COUNT(*) from multiple tables in MySQL

Question

How do I go about selecting COUNT(*)s from multiple tables in MySQL?

Such as:

SELECT COUNT(*) AS table1Count FROM table1 WHERE someCondition
JOIN?? 
         


        

Answer 1

You can do it by using subqueries, one subquery for each tableCount :

SELECT
  (SELECT COUNT(*) FROM table1 WHERE someCondition) as table1Count, 
  (SELECT COUNT(*) FROM table2 WHERE someCondition) as table2Count,
  (SELECT COUNT(*) FROM table3 WHERE someCondition) as table3Count