mysql default string
Data type specifications can have explicit or implicit default values. A DEFAULT value ... For string types other than ENUM , the default value is the empty string. ,Try something like: > ALTER TABLE `table_name` ADD COLUMN `column_name` varchar(32) NOT NULL DEFAULT 'bobloblaw'
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 mysql default string 相關參考資料
11.5 Data Type Default Values - MySQL :: Developer Zone
Data type specifications can have explicit or implicit default values. Handling of Explicit ... For string types other than ENUM , the default value is the empty string. https://dev.mysql.com 11.6 Data Type Default Values - MySQL :: Developer Zone
Data type specifications can have explicit or implicit default values. A DEFAULT value ... For string types other than ENUM , the default value is the empty string. https://dev.mysql.com Can I add a column in MySQL which has string default value ...
Try something like: > ALTER TABLE `table_name` ADD COLUMN `column_name` varchar(32) NOT NULL DEFAULT 'bobloblaw' https://www.quora.com default a column with empty string - Stack Overflow
default a column with empty string · sql mysql default-constraint. Is there a way, via a SQL statement, to ensure a column's default value is an ... https://stackoverflow.com Default values for varchar and int mysql data types - Stack ...
- Do I must choose as defined: '' for varchar types when I want an empty string? 3.- Do I must put an as defined: 0 default value for autoincrement int types? enter ... https://stackoverflow.com mysql - String not assuming empty default after upgrade ...
Turns out strict mode was enabled. disabled strict mode by changing the line sql-mode="STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO ... https://stackoverflow.com NULL defaults to empty string in mysql? - Stack Overflow
From the docs: If you are not running in strict SQL mode, any column not explicitly given a value is set to its default (explicit or implicit) value. https://stackoverflow.com Set default value if empty string is passed - Stack Overflow
A better way would be to create a trigger. Read more about the triggers on Mysql documentation. Similar answer for more details can be found ... https://stackoverflow.com [MYSQL] 設定字串欄位的預設值@新精讚
ALTER TABLE `hwList` CHANGE `DT1` `DT1` DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00';. 此操作字串欄位不能用mysqladmin 2版來 ... http://n.sfs.tw |