IS_MEMBER returns the following values.
|
Return value
|
Description
|
|---|
|
0
|
Current user is not a member of group or role.
|
|
1
|
Current user is a member of group or role.
|
|
NULL
|
Either group or role is not valid.
|
IS_MEMBER determines Windows group membership by examining an access token that is created by Windows. The access token does not reflect changes in group membership that are made after a user connects to an instance of SQL Server.