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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

CUME_DIST

Aggregate syntax:

CUME_DIST (expr[,expr...]) WITHIN GROUP 
        (ORDER BY expr [ASC | DESC][NULLS {FIRST | LAST}]
                [, expr [ASC | DESC] [NULLS {FIRST | LAST}]...])

Analytic syntax:

CUME_DIST (  ) OVER (analytic_clause)

Computes the relative position of a row among all rows of the aggregation group for a hypothetical row identified by the arguments to the function and the ORDER BY specification. The value returned is > 0 and < = 1. All arguments to this function must evaluate to a constant expression. Expressions in the main function must match the positions of those in the ORDER BY clause.

Parameters

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

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Publisher Resources

ISBN: 0596003366Errata Page