Answer / uma mb

These are three different kinds of table types in SAP.

The first most common type known to all is the 'Transparent
Table' which is a logical definition (in teh ABAP data
dictionary) of a physical table in the database.

Several tables logically defined in ABAP data dictionary can
be combined in a physical table (pool or cluster).

When functionally dependent data spread in many different
tables are kept in one database table, it comes to be known
as a cluster table. The key fields of these cluster tables
form the cluster key.

Pool table is just the opposite where tables are kept
together but they are not functionally dependent - rather
say all small master tables kept together as a pool would
form a pool table.

The true benefits of a cluster / pool table is data is
stored ina compressed form, so less memory space and less
network load.

There are some minus points also:

No native SQL can be used, no views, no joins, no scondary
indices, no GROUP BY, ORDER BY can be used. Table appends
not possible.

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Hi to all abap gurus iam new to abap and my querry is as follows . and i feel so happy if u give exact anwers ? Querry1: i have one page( named "page1" )in my script with three windows(logo,adress,main windows) my requirement is to display some dynamic data in the script that is list of orders of the customer whn u give the customer number in selction-screen .then we can go for main window only to dispaly dynamic data ? or is there any other option ? then what should we give as apage number in the next page attribute in the header information. suppose if i dont give "page1" in the next page attribute as anext page what will happen ? i mean that dynamic data will be displayed or not ? Querry2: one one more querry incase if we have two pages in my layout .in page1 (3 windows as said above ) and page2 ( only logo and address window ) and no main window in page2. now if we give "page2" as next page in the next page attribute of page1 then that dynamic data will be displayed or not ?

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Explain Commit and Roll back?

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