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Web Hosting - Databases, What Are They and Do You Need One?
'Database' is one of the most commonly used terms that one encounters in web site design. Yet, what they really are and whether they're essential is often not clear to novices.
A database is a collection of organized data, stored in files that have a specific structure. It's that organization and structure that allows for easy and rapid storage and retrieval.
The need for a database generally only arises when you have a certain amount of information and that information needs to have some structure. If you have a half-dozen names and addresses to store, a database is usually overkill. If you have a blob of data with no relationships between any of the items in that blob, maintaining a database is usually more trouble than it's worth.
Maintain a database? Yes, like other complex systems a database, to be effective, needs to be designed properly at the outset then kept 'tuned' for good performance. The alternative is to gradually allow the database to become more and more disorganized. That leads to difficulty in use, poor speed of retrieval and more frequent failures.
With MySQL, Access or MS SQL Server, the three most common choices of database product for web sites today, setting up a database is relatively simple. Even those with limited technical skill can get one up and running just by following some simple instructions. But some thought should be given to how you want the information organized, and to maintaining the system during its lifetime.
Suppose you have a set of names, addresses, email addresses, products purchased, date purchased and amount. If you have only a few dozen records it matters very little how these pieces are arranged and related. A database usually isn't even warranted in this scenario. Once you have several thousand or more records, it matters a lot. Speed, the ease of expanding the set of attributes (like adding, say, product category), and other issues come into play.
Even those with little technical expertise, but a willingness to exert logical thought and invest some time, can build a very robust database. Think about how you would organize a set of data (called 'tables'). Should Name, Address, and Product be in the same table? Or should the personal information be stored in one table and any product information (product, price, ...) in another?
Some experimentation may be needed to get it right, but the choices have an impact on how easy the tables are to maintain. It also affects the speed with which programs can fetch old data and store the new.
Having a database also introduces new maintenance issues for the server administrator, since backups usually need to be done differently. Recovering a failed database is usually more complicated than simply re-copying files from yesterday. Ask your hosting company what tools and skills they have for dealing with any database system you consider.
It's true that introducing a database creates more complexity and the need for additional thought and administrative effort. At a certain level, professional expertise will be needed. But clearly the advantages outweigh the costs in many cases. Companies large and small eventually use databases to store and organize data. At some point, you may be fortunate enough to be one of them.
What to Think about While Choosing a Writing Desk (writing desk) Writing desks come in many shapes and forms. The technical definition is a piece of furniture with a surface for writing, with drawers and pigeonholes for writing materials and a portable case that when opened forms a surface on which to write. A writing desk could be as complex as that definition or as simple as a desk for writing. Basically a writing desk can be anything that you want it to be. You may not need to buy a writing desk. You may be perfectly comfortable with one you already have or working on the couch or at the kitchen table. This is fine. If it is a cohesive work environment for you that is fabulous, but some writers require a more formal, dedicated area just for them. By finding the perfect writing desk, you are on the way to the start of creative that work style atmosphere that they need. Before you begin your writing desk shopping venture you must first have two things picked out. The area in which your desk is going to go and the chair you are going to use. The location of the desk is important because it will be necessary to choose a size and style. The chair is important for comfort and maybe an important factor in determine the correct height of desk needed. Once these are figured out you shopping journey is ready to begin. While shopping for a writing desk the most important feature is comfort. You need to sit at the desk for most likely for hours at a time. Having a desk at the right height is imperative to this. With the writing surface being to high or to low will not only be uncomfortable but also will more that likely make it difficult for you to concentrate and write. Having a writing desk that is not the correct height is likely to cause neck and back strain. The function and the size of your writing desk are the next factors you need to consider before you purchase one. Do you need one with a little storage or a lot? Does it need to have an adjustable surface or can it just be flat? With all the choices available assessing what you need can help narrow down the ones that will work for you. How big of a space do you have for it? These are some simple considerations that are often forgotten while buying a writing desk. It would be terrible to fall in love with a desk and bring it home just to find out that it is not going to fit. The next important thing is style. When choosing the style of the writing desk you will want it to flow with the furniture already in your home. If your home is modern or contemporary you may want to choose one of the metal and glass desk designs or perhaps one with light wood tones and metal accents are right for you. Another great writing desk available is called the secretary. The secretary is wooden desk with drawers on the bottom and a fold down writing surface. They are usually compact in size but have ample storage and often offer shelving covered by glass doors on top. Plus having a fold down writing surface, it is easy to close up when you are done and hide you space altogether. Choosing the writing desk that is right for you may not seem that important. I mean how difficult could it be to choose a surface to write on, right? But making sure comfort, storage, and style fit into your lifestyle is an important decision. This is part of creating a suitable working environment for you to produce your work. Web Hosting - How To Select A Web Host As with many purchases, our first impulse when selecting a web hosting company is to go with the cheapest. Hey, they're all alike, why pay more? Au contraire. There are a number of objective criteria that separates one web hosting company from another and money is only one of them. And not the most important one. Selecting a company based on price alone is equivalent to selecting an auto mechanic on price alone. Sure, he may maintain or fix your car cheaper. But will the car spend all the time in the shop and none on the road? The first consideration is 'horsepower'. Do they have the capacity to carry your load and deliver decent performance? Most hosting companies will advertise that they have huge bandwidth and hundreds of servers. They're usually telling the truth. But there's a difference between existing capacity and usable capacity. If they also have thousands of sites with millions of visitors per day the available or free capacity will be much lower. A big pickup truck may be able to tow 5,000 lbs. But not if it's already carrying 4,999. Be sure to ask about available capacity, and have the prospective company back it up with reliable numbers. If you can't interpret the information they provide, find someone to help you do so. Next, and a very close second, is reliability. A lot of power is worthless if it's cut often. Outages are a normal part of business. Even Google and Microsoft go down from time to time. The difference is, it happens rarely and they have failover plans. That means, if their site/system does go down it's either up again in a flash, or you never see the outage because a backup system kicks in automatically and seamlessly. Be sure to grill the company closely about their up time. They'll often tout 99.6%, or some such figure. But, like the on-time figures of the airlines, those numbers can be shaded by adjusting the definition of 'up time'. What matters to you is whether your visitors will be able to reach your site at any time of the day or night they might want to. Find out what systems, both technical and human, they have in place to deal with failures of all sorts. Servers can go down, networks can fail, hard disks can become defective and lose data even when the other components continue to work fine. The result is YOUR site is unavailable, which is all that matters to you. The web hosting company should be able to deal with all of that and have you up again very quickly. Last, but not least, is security. With the continuing prevalence of viruses and spam, you need to know that the web hosting company you select has an array of methods for dealing with them. That means a good technical plan and staff who are knowledgeable in dealing with those issues. The old saying: 'an ounce of prevention is worth a pound of cure' is more true here than anywhere else. All these issues are central to finding a web hosting company that can deliver the services you need. After those criteria are satisfied by a number of candidates, then you can start narrowing them down by price. |