mysql default column to current datetime
安裝的mysql版本 MariaDB,圖簡單直接使用命令install上去的。 ... XXX` ADD COLUMN `createtime` datetime NOT NULL DEFAULT NOW() ... 問題描述: 資料表中有記錄的time欄位(屬性為timestamp)其值為:“0000-00-00 00:00., You cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column. Therefore, what you want to achieve will work in MySQ
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 mysql default column to current datetime 相關參考資料
MySQL 8.0 Reference Manual :: 11.2.5 Automatic ... - MySQL
TIMESTAMP or DATETIME column definitions can specify the current timestamp for both the default and auto-update values, for one but not the other, or for ... https://dev.mysql.com mysql為datetime型別欄位設定預設值default - IT閱讀
安裝的mysql版本 MariaDB,圖簡單直接使用命令install上去的。 ... XXX` ADD COLUMN `createtime` datetime NOT NULL DEFAULT NOW() ... 問題描述: 資料表中有記錄的time欄位(屬性為timestamp)其值為:“0000-00-00 00:00. https://www.itread01.com Can't default date to CURRENT_TIMESTAMP in MySQL 5.5 - Database ...
You cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column... https://dba.stackexchange.com How to set default current datetime in Mysql field - Stack Overflow
Setting CURRENT_TIMESTAMP as default value is only possible if you have MySQL version 5.6.5 or later. Otherwise you can only set a default ... https://stackoverflow.com How do you set a default value for a MySQL Datetime column ...
mysql> create table test (str varchar(32), ts TIMESTAMP DEFAULT ... Consider the basic trigger to set a date field to the current time on insert: https://stackoverflow.com Set NOW() as Default Value for datetime datatype? - Stack Overflow
As of MySQL 5.6.5, you can use the DATETIME type with a dynamic ... I use a trigger as a workaround to set a datetime field to NOW() for new ... https://stackoverflow.com How to set default value of DATE (not DATETIMETIMESTAMP) column ...
Probably you cannot set default value for 'date' data type in mysql. You need to change the type to timestamp or datetime. You may have a look ... https://stackoverflow.com MySQL DATE field with default CURDATE(). NOT DATETIME - Stack Overflow
No, you cannot. The documentation is pretty clear on this: This means, for example, that you cannot set the default for a date column to be the ... https://stackoverflow.com Create a column 'Date' with default value current datetime MYSQL ...
As of MySQL 5.6.5, TIMESTAMP and DATETIME columns can be automatically initializated and updated to the current date and time (that is, ... https://stackoverflow.com |