For this, concatenate both the date and time using CONCAT() function. Let us first create a table −
mysql> create table DemoTable -> ( -> ShippingDate date, -> ShippingTime time, -> ShippingDatetime datetime -> ); Query OK, 0 rows affected (0.50 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(ShippingDate,ShippingTime) values('2019-01-10', '10:40:20'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(ShippingDate,ShippingTime) values('2019-06-14', '04:00:10'); Query OK, 1 row affected (0.14 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
+--------------+--------------+------------------+ | ShippingDate | ShippingTime | ShippingDatetime | +--------------+--------------+------------------+ | 2019-01-10 | 10:40:20 | NULL | | 2019-06-14 | 04:00:10 | NULL | +--------------+--------------+------------------+ 2 rows in set (0.00 sec)
Here is the query to concatenate date and time from separate columns into a single column in MySQL −
mysql> update DemoTable set ShippingDatetime=concat(ShippingDate,' ',ShippingTime); Query OK, 2 rows affected (0.11 sec) Rows matched: 2 Changed: 2 Warnings: 0
Let us check table records once again −
mysql> select *from DemoTable;
Output
+--------------+--------------+---------------------+ | ShippingDate | ShippingTime | ShippingDatetime | +--------------+--------------+---------------------+ | 2019-01-10 | 10:40:20 | 2019-01-10 10:40:20 | | 2019-06-14 | 04:00:10 | 2019-06-14 04:00:10 | +--------------+--------------+---------------------+ 2 rows in set (0.00 sec)