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Adding a new column with the current time as a default value in MySQL?
For this, you can use the DEFAULT CURRENT_TIMESTAMP clause in MySQL. Following is the syntax −
CREATE TABLE yourTableName ( yourColumnName1 dataType1, yourColumnName timestamp DEFAULT CURRENT_TIMESTAMP );
Let us first create a table −
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> DueDate timestamp default current_timestamp -> ); Query OK, 0 rows affected (0.86 sec)
Now you can insert some records in the table using insert command −
mysql> insert into DemoTable values(); Query OK, 1 row affected (0.16 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
+----+---------------------+ | Id | DueDate | +----+---------------------+ | 1 | 2019-06-08 21:35:58 | +----+---------------------+ 1 row in set (0.00 sec)
Updated on 30-Jul-2019 22:30:26
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