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Changes for page 13 Structure Mapping

Last modified by Artur on 2025/09/10 11:19
From version 8.1
edited by Helena
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To version 5.1
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14 -**Contents**
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25 -*
26 -** [[13.1 Introduction>>doc:null||anchor="H13.1Introduction"]]
27 -** [[13.2 1-1 structure maps>>doc:null||anchor="H13.21-1structuremaps"]]
28 -** [[13.3 N-n structure maps>>doc:null||anchor="H13.3N-nstructuremaps"]]
29 -** [[13.4 Ambiguous mapping rules>>doc:null||anchor="H13.4Ambiguousmappingrules"]]
30 -** [[13.5 Representation maps>>doc:null||anchor="H13.5Representationmaps"]]
31 -** [[13.6 Regular expression and substring rules>>doc:null||anchor="H13.6Regularexpressionandsubstringrules"]]
32 -*** [[13.6.1 Regular expressions>>doc:null||anchor="H13.6.1Regularexpressions"]]
33 -*** [[13.6.2 Substrings>>doc:null||anchor="H13.6.2Substrings"]]
34 -** [[13.7 Mapping non-SDMX time formats to SDMX formats>>doc:null||anchor="H13.7Mappingnon-SDMXtimeformatstoSDMXformats"]]
35 -*** [[13.7.1 Pattern based dates>>doc:null||anchor="H13.7.1Patternbaseddates"]]
36 -*** [[13.7.2 Numerical based datetime>>doc:null||anchor="H13.7.2Numericalbaseddatetime"]]
37 -*** [[13.7.3 Mapping more complex time inputs>>doc:null||anchor="H13.7.3Mappingmorecomplextimeinputs"]]
38 -** [[13.8 Using TIME_PERIOD in mapping rules>>doc:null||anchor="H13.8UsingTIME_PERIODinmappingrules"]]
39 -** [[13.9 Time span mapping rules using validity periods>>doc:null||anchor="H13.9Timespanmappingrulesusingvalidityperiods"]]
40 -** [[13.10 Mapping examples>>doc:null||anchor="H13.10Mappingexamples"]]
41 -*** [[13.10.1 Many to one mapping (N3513 -1)>>doc:null||anchor="H13.10.1A0Manytoonemapping28N3513-129"]]
42 -*** [[13.10.2 Mapping other data types to Code Id>>doc:null||anchor="H13.10.2MappingotherdatatypestoCodeId"]]
43 -*** [[13.10.3 Observation Attributes for Time Period>>doc:null||anchor="H13.10.3ObservationAttributesforTimePeriod"]]
44 -*** [[13.10.4 Time mapping>>doc:null||anchor="H13.10.4Timemapping"]]
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49 -
50 50  == 13.1 Introduction ==
51 51  
52 52  The purpose of [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] structure mapping is to transform [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] from one dimensionality to another. In practice, this means that the input and output [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] conform to different Data Structure Definition.
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63 63  
64 64  * Transforming received data into a common internal structure;
65 65  * Transforming reported data into the data collector's preferred structure;
66 -* Transforming unidimensional [[datasets>>doc:sdmx:Glossary.Data set.WebHome]](% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|Unidimensional datasets are those with a single 'indicator' or 'series code' dimension." data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|Unidimensional datasets are those with a single 'indicator' or 'series code' dimension." data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_1" %)^^[[1>>doc:null||anchor="x_footnote_1"]]^^(%%) to multi-dimensional; and
21 +* Transforming unidimensional [[datasets>>doc:sdmx:Glossary.Data set.WebHome]]{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and
67 67  * Transforming internal [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] with a complex structure to a simpler structure with fewer [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] suitable for dissemination.
68 68  
69 69  == 13.2 1-1 structure maps ==
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270 270  
271 271  The input 'G' matches on the last rule which is used as a catch-all or default in this example.
272 272  
273 -=== 13.6.2 Substrings ===
228 +=== 13. Substrings ===
274 274  
275 275  Substrings provide an alternative to regular expressions where the required section of an input value can be described using the number of the starting character, and the length of the substring in characters. The first character is at position 1.
276 276  
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323 323  
324 324  Date and [[time formats>>doc:sdmx:Glossary.Time format.WebHome]] are specified by date and time pattern strings based on Java's Simple Date Format. Within date and time pattern strings, unquoted letters from 'A' to 'Z' and from 'a' to 'z' are interpreted as pattern letters representing the [[components>>doc:sdmx:Glossary.Component.WebHome]] of a date or time string. Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote. All other characters are not interpreted; they're simply copied into the output string during formatting or matched against the input string during parsing.
