Fujitsu UDS/SQL V2.5 사용자 설명서
Glossary
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system buffer pools
Input/output buffer for database pages (see page). The buffer is part of the
common pool
common pool
(independent DBH) or the DBH work area (linked-in DBH). Its size is
determined by the DBH load parameters 2KB-BUFFER-SIZE, 4KB-BUFFER-
SIZE or 8KB-BUFFER-SIZE.
SIZE or 8KB-BUFFER-SIZE.
system managed pubset
A system managed pubset consists of one or more volume sets which, as with
an SF pubset, comprise a collection of multiple homogeneous disks; here, too,
homogeneity relates to particular physical properties such as disk format and
allocation unit.
an SF pubset, comprise a collection of multiple homogeneous disks; here, too,
homogeneity relates to particular physical properties such as disk format and
allocation unit.
SYSTEM record
See anchor record.
SYSTEM set
Set
whose owner record type is the symbolic record type SYSTEM.
T
table, multi-level
See multi-level table.
table (SQL)
A table in the context of SQL corresponds to a UDS/SQL record type.
table header
Contains general information on a table or table page:
–
–
the table type and the level number of the table page,
–
the number of reserved and current entries in this table page,
–
the chaining reference to other table pages on the same level,
–
the pointer to the associated table page on the next higher level,
–
the pointer to the page containing the last table on the main level (for the
highest-level table only).
highest-level table only).
table page
Page
containing a table or part of a table. If a table which does not extend over
several pages or the highest level of a multi-level table is concerned, "table
page" only refers to the object involved, not the entire page.
page" only refers to the object involved, not the entire page.