Where does we use Cluster & Pooled Tables

Pooled tables can be used to store control data (e.g. screen sequences, program parameters or temporary data). Several pooled tables can be combined to form a table pool. The table pool corresponds to a physical table on the database in which all the records of the allocated pooled tables are stored.

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Cluster tables contain continuous text, for example, documentation. Several cluster tables can be combined to form a table cluster. Several logical lines of different tables are combined to form a physical record in this table type. This permits object-by-object storage or object-by-object access. In order to combine tables in clusters, at least parts of the keys must agree. Several cluster tables are stored in one corresponding table on the database.

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Raja T

Hi Bhaskar ,

Cluster Table : As the name suggests the data in the table are stored in clusters , cluster tables store a very large volume of data .

Pooled Tables : Pooled tables are a group of table which are collectively accessed using a common name, usually table where the volume of data and access to the data is less are comnibned together in a pool.

There is a major diffrenece between cluster tables and pool tables , in case of cluster tables the tables in the cluster must have a relationship between them but it is not necessary in case of pooled tables.

Please see the help for the same

http://help.sap.com/saphelp_erp2005vp/helpdata/en/cf/21f0d1446011d189700000e8322d00/frameset.htm

Regadrs

Arun

check this table DD02L here u can see the cluster & pooled table

to see pooled table specify pool in tabclass for cluster use cluster in tabclass.