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Oracle in a Nutshell
book

Oracle in a Nutshell

by Rick Greenwald, David C. Kreines
December 2002
Intermediate to advanced content levelIntermediate to advanced
928 pages
85h 29m
English
O'Reilly Media, Inc.
Content preview from Oracle in a Nutshell

Parameters

PARTITION

Specifies that the query result set should be partitioned into one or more groups based on one or more expressions (expr).

ORDER BY

Specifes how data is to be ordered within a partition.

position

Specifies that the partition should be ordered according to the expression in this relative position in the expression list.

c_alias

Specifies that the partition should be ordered according to the column identified by this alias.

ROWS

Specifies that a window is defined in terms of physical rows.

RANGE

Specifies that a window is defined in terms of a logical offset.

BETWEEN

Specifies that a starting and ending point for a window will be defined.

UNBOUNDED PRECEDING

Specifies that the window ends at the last row of the query.

UNBOUNDED FOLLOWING

Specifies that the window starts at the first row of the query.

CURRENT ROW

Specifies that the window begins at the current row or value, depending on whether ROWS or RANGE was specified.

value_expr

Resolves to a number representing a physical offset if ROWS is specified or to a number representing a logical offset if RANGE is specified.

Common keywords and clauses: ASC, DESC, NULLS FIRST, NULLS LAST.

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Publisher Resources

ISBN: 0596003366Errata Page