How do I count columns of a table

Question

For example :

tbl_ifo

id | name  | age | gender 
----------------------------
1  | John  |  15 |  Male
2  | Maria |  18 |  Female
3  | Steph |  19 |  Female         


        

Answer 1

I have a more general answer; but I believe it is useful for counting the columns for all tables in a DB:

SELECT table_name, count(*)
FROM information_schema.columns
GROUP BY table_name;