You can use date_format() to convert varchar to date. The syntax is as follows −
SELECT DATE_FORMAT(STR_TO_DATE(yourColumnName, 'yourFormatSpecifier'), 'yourDateFormatSpecifier') as anyVariableName from yourTableName;
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table VarcharToDate -> ( -> Id int NOT NULL AUTO_INCREMENT, -> Created_Time varchar(100), -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (1.10 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into VarcharToDate(Created_Time) values('12/1/2016'); Query OK, 1 row affected (0.14 sec) mysql> insert into VarcharToDate(Created_Time) values('14/3/2017'); Query OK, 1 row affected (0.18 sec) mysql> insert into VarcharToDate(Created_Time) values('15/3/2018'); Query OK, 1 row affected (0.21 sec) mysql> insert into VarcharToDate(Created_Time) values('19/5/2011'); Query OK, 1 row affected (0.18 sec) mysql> insert into VarcharToDate(Created_Time) values('19/8/2019'); Query OK, 1 row affected (0.15 sec) mysql> insert into VarcharToDate(Created_Time) values('21/11/2020'); Query OK, 1 row affected (0.23 sec)
Display all records from the table using select statement. The query is as follows −
mysql> select *from VarcharToDate; +----+--------------+ | Id | Created_Time | +----+--------------+ | 1 | 12/1/2016 | | 2 | 14/3/2017 | | 3 | 15/3/2018 | | 4 | 19/5/2011 | | 5 | 19/8/2019 | | 6 | 21/11/2020 | +----+--------------+ 6 rows in set (0.00 sec)
Here is the query to convert varchar to date. First, you need to use str_to_date() function to convert into date. After that use date_format() to give the actual date −
mysql> select date_format(str_to_date(Created_Time, '%d/%m/%Y'), '%Y-%m-%d') as Date from VarcharToDate;
The following is the output −
+------------+ | Date | +------------+ | 2016-01-12 | | 2017-03-14 | | 2018-03-15 | | 2011-05-19 | | 2019-08-19 | | 2020-11-21 | +------------+ 6 rows in set (0.00 sec)