CODEWITHSUNDEEP
phpmysqlsql
user796443
user796443

Reputation:

How do I unite these mysql queries? Does it make sense to do so?

I'm building general statistics for my DB.

I want to know how to unite so many SELECTS so that I get result in 1 row different columns.

SELECT COUNT(*) AS total_users FROM users;
SELECT COUNT(*) AS total_verified FROM users WHERE verified = 1;
SELECT COUNT(*) AS total_passed_tut FROM users WHERE level = 3;
SELECT COUNT(*) AS total_private FROM users WHERE privacy = 0;
SELECT COUNT(*) AS total_friends_only FROM users WHERE privacy = 2;
SELECT COUNT(*) AS total_public FROM users WHERE privacy = 3;

And does it make sense to do this? Or should I rather do seperate queries and save to an array 1 by 1?

Upvotes: 4

Views: 80

Answers (2)

juergen d
juergen d

Reputation: 204746

You can do it in one query

SELECT COUNT(*) AS total_users,
       sum(verified = 1) as total_verified,
       sum(level = 3) as total_passed_tut,
       sum(privacy = 0) as total_private,
       sum(privacy = 2) as total_friends_only,
       sum(privacy = 3) as total_public
FROM users;

Upvotes: 3

Frantisek
Frantisek

Reputation: 7693

SELECT (SELECT COUNT(*) AS total_users FROM users) as `total_users`,
SELECT (SELECT COUNT(*) AS total_verified FROM users WHERE verified = 1) as `total_verified`,
SELECT (SELECT COUNT(*) AS total_passed_tut FROM users WHERE level = 3) as `total_passed_tut`,
SELECT (SELECT COUNT(*) AS total_private FROM users WHERE privacy = 0) as `total_private`,
SELECT (SELECT COUNT(*) AS total_friends_only FROM users WHERE privacy = 2) as `total_friends_only`,
SELECT (SELECT COUNT(*) AS total_public FROM users WHERE privacy = 3) as `total_public`
FROM dual

Upvotes: 0

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