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Archive for January 13th, 2010

Migrating From Microsoft Access To MySQL

January 13, 2010 By: lilybird Category: Software

Before migrating from Microsoft Access to MySQL, you should first ask yourself, if you really need it. Yes, there might be several benefits in using MySQL for multi-user, high performance, strong security database. That is why if you are building a complex system, you should definitely transfer your data from Access to MySQL. But if Access database is used by only one user and if the record is just copied to a new machine, then it is not really necessary to use MySQL.

If you still need to move data from MS Access to MySQL, there is a standard way to do that. Access allows you to export its tables to different formats. So, applying this feature, you will be able to migrate from Access to MySQL using the Connector/ODBC driver, which is provided by MySQL. In order to do that, select “Export” option when you right-click on the table. The follow several steps and the data will be transferred to MySQL.

The above method can be enough for you, if your database is small and has no complex structure. You should know that index information is not exported with the Access data. After exporting your Access tables, you will need to build indexes manually. MS Access and MySQL also have some differences in data types. For example, in MySQL you will not find Currency data type. Instead, it has a column named Decimal for the same purposes. Another difference is that Access has Unicode by default, when MySQL doesn’t really ties field types to character sets. MySQL lets each text field to be tied to any amount of character sets as well as Unicode. And if you need the resulting MySQL database to support Unicode, you should also specify it manually.

You can also use another approach for migration Access to MySQL. You can use third party program to handle the migration for you. There are many special converter programs that will provide you with easy, fast and effective way of performing the migration from Access to MySQL. And even though it is very easy to handle, such conversion programs provide enough power and capabilities to convert large and complex MS Access database files. The program also provides accurate results, because it performs all needed data transformations, converts all indexes and table relationships, supports all versions of MS Access as well as its attributes, covers multibyte sets of characters and many more. As you can see it is a very useful tool to have in case you need to export Access to MySQL. And if you want to have more control over the export or you don’t have the access to MySQL destination server, such converter program can transfer data to the MYSQL dump file.

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Tips To Avoid Microsoft Access Data Corruption.

January 13, 2010 By: lilybird Category: Software

Microsoft Access is a very powerful database which allows you to store, organize and work with important data. To create Access database you use .mdb files and very often you may see error messages when trying to mount the database. Most of the time, this error would occur due to referential integrities corruption in the database. The database corruption makes the records inaccessible, which can really cause loss of work productivity. That is why, in order to prevent this from happening, it is wise to always have a valid update, which you can use in case of data loss.

Let’s take this situation as an example. Imagine, you are trying to open Access database file, but you suddenly see an error message that says something like you don’t have permissions to use this file. After you get this error message, you are not able to open the database, and all the records you need for your work are not accessible.

The possible reasons for this situation can be the following. Error message may appear due to Access file versions incompatibility. It could also occur due to the corrupt or wrong database path or corruption of relationships or referential integrities.

In order to solve this problem, you can consider doing the following. If the error happened due to the compatibility problem, you can solve it by simply upgrading your Access to the latest version. If the error happened due to the corrupted or wrong file path, you can resolve the issue by providing the correct file path. But these measures will not work if error was caused by database corruption or the corruption of referential integrity. In this case, you will need to use a powerful mdb database repair program, which will repair the file systematically. This database repair systems will completely fix your database and restore your files, using the latest scanning mechanisms and algorithms. These programs are also easy to apply and understand, because they are designed with user-friendly and graphical interface. You also do not require having any prior technical experience to use these Access database repair programs.

Besides repairing your Access database completely, these programs will also restore the damaged database at any location specified by user. Access database repair software supports different Access editions and can be compatible with several Windows operating systems like Windows 2000, 2003, XP and Vista.

Using repairing systems your Access database already has is fine in some cases. But when you database has a major problem like a corruption of a very important file and the backup is not available or not fixing the problem, it is always good to have good Access database repair software at hand. It can save you a lot of time and prevent your work from being delayed.

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