关于Navicat设置主键自增长和系统默认时间 一、设置某字段为当前时间,修改日期类型为timestamp并允许空,如下: CREATETABLE`test` (`aaaa`varchar(50)NOTNULL,`createday`timestampNULLDEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIMESTAMP) ENGINE=InnoDBDEFAULTCHARSET=utf8; 如果是在navicat下操作的话,设置字段的类型为tim...
4 自动更新时间的字段和创建时间字段唯一不同，就是下面要勾选“根据当前时间戳更新”，默认值还是一样的 5 自动更新时间sql语句如下：--添加updatetimeALTER TABLE `orders`ADD COLUMN `updatetime` timestamp NULLDEFAULTCURRENT_TIMESTAMPON UPDATECURRENT_TIMESTAMP;--修改updatetimeALTER TABLE `orders`MODIFY COLU...
Incorrect SQL generated when enabling "On Update Current_timestamp" in Table Designer. Minor bug fixes and improvements. To upgrade, please visit our Customer Center. Feb 28 2020 Navicat Premium (Windows) version 12.1.27Bug-fixes: Query wrongly returned null results in some cases. Unable to up...
Unable to set "On Update Current_Timestamp" setting in some cases for MySQL version 5.6.5 or above. Unable to add tables to Report's Query Wizard and Query Designer when the table name contained dot. Error occurred when logging in Navicat Cloud if profile path contained Unicode. To upgrade...
`full_name` varchar(255) DEFAULT NULL, `create_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP, `operator_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;...
3.你明确地设定TIMESTAMP列为NULL. 4.除第一个以外的TIMESTAMP列也可以设置到当前的日期和时间,只要将列设为NULL,或NOW()。 所以把日期类型 选择成timestamp 允许空就可以了 CREATETABLEtest ( unamevarchar(50)NOTNULL,updatetimetimestampNULLDEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIMESTAMP) ENGINE=InnoDBDEFAUL...
选择成timestamp 允许空就可以了 CREATE TABLE test (uname varchar(50) NOT NULL,updatetime timestamp NULL DEFAULTCURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP ) ENGINE=InnoDB DEFAULT CHARSET=utf8;如果要在navicat下操作的话，将字段设置为timestamp，然后默认值写上CURRENT_TIMESTAMP即可 ...
`update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`), KEY `user_id` (`user_id`) USING BTREE ) ENGINE=InnoDB AUTO_INCREMENT=32255 DEFAULT CHARSET=utf8; 其中create_time这个字段出现这样的错误:“[Err] 1067 - Invalid default value for 'create...
`updated_at` timestampNOTNULLDEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIMESTAMPCOMMENT'更新时间', `created_at` timestampNOTNULLDEFAULT'0000-00-00 00:00:00'COMMENT'加入时间', PRIMARYKEY (`id`), UNIQUEKEY`uidx` (`user_id`,`group_id`) ...
Mysql Navicat 数据转存sql 文件导入新表 创建表或更新字段报 Invalid default value for ‘update_time‘,`update_time`timestamp(0)DEFAULTNULLCOMMENT'系统更新时间',更改为`update_time`timestamp(0)DEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIMESTAMP(0)COMMENT'系