SqlNotificationInfo
AlreadyChanged = -2
Alter = 5
Delete = 3
Drop = 4
Error = 7
Expired = 12
Insert = 1
Invalid = 9
Isolation = 11
Merge = 16
Options = 10
PreviousFire = 14
Query = 8
Resource = 13
Restart = 6
TemplateLimit = 15
Truncate = 0
Unknown = -1
Update = 2