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Oracle® OLAP Expression Syntax Reference
Release 11.2

E23381-01
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2 OLAP Functions

The OLAP functions extend the syntax of the SQL analytic functions. This syntax is familiar to SQL developers and DBAs, so you can adopt it more easily than proprietary OLAP languages and APIs. Using the OLAP functions, you can create all standard calculated measures, including rank, share, prior and future periods, period-to-date, parallel period, moving aggregates, and cumulative aggregates.

This chapter describes the OLAP functions. It contains these topics:

OLAP Functions in Alphabetical Order


AVERAGE_RANK
AVG
COUNT
DENSE_RANK
HIER_ANCESTOR
HIER_CHILD_COUNT
HIER_DEPTH
HIER_LEVEL
HIER_ORDER
HIER_PARENT
HIER_TOP
LAG
LAG_VARIANCE
LAG_VARIANCE_PERCENT
LEAD
LEAD_VARIANCE
LEAD_VARIANCE_PERCENT
MAX
MIN
OLAP_DML_EXPRESSION
RANK
ROW_NUMBER
SHARE
SUM

OLAP Functions By Category

The OLAP functions are grouped into these categories:

OLAP DML Functions


OLAP_DML_EXPRESSION

Share Functions


SHARE

Window Functions


AVG
COUNT
MAX
MIN
SUM