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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.
Working on Your Own Time: It’s What Freelancing is About (freelance jobs) Do you have a busy life? Do you wish that you could schedule your work around the rest of your priorities? You work to make money so that you can live. You have no choice but to pay for housing and food and other life necessities. Because you need the money, work tends to creep up to the top of the priority list. Other things are more important though. Freelance jobs allow you to put work where it belongs on the list of priorities. You can play with your kids when they’re home, enjoy doing the things you enjoy outdoors while it’s daytime and spend your Sunday mornings at church instead of behind a counter. The work still needs to get done, but you can do it when you have time instead of from nine to five, Monday through Friday or worse, whenever you’re put on the schedule. Kinds of Freelance Jobs Do you have the appropriate skills and abilities to work at freelance jobs? There are many, many different kinds available. Those with professional degrees can consult. While the jobs that result from extensive education generally lead to many hours working for a good salary, your education can lead you in another direction. If you can manage to find the clients, you can work by appointment only, guiding those who do not have the experience or education that you have. If you are not a professional, you may still have the appropriate talents that will get you into freelance jobs. Writing is a very popular freelance opportunity. You live in a world that relies on the written word. You do not go through a single day without reading a considerable amount of text. Someone needs to do all of that writing, and much of it is hired out to freelancers. Actually, any skill that you possess may be suited to freelance work. Check out a few job boards and find out who’s hiring. Tips of the Trade Freelance jobs are out there, but so is the competition. To get yourself to the top of the hiring list, there are a few things you can do. First, use any experience you have to your advantage. Even if a previous job was short term or didn’t seem significant to you, you gained experience there. Let the employers know about everything you can do. Another thing you must do as a freelancer is to be very consistent and organized. An employer will be much more likely to rehire you if you turn out a good product. Everything you turn in should be clear and professional. Always meet deadlines. While most of the freelance jobs are extremely flexible, allowing you to work at your convenience, there are still deadlines. The work needs to be finished when the employer asks for it. Most of the qualities that will get you more freelance jobs only require common sense and a good work ethic. Living on Sparse Paychecks One downside of freelance jobs is that they are not necessarily consistent. Especially if you jump from one job to another, working for different companies, you will not have any guarantee about how much you will get paid each month. The flexibility may or may not be worth the uncertainty of freelancing to you. If you can manage to save effectively, the distance between paychecks won’t matter. If you do get frustrated about always wondering where the next paycheck is coming from, just remind yourself that the trade off is getting to enjoy more precious time not tied to a desk. There are definitely pros and cons when it comes to freelancing. You just need to decide how important it is to you to prioritize your life around what really matters to you. How to Work the Internet to your Advantage in a Job Search Are you on the hunt for the perfect job? If you need a new job and you are spending every day running out and buying a paper and flipping through the classified ads, you are way out of date. The newest way to find a job is to use the Internet in your job search. After all, nearly everything else people do these days is done online, so why not looking for your next job. The best part is that the Internet is much better than the classified ads in your local paper when it comes to finding a job you love. When you search for a job online, you have a world of employment opportunities right at your fingertips. There are many ways you start your search for jobs online. There are several websites that are dedicated just to job hunting. On these kinds of sites, you can search through a database of literally thousands and thousands of jobs until you find some that appeal to you. Most of these websites let you search for jobs using many different criteria, from job location to job field to starting salary to jobs that let you work from home. These websites can be a wonderful way of getting a feel for what kind of jobs are out there and what the going rate of pay is for any job in any industry, and how that pay fluctuates regionally. In addition, these sites are also ideal if you are thinking of moving, and want to move to someplace you can find a job. If you don’t care where you move, you can look for cities where the job market is hot. If you know where you want to move, you can look for jobs in your desired city and get the inside track on the job market from no matter where you are. Additionally, on these job listings websites, you can upload your own resume to the site. That way, you can apply to jobs through the website with the click of a button, and potential employers can find you when they are looking for someone with your skills. Another way you can use the Internet to your advantage when you are hunting for a job is to build your own job hunting website. Create a website that showcases your resume and all of the work experience you have. You can set out your career objectives and show off any special skills you have. Having your own website is a great way to direct potential employers to where they can find more information about you and is a handy way of getting the message across about skills or achievements you have that may not be right for inclusion on your resume. If all of this sounds like casting the net a little too wide for your tastes, the good news is there are now local job listings websites in most towns. These websites work in much the same way was the larger job hunting websites, but they only list local jobs and only allow local workers to upload their information. Remember that the Internet cuts both ways when looking for a job. Just as you might Google a potential employer, so they may Google you. Be thoughtful about what you post about yourself on the Internet. If you don’t want your potential boss to know about that time you had too much to drink and passed out in your friend’s front lawn, don’t post the picture online. Likewise, be careful when blogging about political, religious or off-color topics. Almost anything you say online can be traced back to you, and may be used against you in a job hunt. |