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MySQL ORDER BY Date field not in date format?
The following is the syntax to order by date field which is not in date format
select *from yourTableName order by STR_TO_DATE(yourColumnName,'%d/%m/%Y') DESC;
To understand the above syntax, let us create a table. The query to create a table is as follows
mysql> create table orderByDateFormatDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> ArrivalDatetime varchar(100) -> ); Query OK, 0 rows affected (0.73 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('01/10/2012');
Query OK, 1 row affected (0.20 sec)
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('03/11/2010');
Query OK, 1 row affected (0.15 sec)
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('04/09/2018');
Query OK, 1 row affected (0.14 sec)
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('31/01/2019');
Query OK, 1 row affected (0.17 sec)
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('21/04/2017');
Query OK, 1 row affected (0.21 sec)
mysql> insert into orderByDateFormatDemo(ArrivalDatetime) values('23/05/2016');
Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement. The query is as follows −
mysql> select *from orderByDateFormatDemo;
The following is the output
+----+-----------------+ | Id | ArrivalDatetime | +----+-----------------+ | 1 | 01/10/2012 | | 2 | 03/11/2010 | | 3 | 04/09/2018 | | 4 | 31/01/2019 | | 5 | 21/04/2017 | | 6 | 23/05/2016 | +----+-----------------+ 6 rows in set (0.00 sec)
Here is the query to ORDER BY date field which is not in date format
mysql> select *from orderByDateFormatDemo -> order by -> STR_TO_DATE(ArrivalDatetime,'%d/%m/%Y') DESC;
The following is the output
+----+-----------------+ | Id | ArrivalDatetime | +----+-----------------+ | 4 | 31/01/2019 | | 3 | 04/09/2018 | | 5 | 21/04/2017 | | 6 | 23/05/2016 | | 1 | 01/10/2012 | | 2 | 03/11/2010 | +----+-----------------+ 6 rows in set (0.04 sec)
Updated on: 2019-07-30T22:30:25+05:30
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