How to show month in ascending order in PHP/mysql ?

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i want to print a list of users added by date in ascending order, but there is an issue of month order, i am using dd-mm-yy date format

What I have tried:

PHP

$query="SELECT * FROM `transactions` WHERE `dealer_id` = '$dealer_id' ORDER BY `_date` ASC";

Posted 28-Sep-17 7:32am

Member 13435586

Updated 2-Dec-19 20:11pm

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Richard Deeming 28-Sep-17 14:03pm

Simple: don't store dates as strings. Use the DATE type instead.

MySQL :: MySQL 5.7 Reference Manual :: 11.3 Date and Time Types[^]

Member 13435586 28-Sep-17 14:07pm

but i need th date format like this => dd-mm-yyyy, but in MySQL date format is mm/dd/yyyy

Richard Deeming 28-Sep-17 14:10pm

Formatting the date is something you do in the presentation code. The data should be stored using an appropriate type - in this case, the DATE type.

That would immediately solve your problem, because the dates would sort correctly. You then just need to use PHP to format the returned value.

Member 13435586 28-Sep-17 14:11pm

ok thanks..

Member 13435586 28-Sep-17 14:10pm

how can i change date format in mysql??

Richard Deeming 28-Sep-17 14:12pm

You don't. You DO NOT store dates as strings. You store them as dates.

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Patrice T · Answer 1 · 2017-09-28T13:43:00

PHP

$query="SELECT * FROM `transactions` WHERE `dealer_id` = '$dealer_id' ORDER BY `_date` ASC";

Not a solution to your question, but another problem you have.
Never build an SQL query by concatenating strings. Sooner or later, you will do it with user inputs, and this opens door to a vulnerability named "SQL injection", it is dangerous for your database and error prone.
A single quote in a name and your program crash. If a user input a name like "Brian O'Conner" can crash your app, it is an SQL injection vulnerability, and the crash is the least of the problems, a malicious user input and it is promoted to SQL commands with all credentials.
SQL injection - Wikipedia[^]
SQL Injection[^]
SQL Injection Attacks by Example[^]
PHP: SQL Injection - Manual[^]
SQL Injection Prevention Cheat Sheet - OWASP[^]

Member 10502398 · Answer 2 · 2019-12-02T20:10:00

Solution 2

SELECT * FROM `tablenam` WHERE MONTH(updated_date) = MONTH(NOW())

Posted 2-Dec-19 20:10pm

Member 10502398

Comments

Maciej Los 3-Dec-19 2:19am

My vote of 1. Reason: your answer is about where statement, but OP is asking about data sorting.