How can you determine the number of null values in the `alternate_email` column of an existing Delta table named `customers`?_

Real Exam

SELECT count_if(alternate_email IS NULL) AS missing_alternate_emails FROM customers

65.4%

SELECT count(alternate_email IS NULL) AS missing_alternate_emails FROM customers_

15.7%

SELECT count_when(alternate_email IS NULL) AS missing_alternate_emails FROM customers

6.3%

SELECT count_where(alternate_email IS NULL) AS missing_alternate_emails FROM customers

6.9%

SELECT count_only(alternate_email IS NULL) AS missing_alternate_emails FROM customers

5.7%

Databricks Certified Data Engineer - Associate