Mysql method to automatically obtain time and date

一个新手
Release: 2017-09-30 10:38:44
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Implementation method:


1. Set the field type toTIMESTAMP

2. Set the default value toCURRENT_TIMESTAMP

##Example application:


1. MySQL script implementation use case

##--Add CreateTime to set the default timeCURRENT_TIMESTAMP

ALTER TABLE `table_name` ADD COLUMN `CreateTime` datetime NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间' ;
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--Modify CreateTime to set the default time

CURRENT_TIMESTAMP

ALTER TABLE `table_name`MODIFY COLUMN `CreateTime` datetime NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间' ;
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--Add UpdateTime to set the default timeCURRENT_TIMESTAMP Set the update time toON UPDATE CURRENT_TIMESTAMP
##

ALTER TABLE `table_name` ADD COLUMN `UpdateTime` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '创建时间' ;
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--Modify UpdateTime to set the default time

CURRENT_TIMESTAMP Set the update time toON UPDATE CURRENT_TIMESTAMP

ALTER TABLE `table_name` MODIFY COLUMN `UpdateTime` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '创建时间' ;
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2. MySQL tool settings

##Summary:

1. MySQL automatic management, Maintain time consistency with the database;


2. Simple and efficient, no application development support is required, MySQL automatically completes it;

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