Upsizing to SQL Server
Microsoft seem to be pushing both Access and FoxPro users in the direction
of using SQL Server as their back end data store. Access users are
finding that the development tools are being downplayed in the newest
versions as Microsoft make Access easier to use for the end user on
the desktop. Visual FoxPro users know that we've got to migrate our
databases to a new platform sometime in the next decade. Typical users of
both databases are being tempted by Microsoft's free offer of SQL Server
Express and these pages give a brief overview of what can be done.
Our own internal office administration tools are a mixture of FoxPro and
Access databases which have grown over the years. We'll have a background
project running here all year to see how easy it is to upsize our
accounts, enquiry, marketing and bug-tracking databases to SQL Express.
Introduction
The job of upsizing a FoxPro or Access database to SQL Server is made
easier if the database exists before you start the process. Creating a
database is an easy job in the SQL Server Management console if you accept
the default suggestions. These examples are taken from Microsoft SQL
Server Management Studio Express. This provides a graphical interface to
the management console which is very much easier to use than the command
line interface in the earlier versions of SQL Server.
Creating a new database
Start by making sure that your SQL Server software is running. Open the
SQL Server Management Console and select Registered Servers from the View
menu.
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If you see the Stopped icon
against the name of the server then right-click on the server and
select Start from the shortcut menu.
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Stopped
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You'll be asked whether you are
sure that you want to start the service and then you'll see a dialog
"Attempting to start the service..." with a progress bar which may run
for about a minute. Once the service is running you'll see the running
icon against its name and you can close the Registered Services window.
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Running
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You can close the Registered Servers window when you have the server
running. Select Object Explorer from the View menu to see details of
the databases available on this server.
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Click the Connect icon and
connect the Object Explorer to the server you started in the previous
step.
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Connect
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A new installation of SQL Server holds nothing but a set of system
databases for its own internal use. We have to create a new database to
hold our upsized data.
Right click on the Databases entry and select New Database...
from the menu. This will open a dialog asking for properties of the new
database. You can leave most of these at their default settings for now.
These might not be the most appropriate or effective values for your
particular database but the database will run with these defaults and you
can tune them later. The only property that does need to be entered is
the database name.
Press the OK button and the wizard will create a new database as two
files. I chose "upsize_sample" as the name for the new database so the
data will be held in upsize_sample.mdf and the log information in
upsize_sample_log.ldf.
By default, these will both be in a folder such as C:\Program
Files\Microsoft SQL Server\MSSQL\MSSQL\DATA. This option is typically
not visible in the New Database dialog but you can scroll sideways on the
Database Files grid and alter these paths if necessary.
Now that the database exists, the next stage in the preparation is to
create an
ODBC
connection to the database.
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