325 325  
326 -Due to the fact that dates may differ per locale, an optional property, defining the locale of the pattern, is provided. This would assist processing of source dates, according to the given locale(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html" data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html" data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_2" %)^^[[2>>doc:null||anchor="x_footnote_2"]]^^(%%). An indicative list of examples is presented in the following table:
281 +Due to the fact that dates may differ per locale, an optional property, defining the locale of the pattern, is provided. This would assist processing of source dates, according to the given locale{{footnote}} A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html{{/footnote}}. An indicative list of examples is presented in the following table:
327 327  
328 328  (% style="width:604.294px" %)
329 329  |(% style="width:172px" %)English (en)|(% style="width:216px" %)Australia (AU)|(% style="width:213px" %)en-AU
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366 366  (% style="width:850.294px" %)
367 367  |(% style="width:125px" %)**Letter**|(% style="width:385px" %)**Date or Time Component**|(% style="width:180px" %)**Presentation**|(% style="width:157px" %)**Examples**
368 368  |(% style="width:125px" %)G|(% style="width:385px" %)Era designator|(% style="width:180px" %)Text|(% style="width:157px" %)AD
369 -|(% style="width:125px" %)yy|(% style="width:385px" %)Year short (upper case is Year of Week(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years" data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years" data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_3" %)^^[[3>>doc:null||anchor="x_footnote_3"]]^^(%%))|(% style="width:180px" %)Year|(% style="width:157px" %)96
324 +|(% style="width:125px" %)yy|(% style="width:385px" %)Year short (upper case is Year of Week{{footnote}}yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years{{/footnote}})|(% style="width:180px" %)Year|(% style="width:157px" %)96
370 370  |(% style="width:125px" %)yyyy|(% style="width:385px" %)Year Full (upper case is Year of Week)|(% style="width:180px" %)Year|(% style="width:157px" %)1996
371 371  |(% style="width:125px" %)MM|(% style="width:385px" %)Month number in year starting with 1|(% style="width:180px" %)Month|(% style="width:157px" %)07
372 372  |(% style="width:125px" %)MMM|(% style="width:385px" %)Month name short|(% style="width:180px" %)Month|(% style="width:157px" %)Jul
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392 392  
393 393  The model is illustrated below:
394 394  
395 -(% contenteditable="false" tabindex="-1" %)[[image:1750074822764-573.png||data-widget="image"]]
350 +[[image:1750074822764-573.png]]
396 396  
397 397  **Figure 24 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD dimension with the additional information on the component map to describe the time format?**
398 398  
399 -(% contenteditable="false" tabindex="-1" %)[[image:1750074865924-797.png||data-widget="image"]]
354 +[[image:1750074865924-797.png]]
400 400  
401 401  (% class="wikigeneratedid" id="HFigure25showinganinputdateformat2CwhoseoutputfrequencyisderivedfromtheoutputvalueoftheFREQDimension" %)
402 402  **Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension**
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426 426  
427 427  The model is illustrated below:
428 428  
429 -(% contenteditable="false" tabindex="-1" %)[[image:1750074994887-415.png||data-widget="image"]]
384 +[[image:1750074994887-415.png]]
430 430  
431 431  **Figure 26 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD Dimension with the additional information on the component map to describe the numerical datetime system in use **
432 432  
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576 576  |(% style="width:202px" %)Input INDICATOR|(% style="width:197px" %)Valid From/ Valid To|(% style="width:227px" %) Output OBS_CONF
577 577  |(% style="width:202px" %)XULADS|(% style="width:197px" %) 2008/2010|(% style="width:227px" %)С
578 578  
579 -=== 13.10.4 Time mapping ===
534 +=== 13.10.4  Time mapping ===
580 580  
581 581  This use case is to create a [[time period>>doc:sdmx:Glossary.Time period.WebHome]] from an input that does not respect [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Time Formats.
582 582  
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612 612  
613 613  ----
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625 -1. [[^>>doc:null||anchor="x_footnote_ref_1" id="x_footnote_1" class="footnoteBackRef"]] Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.
626 -1. [[^>>doc:null||anchor="x_footnote_ref_2" id="x_footnote_2" class="footnoteBackRef"]] A list of commonly used locales can be found in the Java supported locales: https~://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html//
627 -1. [[^>>doc:null||anchor="x_footnote_ref_3" id="x_footnote_3" class="footnoteBackRef"]] yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years
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