What is the best way to convert an int or null to boolean value in an SQL query?

Question

What is the best way to convert an int or null to boolean value in an SQL query, such that:

• Any non-null value is TRUE in the results
• Any

Answer 1

The syntax works, but I had to figure out how to place it in my query. If OK, I'd like to share an example on how to fit into an extended query:

select count(*) as count, inventory,
CASE WHEN inventory = 0 THEN 'empty' ELSE 'not empty' END as InventoryStatus
from mytable group by count, inventory