Objective

Given a table product_tags containing columns id (unique identifier for each product) and tags (a comma-separated string of tags associated with the product), write an SQL query to count the occurrences of each tag across all products. The result should display each tag along with its corresponding count, ordered first by the count in descending order and then alphabetically by the tag.

Additional information

• The tags column contains multiple tags separated by commas.
• Ensure that the result includes all unique tags from the tags column.
• The output should include the tag and the number of times it appears across all products.
• Tags are case-sensitive (i.e., 'Tag' and 'tag' would be considered different tags).