How does the NATURALLEFTOUTERJOIN function (DAX) work?
The NATURALLEFTOUTERJOIN function (DAX) performs an inner join of a table with another table. The tables are joined on common columns (by name) in the two tables. If the two tables have no common column names, an error is returned.
NATURALLEFTOUTERJOIN Formula Syntax
How do you use the NATURALLEFTOUTERJOIN function?
The NATURALLEFTOUTERJOIN function can be used to get all the data from left table and only matching records from right table.
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Considerations when using the NATURALLEFTOUTERJOIN function
There is no sort order guarantee for the results.
Columns being joined on must have the same data type in both tables.
The columns used in the join condition are only columns with the same data lineage or with the same name and no data lineage corresponding to physical columns of the data model.
Strict comparison semantics are used during join. There is no type coercion; for example, 1 does not equal 1.0.
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Formula examples using the NATURALLEFTOUTERJOIN function