I am having some problem with my MySQL query and I need some guidance here. I am creating a search and I want to know how many item was found in my search with my query. But the problem is, my query returning count for each rows separately, It's not returning total count. Here what I have right now.
My query
SELECT
COUNT(t.id) AS total
FROM
trouble t
LEFT JOIN district d ON d.id = t.district
LEFT JOIN country c ON c.id = t.country
LEFT JOIN multi_category mc ON mc.t_id = t.id
LEFT JOIN category ct ON ct.id = mc.ct_id
LEFT JOIN state s ON s.id = t.state
WHERE
t.name LIKE '%keyword%' OR
t.title LIKE '%keyword%' OR
t.tags LIKE '%keyword%' OR
ct.category LIKE '%keyword%' OR
c.country LIKE '%keyword%' OR
s.state LIKE '%keyword%' OR
d.district LIKE '%keyword%'
GROUP BY
t.id
I have 14 rows in my database with the keyword I am searching with and this query returning 14 rows, here is a snap.
But it is counting each rows id's individually. I don't want that. What I want is, I want the total row count which is 14 and I want it in a single row. Can you please help me achieve this?
Thanks in advance.
First get the unique number of IDs and then return the total number of IDs.
SELECT count(*) AS Total
FROM
(
SELECT DISTINCT t.id
FROM trouble t
LEFT JOIN district d ON d.id = t.district
LEFT JOIN country c ON c.id = t.country
LEFT JOIN multi_category mc ON mc.t_id = t.id
LEFT JOIN category ct ON ct.id = mc.ct_id
LEFT JOIN state s ON s.id = t.state
WHERE
t.name LIKE '%keyword%' OR
t.title LIKE '%keyword%' OR
t.tags LIKE '%keyword%' OR
ct.category LIKE '%keyword%' OR
c.country LIKE '%keyword%' OR
s.state LIKE '%keyword%' OR
d.district LIKE '%keyword%'
GROUP BY t.id
) resultTable
Use exists
instead of LEFT JOIN
s. The joins just multiply rows when there are multiple matches:
SELECT COUNT(*)
FROM trouble t
WHERE t.name LIKE '%keyword%' OR
t.title LIKE '%keyword%' OR
t.tags LIKE '%keyword%' OR
EXISTS (SELECT 1
FROM district d
WHERE d.id = t.district AND d.district LIKE '%keyword%'
) OR
EXISTS (SELECT 1
FROM country c
WHERE c.id = t.country AND c.country LIKE '%keyword%'
) OR
EXISTS (SELECT 1
FROM state s
WHERE s.id = t.state AND s.state LIKE '%keyword%'
) OR
EXISTS (SELECT 1
FROM multi_category mc JOIN
category ct
ON ct.id = mc.ct_id
WHERE mc.t_id = t.id AND
(ct.category LIKE '%keyword%' OR
c.country LIKE '%keyword%'
)
);
By eliminating the creation of multiple rows, this should also be faster.
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