Adding new Column with current time in SQL

Question

Im trying to add a new column to my SQL table i want the data type to be TIME and the default value to be CURRENT_TIME. This is my query.

ALTER TABLE tuesday_records ADD cur_time TIME DEFAULT CURRENT_TIME

And this is the error message i get.

Error
SQL query:


ALTER TABLE tuesday_records ADD cur_time TIME DEFAULT CURRENT_TIME
MySQL said: Documentation

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CURRENT_TIME' at line 1

Answer 1

您可以使用生成的列执行所需的操作：

Row1:Field1 Field2 Field3 Field4
Row2:Field1 Field2 Field3 Field4

也就是说，添加一个时间戳列，然后提取时间。

Here是db <>小提琴。

尽管这回答了您的问题，但是我不确定这是否是解决您整体问题的最佳方法。