Compare Date String with MySQL Datetime Field

You can compare DATE string with string from DATETIME field with the help of DATE() function in MySQL.The syntax is as follows −

select *from yourTableName where DATE(yourColumnName) = ’anyDateString’;

To understand the above syntax, let us create a table and set some datetime values in the table. The query to create a table −

mysql> create table DateTimeDemo
   −> (
   −> ArrivalTime datetime
   −> );
Query OK, 0 rows affected (0.61 sec)

Let us insert some records in the table with the help of insert command. The following is the query to insert records −

mysql> insert into DateTimeDemo values(now());
Query OK, 1 row affected (0.11 sec)

mysql> insert into DateTimeDemo values(date_add(now(),interval 2 year));
Query OK, 1 row affected (0.47 sec)

mysql> insert into DateTimeDemo values(date_add(now(),interval 1 year));
Query OK, 1 row affected (0.19 sec)

mysql> insert into DateTimeDemo values(date_add(now(),interval 4 year));
Query OK, 1 row affected (0.13 sec)

mysql> insert into DateTimeDemo values(date_add(now(),interval -2 year));
Query OK, 1 row affected (0.17 sec)

mysql> insert into DateTimeDemo values(date_add(now(),interval -1 year));
Query OK, 1 row affected (0.17 sec)

Display all records with the help of select statement. The query to display all records from the table −

mysql> select *from DateTimeDemo;

The following is the output −

+---------------------+
| ArrivalTime         |
+---------------------+
| 2018-12-06 10:12:45 |
| 2020-12-06 10:13:10 |
| 2019-12-06 10:13:21 |
| 2022-12-06 10:13:27 |
| 2016-12-06 10:13:42 |
| 2017-12-06 10:13:50 |
+---------------------+
6 rows in set (0.00 sec)

Now implement the syntax we discussed above for comparing string with date time field. The query is as follows −

mysql> select *from DateTimeDemo where date(ArrivalTime) = '2022-12-06';

The following is the output −

+---------------------+
| ArrivalTime         |
+---------------------+
| 2022-12-06 10:13:27 |
+---------------------+
1 row in set (0.14 sec)