KNOWLEDGE BASE

Nulls Show When Data Blending


Published: 18 Dec 2014
Last Modified Date: 02 Mar 2017

Issue

When blending fields between data sources, the view might display Nulls instead of data. 

Environment

Tableau Desktop

Resolution

Ensure that the fields are equivalent in value, i.e. verify that the field length, field case, and field values are the same. 

For example, if a field contains a state name in uppercase letters in database 1, and all lowercase letters in database 2, the fields will need be converted into the same case. 
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