How can I use MySQL to select only non-NULL values?

In MySQL, you can select only non-NULL values from a column by using the WHERE clause with the IS NOT NULL condition. This ensures that the query retrieves rows where the specified column contains valid (non-NULL) data.

Key Points:

1. IS NOT NULL Condition: Filters out rows where the column value is NULL.
2. Applicable in Any Query: You can use it in SELECT, UPDATE, or DELETE statements.

Example Explanation Without Code:

• To get rows where a specific column is not NULL, apply a filter that checks for non-NULL values.
• Combine this condition with other filters or sorting as needed.

For instance, if you are querying a table with a column for email addresses, you would retrieve rows only where the email address column is not empty (non-NULL). This ensures the results include only meaningful data.