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Oracle® Database Reference
11g Release 2 (11.2)

E40402-14
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V$TYPE_SIZE

V$TYPE_SIZE displays the sizes of various database components for use in estimating data block capacity.

Column Datatype Description
COMPONENT VARCHAR2(8) Component name, such as segment or buffer header
TYPE VARCHAR2(8) Component type
DESCRIPTION VARCHAR2(32) Description of the component
TYPE_SIZE NUMBER Size of the component