SELECT (
SELECT COUNT(*)
FROM user_table
) AS tot_user,
(
SELECT COUNT(*)
FROM cat_table
) AS tot_cat,
(
SELECT COUNT(*)
FROM course_table
) AS tot_course
SELECT * FROM table WHERE id = 3 OR id = 4;
SELECT * FROM table WHERE id = 3 OR id = 4;
SELECT * FROM table WHERE id = 3 OR id = 4;
SELECT * FROM table WHERE id = 3 OR id = 4;