table pools , pooled tables , table clusters
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What is a table pool?
What are pooled tables?
What is a table cluster?
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A table pool (or pool) is used to combine several logical tables in the
ABAP/4 Dictionary. The definition of a pool consists of at least two keys
Fields and a long argument field (VARDATA).
These are logical tables which must be assigned to a table pool when they
are defined. Pooled tables can be used to store control data (such as
Screen sequences or program parameters).
A table cluster combines several logical tables in the ABAP/4 Dictionary.
Several logical rows from different cluster tables are brought together
in a single physical record. The records from the cluster tables
assigned to a cluster are thus stored in a single common table in the
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