mysql date default current_timestamp
From the MySQL 5.5 manual: You cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE., In MySQL, you cannot use a function or an expression as the default value for any type of column, except for the TIMESTAMP data type column, for which you can specify the CURRENT_TIMESTAMP as the default.,ALTER TABLE users MODIFY registerDate datetime DEFAULT NOW() ALTER TABLE users MODIFY registerDate datetime DEFAULT CURRENT_TIMESTAMP;. , ,With CURRENT_TIMESTAMP , the default is the current timestamp. CREATE TABLE t1 ( ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP, dt DATETIME ... ,Use of DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP is specific to TIMESTAMP and DATETIME . The DEFAULT clause also can be used to specify a constant (nonautomatic) default value (for example, DEFAULT 0 or DEFAULT '2000-01-01 00:00:00', 查資料了一番後,得知datetime型別只支援Mysql5.6.5以上版本。 修改測試語句--- 將 datetime 換成 TIMESTAMP 即可: ALTER TABLE `XXX`., modification_time DATETIME DEFAULT CURRENT_TIMESTAMP ON ... If you want to prevent MySQL from updating the timestamp value on ..., Insert時自動存入當前Datetime的方法. ... 趕快來查一下MYSQL文件: "The DEFAULT value clause in a data type specification indicates a default value for a column. With one ... 這時把預設值改為CURRENT_TIMESTAMP ！
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 mysql date default current_timestamp 相關參考資料
Can't default date to CURRENT_TIMESTAMP in MySQL 5.5 ...
From the MySQL 5.5 manual: You cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. https://dba.stackexchange.com How do you set a default value for a MySQL Datetime column ...
In MySQL, you cannot use a function or an expression as the default value for any type of column, except for the TIMESTAMP data type column, for which you can specify the CURRENT_TIMESTAMP as the def... https://stackoverflow.com mysql - 設置NOW() 作為datetime數據類型的默認值？
ALTER TABLE users MODIFY registerDate datetime DEFAULT NOW() ALTER TABLE users MODIFY registerDate datetime DEFAULT CURRENT_TIMESTAMP;. https://hant-kb.kutu66.com MySQL 5.6 Reference Manual :: 11.2.6 Automatic ... - MySQL
https://dev.mysql.com MySQL 5.7 Reference Manual :: 11.2.6 Automatic ... - MySQL
With CURRENT_TIMESTAMP , the default is the current timestamp. CREATE TABLE t1 ( ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP, dt DATETIME ... https://dev.mysql.com MySQL 8.0 Reference Manual :: 11.2.5 Automatic ... - MySQL
Use of DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP is specific to TIMESTAMP and DATETIME . The DEFAULT clause also can be used to specify a constant (nonautomatic) default value (for exa... https://dev.mysql.com mysql為datetime型別欄位設定預設值default - IT閱讀
查資料了一番後,得知datetime型別只支援Mysql5.6.5以上版本。 修改測試語句--- 將 datetime 換成 TIMESTAMP 即可: ALTER TABLE `XXX`. https://www.itread01.com Set NOW() as Default Value for datetime datatype? - Stack ...
modification_time DATETIME DEFAULT CURRENT_TIMESTAMP ON ... If you want to prevent MySQL from updating the timestamp value on ... https://stackoverflow.com [PHP]MYSQL自動加入Datetime方法| Shinyo - 點部落
Insert時自動存入當前Datetime的方法. ... 趕快來查一下MYSQL文件: "The DEFAULT value clause in a data type specification indicates a default value for a column. With one ... 這時把預設值改為CURRENT_TIMESTAMP ！ https://dotblogs.com.tw |