over 450 pages of articles on this site with over 40 pages on database concepts and standards.
Search this site for more articles
Browse this site for more articles
Click on the topics below to browse the articles on this site. You can see more detail by clicking on the arrows. This highlights the location of the current article: SQL-92.
The Savvy Manager's Guide
Douglas K Barry has prepared the material on this site. He is also the author of a book that explains Web Services, service-oriented architecture, and Cloud Computing in an easy-to-understand, non-technical manner.
Web Services, Service-Oriented Architectures, and Cloud Computing: The Savvy Manager's Guide (Second Edition)
by Douglas K Barry with David Dick
One of the toughest jobs for managers today is keeping up with the rapid changes in technology. An important change in technology is that the future of software will involve service-oriented architectures with some form of cloud computing. More and more services are available on the Internet. Nearly every day, we can discover new opportunities to connect these services together to create service-oriented architectures (SOAs). These SOAs will require less custom software in organizations, but will likely demand more creativity in the selection and assembly of services. This is a natural evolution of software technology and will be explained in this book.
This is a non-technical book on a technical subject. It assumes no prior knowledge of the technology. It is written with a high-level view at the beginning of the book. As the book progresses, technical details are introduced and explained. You can stop reading at any point once you have enough understanding for your use.
"Web Services, Service-Oriented Architectures, and Cloud Computing by Douglas Barry provides easy-to-follow guidance around the proper use of web services, how they exist within SOA, and how the emerging use of cloud computing correctly fits into the mix. This is something that most in this industry can neither define nor implement, and getting it right the first time is critical to success. If you're looking to understand the true nature of web services, SOA, and cloud computing—including the underlying details—then you should begin by reading this book."