الأخوة الأعزاء : تحية طيبة وبعد .

* Index Organized Table
* Cluster Table

راجياً منكم الرد ولكم مني جزيل الشكر

اخى العزيز :
السلام عليكم

index-organized table 
A table whose rows are stored in an index structure, sorted by the table's primary key.

اما عن الكلستر فلا اعرف بالظبط معنى cluster table و لاكن هناك ال cluster , ال cluster key

cluster 
A database structure that attempts to store rows with a common value 
on the same blocks with each other. Rows from one or more tables can 
belong to a cluster and will be grouped based on value rather than 
table membership. 

cluster key 
The column or columns used to group rows in a cluster. The term is 
sometimes used for a particular value around which rows are 
clustered.