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The only way anyone can connect to SQL Server is via a login. As discussed in 1, this doesn t necessarily mean that every user has to have a specific login within SQL Server itself. With Windows authentication, if a user belongs to a specific Windows group, just by belonging to that group, providing that group is contained within SQL Server, the account will have access to SQL Server. When a database is created, initially only the database owner has any rights to complete any task on that database, whether that be to add a table, insert any data, or view any data. This was the case when we first created our ApressFinancial database in 3. It is only when the database owner grants permissions to other users that they gain extra access to complete tasks. It is common practice to create a Windows group and place Windows user accounts into that group. This is how we wish to work with our ApressFinancial system, and so we will create some Windows groups for it. We will group logins depending on which department we are dealing with and what we want to allow each group to do. We will allow some groups to add new financial products, other groups to add customers, and, finally, a group set up for batch processes to add interest and financial transactions. We will create a few of these groups so that later in the book we can see security in action.
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In 1, I mentioned that you should log in as an administrator account to install SQL Server. This would mean that you are in the BUILTIN/Administrators group, which is a group defined for the local computer that contains Windows users accounts with administrator rights. We can therefore already connect to SQL Server with this login, which includes VMcGlynn. AJMason could not log in, though. However, by adding this account to a group we will be creating, and then adding that group to SQL Server, we will see how they both can.
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Note The process we are about to go through would be the same if we were adding a single user.
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Try It Out: Creating a Group
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1. Navigate to your Control Panel, then select Administrative Tools Computer Management. 2. This brings up a screen that shows different aspects of your computer management. We are interested in selecting Local Users and Groups Groups. When you do so, you will see that there are already several groups within your computer, as shown in Figure 4-1, as well as a large number of groups already defined for the use of SQL Server. These groups differ from groups that we will be defining for accessing the data.
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Figure 4-1. List of groups on the computer 3. AJMason is a product controller and can add new corporate financial products. Right-click Groups and select New Group. This will bring up the New Group screen, as shown in Figure 4-2, where we can add our grouping for our product controllers. Apress_Product_Controllers is the group we ll use in this chapter.
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Figure 4-2. Adding the first group for our application 4. By clicking Add, we can then add all the Windows user accounts that we wish to be part of this group. We can either type AJMason or click Advanced, which brings up a selection dialog box. Clicking the Check Names button adds the user to the group. If AJMason was on your company network, you would have to prefix the name with the domain name. For example, if you had a network domain called Apress and AJMason was on that domain (as opposed to your local computer and therefore your local domain as is the case for our example), then you would type Apress\AJMason. Figure 4-3 shows AJMason is on the XP-PRO local domain.
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