amozon.com has adopted which one for its dw/bi?

amozon.com has recently (i.e. 2008) adopted which one below for its DW/BI solution?
1. Oracle;
2. MS SQL Server;
3. Teradata

所有跟帖： 

• i guess 2~~~ -撅着挺好- ♂ (0 bytes) () 01/10/2010 postreply 15:54:16

• what's new? here... -HappyNow?!- ♂ (446 bytes) () 01/10/2010 postreply 16:54:34

• thx for sharing, Teradata is the winner!! -撅着挺好- ♂ (0 bytes) () 01/10/2010 postreply 17:04:24