Web Development Information |
|
What is SQL?
What is SQL? SQL stands for Structured Query Language and is the lingua franca in the database world. SQL is a standard that is used by all database vendors and programmers to define, extract and access the information that is stored in databases. SQL began life as an IBM creation but was standardized by the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO) as ANSI/ISO SQL in 1988. Since then ANSI/ISO SQL standard continued to evolve. The ANSI-SQL group has since published three standards over the years: 1. SQL89 (SQL1) 2. SQL92 (SQL2) 3. SQL99 (SQL3) SQL is a query language. It is English-like and easy to use. However, although there are more than 90 SQL reserved words, most programmers seldom use more than the following handful of commands - SELECT, INSERT, UPDATE, DELETE, FROM, WHERE, HAVING, BETWEEN, LIKE, OR, AND, NOT, IN, ORDER, GROUP and BY. For example, if you had a database table named "employees" and you wanted to retrieve all records where the employee has the last name "goodman", you would use the following SQL statement: SELECT * FROM employees WHERE lastname = 'goodman'; There are many different categories of SQL statements but the basic ones which all programmers should be familiar with are the SQL statements that: 1. Create tables and manipulate their definitions 2. Query the table data 3. Manipulate the table data SQL is predominantly used by 2 types of users - programs and humans (keying in the commands through a database client) - to pass instructions to databases. SQL commands can be keyed into a database client like the MySQL Query Browser or the SQL Server Enterprise Manager and executed to either return a result or modify records in the database. SQL can also be used in conjunction with programming language or scripting language like Microsoft Visual Basic or PHP to communicate with the database. Although SQL is a world standard, it is unfortunate that most database vendors have come up with different dialects and variations. This is because every database vendor wants to differentiate their database products from the crowd. One good example is Microsoft SQL Server's TRANSACT-SQL. TRANSACT-SQL is a superset of SQL and is designed for use only with Microsoft SQL Server. Although it does make programming much easier for software developers, it is not compliant with other databases like Oracle or MySQL - making TRANSACT-SQL programs non database-portable. As such, although many of these features are powerful and robust, it is good practice to exercise caution and limit your SQL use to be compliant with the ANSI/ISO SQL standards and ODBC-Compliant. Courtesty of SQLPrimer.com. For more information, please contact the Webmaster of SQLPrimer.com - http://www.sqlprimer.com.
MORE RESOURCES: Best web design software of 2024 TechRadar My Sublime Text Setup in 2024 for Web Development Laravel News 9 Chicago Web Design and Development Agencies To Know Built In Chicago Why (and How) I Learned Web Development as a Data Scientist Towards Data Science The future of web development AWS Blog Best web development tool of 2024 TechRadar This Web Development Grad is Developing for Esports Full Sail News From Data Scientist to AI Developer: Lessons Building an Generative AI Web App in 2023 Towards Data Science How Much does Website Development Cost in 2024? Appinventiv PHP[TEK] 2024: Pioneering the Future of Web Development in Chicago Security Boulevard Angular 18 will arrive next week InfoWorld Wakulla Correctional Institute inmates learn web development, life skills through coding program WCTV Charlotte ad agency AC&M Group acquires Argentina web development company Axlot The Business Journals 11 of the Best Web Development Agencies in New York + Tips on How to Choose the Best Agency Influencer Marketing Hub Aligning in html - HTML & CSS SitePoint Trying to locate text - PHP SitePoint Launch Code recruiting applicants for its free web development course KTVI Fox 2 St. Louis Top 32 Web Development Agencies For All Things Technical Influencer Marketing Hub Web Developer: Best Low-Stress, High-Pay Job in America? Dice Insights 15 Highest Paying Countries for Web Developers Yahoo Finance Best PHP Frameworks for Web Development in 2024 Simplilearn Can AI-Powered Tools End the Web Developer Shortage? Spiceworks News and Insights How to Use Node Js for Backend Web Development Simplilearn 38 Web Development Stats You Should Know in 2024 Influencer Marketing Hub Leaked: New Web Development Tools from Google AI Business 9 Simple Projects to Learn Front-End Web Development Yonkers Times Top 16 eCommerce Web Development Companies To Grow Your Sales Influencer Marketing Hub Watch this web developer dismantle vintage computers Technical.ly Netlify Announces Software Developer Kit (SDK) to Accelerate Modern Web Development for Enterprises PR Newswire Best Linux distro for developers of 2024 TechRadar The Web Coding Boot Camp Harper College News The Life of a Computer Programmer Southern New Hampshire University Web Design Companies & Agencies In Austin To Know Built In Austin I have a problem with header() - PHP SitePoint Web Design and Development Alumni Highlight: Jenna Smith | Digital Media Utah Valley University |
RELATED ARTICLES
