# Constituent Elements

| Element                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | Definition                                     |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------- |
| RelationOrJoin (as [\<Table>](https://github.com/pentaho/documentation/blob/main/PDIA/10.2/Install/Multidimensional%20data%20modeling%20in%20Pentaho/Article%20-%20Multidimensional%20Data%20Modeling%20in%20Pentaho/Article%20-%20About%20Multidimensional%20Expression%20Language/Article%20-%20Mondrian%20Schema%20Element%20Reference/Table=GUID-EA9696E7-73AF-4AA5-A4F6-C46EA93B67A2=2=en=.md), [\<View>](https://github.com/pentaho/documentation/blob/main/PDIA/10.2/Install/Multidimensional%20data%20modeling%20in%20Pentaho/Article%20-%20Multidimensional%20Data%20Modeling%20in%20Pentaho/Article%20-%20About%20Multidimensional%20Expression%20Language/Article%20-%20Mondrian%20Schema%20Element%20Reference/View=GUID-8D3751DC-1E9E-43D6-8B55-5568A0B55D61=2=en=.md), [\<Join>](https://github.com/pentaho/documentation/blob/main/PDIA/10.2/Install/Multidimensional%20data%20modeling%20in%20Pentaho/Article%20-%20Multidimensional%20Data%20Modeling%20in%20Pentaho/Article%20-%20About%20Multidimensional%20Expression%20Language/Article%20-%20Mondrian%20Schema%20Element%20Reference/Join=GUID-BA2A1729-8F14-486D-920C-55F37889228F=2=en=.md), or [\<InlineTable>](https://docs.pentaho.com/install/10.2-install/multidimensional-data-modeling-in-pentaho/about-multidimensional-expression-language/mondrian-schema-element-reference/inlinetable)) | There must be two defined; a left, and a right |