Beginning Microsoft SQL Server 2008 ... - S3 Tech Training

IS_MEMBER
The IS_MEMBER function returns whether the current user is a member of the specified Windows NT
group/SQL Server role. The syntax is as follows:
IS_MEMBER ({‘’ | ‘’})
The group parameter specifies the name of the NT group and must be in the form domain\group. The
role parameter specifies the name of the SQL Server role. The role can be a database fixed role or a userdefined
role but cannot be a server role.
This function will return a 1 if the current user is a member of the specified group or role, a 0 if the
current user is not a member of the specified group or role, and NULL if the specified group or role is
invalid.
IS_SRVROLEMEMBER
The IS_SRVROLEMEMBER function returns whether a user is a member of the specified server role. The
syntax is as follows:
IS_SRVROLEMEMBER (‘’ [,’’])
The optional login parameter is the name of the login account to check — the default is the current
user. The role parameter specifies the server role and must be one of the following possible values:
❑ sysadmin
❑ dbcreator
❑ diskadmin
❑ processadmin
❑ serveradmin
❑ setupadmin
❑ securityadmin
This function returns a 1 if the specified login account is a member of the specified role, a 0 if the login is
not a member of the role, and a NULL if the role or login is invalid.
SUSER_ID
The SUSER_ID function returns the specified user’s login ID number. The syntax is as follows:
SUSER_ID([‘’])
Apendix A: System Functions
The login parameter is the specified user’s login ID name. If no value for login is provided, the default
of the current user will be used instead.
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