A lot of people prefer storing their data in databases instead of flat files and there are many reasons for this. One of the reasons is that data can be found and grouped much better, when stored in a database. The capability to extract data out of the database depends on the possibility to structure queries. It is relatively easy to structure queries in Access 2007, because this application is designed to work with many different kinds of operators.

Operator is a specific symbol or saved word, which triggers the database to perform a certain action. Access 2007 is made to recognize several kinds of operators such as arithmetic operators, comparison operators, logical operators and expressions including like, between… and, in, etc. when you structure your Access 2007 queries, you can also combine these operators.

You can ask Access to perform some kind of comparison between two values using the comparison operators. When used in a query, comparison operator can find all records with a field value which is greater, equal too, less than, not equal too, etc. to a specified value. These operators can be used with all fields that have a literal value, which is a value that has been entered into the field directly. There are four literals, which Access recognizes. They are text, dates, times, numbers and constants.

As for the arithmetic operators, they include basic mathematical operators. Operators, which Access recognizes, are addition, subtraction, division, multiplication, modulus, exponentiation and unary operators. Arithmetical operators are used to build different mathematical expressions like formulae and others. You would also use these operators for calculating the total value of records or for creating an invoice.

There is also “like” operator, which can be applied to define less specific search criteria. This operator is also used with a wildcard * or ?. The ? wildcard replaces a single character. And the * wildcard is used for the string of characters. So, when you run a query “like a?c” or “like a*c”, Access will produce the results containing words beginning with a and ending with c, but with a different amount of characters in between. The “between…and” operators are recognized by Access for identifying a range of different values. You can use it to limit the range of values.

Access 2007 also recognizes logical operators, which are and, or, not, eqv, xor and imp. The “and” operator will return the real value only when both conditions are true, while “or” operator will return the true value when at least one of the expressions is true. The “not” operator negates the condition. As for the “xor” operator, it is the exclusive “or”, so it gives a true value if only one expression is true or not true. The “imp” operator gives a value when the first expression is true and the second one is not. And “eqv” operator gives a true value, if both conditions are equal.

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One of the many useful values of the Microsoft Access database is the possibility to create reports. There are two basic report formats in Access 2007. They are tabular and columnar formats. Access report in tabular version looks a lot like Excel 2007 data sheet or the one from another spreadsheet programs. As for the columnar report, it devotes a column to every record. You can also set up a multi-column report in MS Access 2007.

Multi-column reports allow us to report data neatly and efficiently on a single page. Before setting a record like this up, you should understand that the page will be separated into several columns where your data will be displayed. But you will be working with only one column in the layout mode. The report will be seen in a multi-column format only during the preview or when you print it out.

You will set up the margins in the master column and these margins will be used for all columns on the page. You will have to define the margins of the column and the width of every one of them, making sure that they don’t exceed the needed width. You will be able to see how wide your columns are with the help of the horizontal ruler, which you can find at the top of the master column. Another method to define the widths of columns is by using the command Layout>Ruler. After you set your width, you have to adapt the width of the report, so that it could match the width of the column.

You can also change the page setup, column setup or printing options with the help of Page setup tab. If you want to add changes to the column setup, you should choose the Columns tab in the Page setup dialogue box. In Grid Settings you can set the number you want the report to have and the spacing of rows and columns. The spacing is used to add some space between records or columns.

You can also set the width and height in the Column Size option or the width can be set as default from the margins you selected earlier. The maximum height of each record is control at the Height box.

And, finally, you can also have the Access report the records down before starting a new column using the Column Layout part. When you are done setting up the multi-column report in MS Access 2007, all what’s left is to click OK. Then you can preview the report to check if it looks the way you need it to be. If it appears that you still need to make some adjustments, you should use the page setup to change certain elements of your report.

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Microsoft Office gave us many useful applications and Access is probably the hardest one to master. It is the application that often requires outside training in order to use it effectively. It is not that hard to use Word, Excel or other MS Office applications, but even if you are an experienced computer user, you will still probably need MS Access training. And it is not always enough to take the introductory Access course. Most Access users also consider taking the advanced course mandatory to ensure productive software application, but even such course doesn’t substitute the real experience. This article will introduce you to some useful tips that not all Access users know.

The first tip involves Access database design. You can prevent many database design problems, if you sit and plan your application on paper first, before touching the computer. If you have a large project to design, you shouldn’t do it on the fly. Doing it without proper preparation is just wasting time, because then you may spend hours fixing the problems and mistakes you’ve made, which could be prevented by making a plan.

Another thing to remember is never to work on the production database. Instead, work on a prototype of the real database. This will also help you avoid many problems in case there is a critical error, which is not rare. This way you don’t seriously damage or destroy the entire company’s information. Only after you are finished with the prototype and test it properly, you can put it out for other people to use. You should also understand all of your database fields and relationships, stick to the naming conventions and never allow users to edit fields directly.

During the advanced Access training people learn how to write code like SQL and VBA for Access database. Such skills allow us to create powerful databases as well as to mess a lot of things up. Make sure you document all written code with comments and notes. Don’t place these notes outside the application because these documents will eventually be lost. Always write code thinking of other users and developers, don’t think that they will be able to come to you and ask what it does. If you need inspiration, you can get it from looking at other people’s code. After a while and with getting more experience in writing code, you will be able to code better, which will help you avoid bad surprises.

And the most important rule of all, which you will learn during any Access database training or have discovered it from your own experience, is to keep regular backups. Make sure you backup all the prototypes and the production databases. Make frequent backups and restore them just to check they are in proper working condition.

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And a final piece of advice – today the online technologies give you a really unique chance to choose what you want at the best terms which are available on the market. Strange, but most of the people don’t use this opportunity. In real life it means that you should use all the tools of today to get the info that you need.

Search Google or other search engines. Visit social networks and check the accounts that are relevant to your topic. Go to the niche forums and participate in the online discussion. All this will help you to build up a true vision of this market. Thus, giving you a real chance to make a wise and nicely balanced decision.

And also sign up to the RSS on this blog, because we will do the best to keep updating this blog with new publications about microsoft access database industry.