Hive Null & Empty Values Query Guide

1 year ago
Ava Mitchell
1 minute

In Hive, empty values and null values are two different concepts. Empty values usually refer to empty strings or empty collections, while null values indicate missing or unknown values.

To search for null values in Hive, you can use the following statement:

SELECT * FROM table_name WHERE column_name = '';

To search for null values in Hive, you can use the following statement:

SELECT * FROM table_name WHERE column_name IS NULL;

It is important to note that in Hive, empty values and null values are different, so it is necessary to choose the appropriate query conditions based on the specific situation.

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