XI/PI Tables LIST

ABAP
ABAP schema Database Transaction Codes
SE11
SE16

SXMSPMAST XI Messages - Master
SXMSPHIST XI Messages - Master History table
SXMSPEMAS Integration Engine: Enhanced Message Queue (Master)
SXMSPFADDRESS Addresses Master
SXMSPVERS Integration Engine: Message Version
SXMSPERROR XML Message Broker: Message Queue (Incorrect Entries)
SXMSCLUP Cluster - Compressed Message Payload Property
SXMSCLUR Cluster - Compressed Message Payload Resource (attachments)

想了解更多的XI相关信息表查看如下连接

http://www.cnblogs.com/byfhd/archive/2009/02/10/1387630.html