When we want to compare two snowflake columns and determine how many columns are distinct:
select count(2) from sessions1 where start_date1 != end_date1;
If some start or end dates are null, they are not counted. To avoid this problem, we have to utilise the “INTERSECT” operator:
‘select count(2) from sessions1 where not exists(select start_date1 from sessions1 intersect select end_date1 from sessions1);
Now, our count is “null aware” and we will get the result we require.
This blog helps you handle the null columns while comparing the Snowflake columns. I hope this information is adequate for managing the null columns.
Snowflake Related Articles
If you have any queries, let us know by commenting below.
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Kalla Saikumar is a technology expert and is currently working as a content associate at MindMajix. Write articles on multiple platforms such as ServiceNow, Business Analysis, Performance Testing, Mulesoft, Oracle Exadata, Azure, and other courses. And you can join him on LinkedIn.
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