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How to retrieve the last 4 characters from a mysql database field?
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Getting last 5 char of string with mysql query
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Closed 5 years ago.
this is my data in the database and i'm using mysql
database image
How do I retreive number "4" from the data using sql command?
USE reverse and left
set #myfield = 1234;
select left(reverse(#myfield),1) as result;
result
4
demo here
http://rextester.com/LTBE34983
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Getting a number when it has certain prefix from a block of text in PHP
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Zero-pad digits in string
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I am trying to add the int with strings in PHP but I could get a helpful answer on StackOverflow and other website communities.
I want the code separate the ALPHABETS and NUMBER and then add the value in NUMBER and again JOIN the ALPHABETS AND ADDED NUMBER together.
How I achieve this, Please help.
Example:
$mynumber = 'SBI0001';
$addValue = '1';
It will be 'SBI0002' in PHP.
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SQL select only rows with max value on a column [duplicate]
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I have a problem to show one of duplicate data with last created date. This is is my query :
$sqlpur ="SELECT DISTINCT pn, created_date, id_purchase FROM pur_supp ORDER BY pn, created_date DESC";
This is the result.
This is a data from database.
But, I want to show just one of duplicate data. an example just to show 02N64073 with last created Date.
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How can I prevent SQL injection in PHP?
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How can I select a row in MySQL db where the value of a column contains ' and \ ?
For example, I want to select a column that matches this types of string:
https://www.mayoclinic.org/diseases-conditions/hirschsprung\'s-disease/symptoms-causes/syc-20351556
What can I do to achieve what I want?
This should work, both characters must be escaped into the query:
SELECT * FROM `urls` WHERE text LIKE "%\\\\\'%"
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Query with multiple likes
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Closed 5 years ago.
How can I search in 3 columns with LIKE?
the following code gives an error
$sql .= " AND (Genre, Genre2, Genre3) like '%$s2%'";
full sql;
SELECT * FROM films where Title_ing like '%$s1%' OR Title_de like '%$s1%' AND (Genre like '%$s2%' OR Genre2 '%$s2%' OR Genre3 '%$s2%') AND imdbRating like '$s3%'
You need to use OR
AND (Genre like '%$genre%' OR Genre2 '%$genre%' OR Genre3 '%$genre%');
This question already has answers here:
Calculating total data size of BLOB column in a table
(4 answers)
Closed 8 years ago.
i have a table where i am saving images as blob
now the issue is, how can i get the size of the blob in each tuple.
is there any query to do so?
Try
SELECT OCTET_LENGTH(blob_content) FROM test_blob WHERE id = 1
Use SELECT OCTET_LENGTH(blob_tablename) FROM...