What prevents auto concatenation between two tables in Qlik Sense?

In Qlik Sense, the ability to manage how tables are concatenated is fundamental for data modeling. The NOCONCATENATE keyword is specifically designed to prevent auto concatenation between two tables. When you apply the NOCONCATENATE keyword in your load script, it instructs Qlik Sense not to combine the tables into a single table, even if they have fields with the same name and data type.

This is particularly useful in scenarios where you want to maintain separate tables for analysis purposes, even when their structures might suggest that they should be combined. For instance, if you are loading sales data from different regions and you want to keep them as distinct tables for reporting, using NOCONCATENATE ensures that Qlik Sense respects your intention to keep the data separate.

The other options contribute differently to the data loading process. Utilizing the CONCATENATE function explicitly combines tables, while the KEEP keyword maintains two separate tables but establishes a link between them. An INNER JOIN merges tables based on matching field values, creating a new table that contains only the rows with corresponding values in both original tables. Each of these has its own specific application in data modeling, but the NOCONCATENATE keyword is the precise tool to ensure