I have a collection that checks for MAC's and UUID for duplicates. I would like to add multiple MAC's to a collection. Right now this is what i have: select SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client from SMS_R_System where SMS_R_System.MACAddresses = "XX:XX:XX:XX:XX:XX" what would be the proper syntax to add "AND" or "JOIN" multiple MAC's? Thank you.