Get the closest value of a column in MYSQL [closed] - php

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I have a table that have a CP value (numeric), for example, 28030, 28060, 27100 etc. And the user can introduce a number via PHP. I want to, having this number for example, 28050, order in MYSQL my table putting 28060 as the first position.
This is the basic of my table:
SELECT * FROM `tiendas` ORDER BY `CP`

ABS() will work. Here's a query that does the job:
SELECT
CP
FROM tiendas
ORDER BY ABS(CP- 28050) ASC

Related

Get products variation details [closed]

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I will developing e-commerce website but need some help from you.
When I run query "SELECT * FROM products_variations_option WHERE variations_id IN (31,41) ORDER BY product_variations_id ASC" then I am gating this output but I need 1 and second row, Means I want only product_variations_id= 75 because 31 and 41 both value found in only product_variations_id=75
The below query may give you desired output
SELECT variations_id, product_variations_id
FROM (SELECT *
FROM products_variations_option
WHERE variations_id IN (31,41)
ORDER BY product_variations_id ASC
) as t
GROUP BY variations_id

SELECT with a chance of showing [closed]

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So I have this database:
John 4.2
Robert 6
Maria 3.2
What I would want is lets say I refresh a website. And in every refresh I will get a random name from that database based on the chance of showing-> that would mean that Robert would appear more times than the other people(because of his chance)
Any way to do this? I just can't think of anything.
I've create your table with columns name and weight.
The following request return on name, depending on the weight:
SELECT name FROM table ORDER BY RAND()*weight DESC LIMIT 1;

MySQL select from users where there are more matches [closed]

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I would like to know how to choose the users that have the highest number of columns to match the columns of the logged in user.
order by sum matches conditions ex:
SELECT * FROM table where fColumn = 'name' and column2='value2' or colmun3='value3'
ORDER BY (
(column2='value2') + (column3='value3')
) DESC

Selecting data from MySQL in random order [closed]

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I want to extract each row from a table, but in random order. How can I do that? I tried using rand(), but I was not successful.
My database is named "permis54_permis-online-date" and my table is named: "intrebari".
Use ORDER BY RAND() MySQL:
SELECT column FROM intrebari
ORDER BY RAND()
select * from intrebari order by rand();

How to search string in MySQL [closed]

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I want to search number in my MySQL data. String is +310623212542 but the mysql row data is only 0623212542. How can i compare ? Please help i am new to the mysql
Use
In php
<?php
$search_text = substr('+310623212542',3);
mysqli_query("SELECT * FROM tbl WHERE search LIKE '%$search_text%'");
?>
or
in mysql
use SUBSTRING
SELECT * FROM tbl WHERE search = SUBSTRING('+310623212542' FROM 4)
Note: using substring in mysql impact performance issue, when large data present

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