Developing A Website: 10 Tips For Getting Started 1. Be clear on your purpose. What Hosting Companies Dont Tell You, Could Hurt You? Did you know that hosting companies overcrowd their servers despite all the issues caused by servers running hundreds of accounts? Are you aware of what happens if your website is hosted on a server that's overcrowded? You're probably thinking to yourself, "what do you mean overcrowd their servers?" Overcrowded servers mean big money for your hosting company, but also big problems for your website.Hosting companies are willing to sacrifice the success of your website in order to build their own profit. What Business Owners MUST Know BEFORE They Commit To Having A Web Site Q1.Why would I need a web site?A1. 3 Essential Tools Every Website Designer and Marketer Needs Appealing to others is really important when you have a web page. This is because you will not have any personal contact with visitors and cannot persuade them to buy from you or come into your store, not personally that is. Warning: The Truth About Having a Web Site! If you don't have a web site yet, are thinking of slapping one up or have one that simply isn't producing, this Warning is for you!All too often folks contact me about getting a Web Site when they really have not done their due diligence in determining even if their "idea" is one worth investing in. And although they hate spam and don't believe most of it, they do tend to fall into believing much of the fast, easy and cheap noise online in existence only to line the pockets of shysters and unscrupulous developers. What Works and What not Works for Your Internet Business "Build it and they will come."--Filed of Dreams (1989) If you are working on an Internet business, you may read a lot of information for how quickly you can make money online. Preventing Repeat Form Submission Using PHP Sessions We've all seen those messages on some websites warning not to click a button more than once or negative consequences, like paying a bill twice, may result. Sometimes we can cause these problems by hitting the back or refresh buttons. Ten Major Tips to Develop a Multilingual Web Site to Work If you are living in a country that its native language is something rather than English language, then you may like to develop your website to offer content in the language of your own country.There are millions of websites on the Internet that are all in English language but there are billions of people on the earth that speak in a different language and are not familiar with English language. Earn On Offshore Web Design and Development If you have some experience in web site design and want to make good money you can try acting as IT-outsourcing partner. Learn more what you should know and how to start. The Evolution Of Search There have been many significant changes to the face of search over the last several years with engines becoming more intelligent than ever before. Today's users expect mainly fast, easy, relevant and satisfactory search results. Build It and They Will Come Build it and they will come is not always true; you have to form a relationship with the company before you will get quality attendees or participants for a free service.The key to a human's heart is through food. Five Question-Five Minute Web Makeover Quiz If you haven't made the sales and built your clients to an income you want, then you may need a Web Site makeover.What I mean by that is, most people contact a web master to put up their site. 2 Key Ways to Make Your Site a Success If one more business owner tells me their website sucks because they're just "too darn busy to deal with it", I'm gonna hurl. That's like saying, "I'm doing business in my dirty underwear because I'm too busy to get dressed. A Website Is Not Enough Your ObjectiveYour small business needs an appealing and professional website but that is just the beginning. If no one visits your website and -- more importantly -- if it does not bring in new customers and allows you to sell more to your current customers, then your site is not effective. Website Sales: 10 Reasons Why People Dont Buy From You You've put up a website to promote a product orservice.You've spent piles of cash to generate traffic. Get Your Business on the Web I can't think of any business alive today that couldn't benefit from at least a minor presence on the web. Now that I've made that statement, I'm sure someone will point out one. Making Your Websites More Compelling The Internet is a remarkable publishing medium. With just a little effort, you can make your web pages visually irresistible by playing with color, shapes and text. CSS - Maximum Benefits What is CSS?CSS is a simple file which controls the visual appearance of a Web page without compromising its structure. Using CSS we can control our font size, font color, link color and many other attributes on our web page. Five Essential Questions to Answer Before Creating Your First (or second...or third) Website Right after the thought, "I need a website," people usually say, "I need a web designer!" Actually, before even whispering "web design," you need to answer these five questions in as much detail as possible. Once you're clear on your strategy, you can provide better information to your web designer. 7 Reasons YOU Need a Website 1) A marketing necessityI still hear it said from time to time that you really do not need a website if you are a private practice professional. I disagree. |
home | site map |
© 2006 |