Category: Transform / Advanced
This action creates a table with all possible combinations (i.e. Cartesian product) of rows in two tables.
Cross Merge can be helpful in a number of cases:
|Merge table||Select the table to merge with the current dataset.|
|Columns||Select whether to merge all columns in the second dataset, or just selected columns. Options: All columns or
Selected columns (choose which columns to include in the merge).
The reference to the second table will appear as a dotted line connecting this action to the second dataset in the application window.
This action can produce extremely large tables, so make sure that you’re not cross-merging large tables. To estimate the number of rows in the resulting table, multiply the number of rows in both source datasets.
EasyMorph can handle tables with up to 536 million records only.
Objective: Create a custom calendar with quarters in years 2016-2017.
Merge table: "Quarters"
(The resulting dataset will contain 8 rows. Table "Years" 2 rows x Table "Quarters" 4 rows.)