Series Key - Revision history

Vmurrell at 13:00, 13 November 2025

2025-11-13T13:00:38Z

Vmurrell at 07:12, 11 September 2023

2023-09-11T07:12:00Z

Glenn at 07:38, 16 September 2021

2021-09-16T07:38:58Z

Glenn: Created page with "Category:Concepts Reference A Series Key is the cross product of values of Dimensions uniquely identifying a series within a dataset. =Overview= Consider the following [..."

2021-09-09T20:12:29Z

Created page with "Category:Concepts Reference A Series Key is the cross product of values of Dimensions uniquely identifying a series within a dataset. =Overview= Consider the following [..."

New page

[[Category:Concepts Reference]]
A Series Key is the cross product of values of Dimensions uniquely identifying a series within a dataset.

=Overview=
Consider the following [[Data Structure Definition]]:
{| class="wikitable"
|-
! Position !! Component Type !! Component ID !! Description
|-
| 1 || Dimension || INDICATOR || Indicator
|-
| 2 || Dimension || REF_AREA || Reference Area
|-
| 3 || Dimension || FREQUENCY || Data Frequency
|-
| n/a || Time Dimension || TIME_PERIOD || Observation Time
|-
| n/a || Attribute || UNIT_MULT || Unit Multiplier e.g. tens, thousands, millions
|-
| n/a || Attribute || Observation Status || Observation Status e.g. Estimated, Final
|-
| n/a || Primary Measure || Observation Value || The observation value
|}
In SDMX, Series Keys are generally written by concatenating the Dimension values with dots (.) in the order specified in the DSD.

For the DSD above, the Series Key is constructed as follows:

'''<INDICATOR>.<REF_AREA>.<FREQUENCY>'''

Examples
ATMCO2.GRC.A
ATMCO2.GRC.M
TBSINDC.MDG.A
TBSINDC.GBR.M

Attributes do not form part of the Series Key because they have no role in uniquely identifying series or observations.

In some implementations, Series Keys use a colon (:) separator:
Q:S:L:A:TO1:A:5J:A:5A:U:5R:N
Q:S:L:A:TO1:A:5J:A:5A:U:5C:N
Q:S:L:A:TO1:A:5J:A:5A:U:1N:N
Q:S:L:A:TO1:A:5J:A:5A:U:3C:N
Q:S:L:A:TO1:A:5J:A:5A:U:1C:N

=Series Keys with time value=
A Series Key that also includes a time value uniquely identifies an observation.
2015 2016 2017 2018 2019 2020
ATMCO2.GRC.A 278 290 298 304 312 209
TBSINDC.MDG.A 631 678 645 655 662 669

In the above example ATMCO2.GRC.A.2015 identifies the 2015 time period with observation value 278.

← Older revision		Revision as of 13:00, 13 November 2025
Line 1:		Line 1:
−	~~[[Category:Concepts Reference]]~~
	[[Category:How_To]]		[[Category:How_To]]
	A Series Key is a string expression consisting of a '.' or ':' separated list of Dimension values uniquely identifying a single series within a dataset.<br>		A Series Key is a string expression consisting of a '.' or ':' separated list of Dimension values uniquely identifying a single series within a dataset.<br>

@@ Line 1: / Line 1: @@
 [[Category:Concepts Reference]]
 A Series Key is a string expression consisting of a '.' or ':' separated list of Dimension values uniquely identifying a single series within a dataset.<br>
 Example