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How to select and sum different values according to different condition in mysql and PHP in a single statement. Please look at the picture for understanding the concept clearly. Thanks
The general strategy is like this:
SELECT City,
SUM(IF(MONTH(DateColumn) = 1, AmountColumn, 0)) AS JanuaryTotal,
SUM(IF(MONTH(DateColumn) = 2, AmountColumn, 0)) AS FebruaryTotal,
. . .
SUM(IF(MONTH(DateColumn) = 12, AmountColumn, 0)) AS DecemberTotal
FROM YourTable
WHERE YEAR(DateColumn) = 2015
GROUP BY City
Related
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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
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I want to get a warning when a date is different like:
I have a while and wanted to when it reaches to a different date, it warns me
$hist=mysqli_query($db, "SELECT * from history");
while($his=mysqli_fetch_assoc($hist)){
If(certain_date != last_date){
echo certain_date;
}
}
Certain date and last date is the ones I wanna get
This is simply done like this
$hist=mysqli_query($db, "SELECT * from history");
$last_date = '';
while($his=mysqli_fetch_assoc($hist)){
If($his['ano'] != $last_date){
echo $his['ano'];
$last_date = $his['ano'];
}
}
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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
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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
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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