What is the method used by Hive to determine if a field is not null?

2 years ago
Olivia Parker
1 minute

In Hive, you can use IS NOT NULL to determine if a field is not null. Here is a specific explanation:

  1. IS NOT NULL is used to check if the value in a column is not null.
  2. If the value in the column is not null, the condition will return TRUE; otherwise, it will return FALSE.

You can use this condition in the WHERE clause or any other place where you need to check if a field is not null.

For example, if you want to filter out records in a table where the column_name field is not null, you can use the following Hive query statement:

SELECT * FROM table_name WHERE column_name IS NOT NULL;

This will return records where the column_name is not null.

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