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cluster and pooled tables

Former Member
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Hi,

cluster and pooled tables can u tell me in SD and MM ,what r cluster tables and pooled tables where we will use these tables?

Hi,

cluster and pooled tables can u tell me in SD and MM ,what r cluster tables and pooled tables where we will use these tables?

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sreelatha_gullapalli
Active Participant
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hi

Pooled table 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.

Cluster table 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.

verify this link

http://sapabaplive.blogspot.com/2007/09/faqs-on-abap-interview-tips-and.html

reward points if helpfull'

thanks & regards

sreelatha gullapalli

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Former Member
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Pooled Table : Pooled tables are logical tables that must be assigned to a table pool when they are defined. Pooled tables are used to store control data. Several pooled tables can be cominied in a table pool. The data of these pooled tables are then sorted in a common table in the database.

Cluster Table : Cluster tables are logical tables that must be assigned to a table cluster when they are defined. Cluster tables can be used to strore control data. They can also be used to store temporary data or texts, such as documentation.

Eg . BSEG

The below link is to .... how to create the cluster & pooled table

http://help.sap.com/saphelp_46c/helpdata/en/81/415d363640933fe10000009b38f839/frameset.htm

TO SEARCH CLUSTER AND POOLED TABLE

se11-> utilities->Databaseutility-> or you can reach there by typing tcode se14

choose the radio button pools/clusters place the cursor in the obj name and

press F4 a small window will popup

There will be a search option in that window

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Former Member
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Example of Pooled tables.

FINP, T001E, T001F, T001I, T001J, T001R,T001S

Example of Cluster tables.

BSEG, BSED, BSEC, BSES

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Former Member
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hi

A transparent table in the dictionary has a one to one relationship with a table in the database. Its structure in R/3 Data Dictionary corresponds to a single database table. For each transparent table definition in the dictionary, there is one associated table in the database. The database table has the same name, the same number of fields, and the fields have the same names as the R/3 table definition. When looking at the definition of an R/3 transparent table, it might seem like you are looking at the database table itself.

Transparent tables are much more common than pooled or cluster tables. They are used to hold application data. Application data is the master data or transaction data used by an application. An example of master data is the table of vendors ( called vendor master data )or table of customers ( called customer master data ). An example of transaction data is the orders placed by the customers, or the orders sent to the vendors.

Transparent tables are probably the only type of table you will need to ever create. Pooled and cluster tables are not usually used to hold application data but instead hold system data, such as system configuration information, or historical and statistical data.

Both pooled and cluster tables have many to one relationships with database tables. Both can appear as many tables in R/3, but they are stored as a single table in the database. The database table has a different name, different number of fields, and different field names than the R/3 table. The difference between the two types lies in the characteristics of the data they hold, and will be explained in the following sections.