To the best of our knowledge, one of the popular Office programs provided by Microsoft is Microsoft Access. Mostly we use this program if we have to store some data. In the common computers with database systems the data are stored in flat files. But here all the data are stored in Microsoft Access tables. This table has columns or fields or attributes. Each of these attributes has a data type which defines the type of accepted data.

Let us look at an example. If you store a price, you need a numeric data type. For text it is better to use a memo data type, which is suitable to store some long descriptions or notes. There is such notion here as a primary key field, which is perhaps the most important field of a Microsoft Access table. This field is the identifying field of the table. It is better to use auto number here. This auto number becomes higher each time when you add a new record. It is not allowed to change this number.

As a rule for this primary key field you should choose the identifying field. When this field becomes a primary key, it is not allowed to locate any duplicates there. Moreover, it only accepts unique values. To make it easy to identify a primary key, a small key symbol will appear next to this field.

Beyond any doubt you have to pay serious attention to the fact that if you want to store some dates you may use Date/Time type. Using this data type you may set an input mask to help to enter the date in the proper format. It is well-known that Microsoft Access 2007 has an attachment field, which is useful to store related documents to the record. As far as the issue is concerned, in Access you can even store images, Excel or Word documents.

Please note, that the attachment field should be used very carefully. Too many attachments can ruin your database. In some cases it would be simpler to make a link to the documents. If you make a link between primary and foreign keys you may make a kind of relationship in which tables can be related together. As a matter of fact there a lot of different available relationships in Microsoft Access.

All created screen forms are normally based on tables. The data which is entered into a form is saved into a table and the displayed data is loaded from a table. Microsoft Access tables are one of the most important components in database system. That is why these tables should be designed correctly. If it is so than you wouldn’t have any problems in future.

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Microsoft Access 2007 enables us to perform many tasks and one of them is creating multi-table queries. These queries can help you understand the information you have entered and stored in the related tables of your database. When you run a multi-table query, the related data stored in different tables can be joined together to make queries and produce useful and logical results. You can also use these multi-table queries for creating reports in MS Access database.

If you want to run a multi-table query, you should first choose the Show Table option. You can run a new query from that dialogue box. If you are already in the query design window, you should select Design and then Show Table. Now you can select a table, which is needed for your query and select Add. Then you can repeat this action in order to add other required tables. While you are selecting tables, Access will show you these tables with the relevant links between them.

After you have selected all the necessary tables, you can drag all the required fields to the Field cell in the query design grid. Repeat this action until you include all the relevant fields you need from all the tables. There is also an option to select the fields from the list in the Field cells. If you decide to use this method, then keep in mind that the name of the field always comes before the name of the table. And you can also decrease the amount of fields shown in the dropdown menu; you can start with selecting the relevant table first. Then only the fields from those tables will appear in the list.

You can also select or de-select the fields appearing in the report by identifying the sort order and sort criteria. This information you collect from different database tables is called a dynaset. This dynaset can be used to create a report and it might be the easiest way to create a multi-table report, because the query has already been organized and all of the needed data is grouped together.

Microsoft Access provides us wizards for creating different object easily and quickly and there is also a graphical Report Wizard, which helps us build reports. You can reach the report wizard by selecting the query or table you wish to use as the basis for the report and then click Create and Report Wizard. Using Report Wizard tool you can build single or multi-table reports, which is a very useful function of your Access database.

These are only some of the useful tasks Access 2007 can help you perform and, therefore, save a lot of time for you to concentrate on other things.

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