{"id":707,"date":"2018-03-26T13:46:30","date_gmt":"2018-03-26T05:46:30","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=707"},"modified":"2018-03-26T13:46:30","modified_gmt":"2018-03-26T05:46:30","slug":"mysql-5-6-%e4%b8%adtimestamp-with-implicit-default-value-is-deprecated%e9%94%99%e8%af%af","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=707","title":{"rendered":"MySQL 5.6 \u4e2dTIMESTAMP with implicit DEFAULT value is deprecated\u9519\u8bef"},"content":{"rendered":"
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\u5b89\u88c5mysql\u7684\u65f6\u5019\u51fa\u73b0TIMESTAMP with implicit DEFAULT value is deprecated. Please use –explicit_defaults_for_timestamp server option (see documentation for more details)\uff0c\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u7684\u65b9\u6cd5\u89e3\u51b3<\/div>\n<\/div>\n<\/div>\n
<\/div>\n
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\u5b89\u88c5MySQL\u65f6\uff0c\u6709warning:<\/p>\n

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[root@localhost mysql]# scripts\/mysql_install_db --user=mysql<\/code><\/div>\n
Installing MySQL system tables...2015-08-13 14:20:09 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).<\/code><\/div>\n
2015-08-13 14:20:09 0 [Note] .\/bin\/mysqld (mysqld 5.6.26) starting as process 1934 ...<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Using mutexes to ref count buffer pool pages<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: The InnoDB memory heap is disabled<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Mutexes and rw_locks use InnoDB's own implementation<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Memory barrier is not used<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Compressed tables use zlib 1.2.3<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Using Linux native AIO<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Not using CPU crc32 instructions<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Initializing buffer pool, size = 128.0M<\/code><\/div>\n
2015-08-13 14:20:09 1934 [Note] InnoDB: Completed initialization of buffer pool<\/code><\/div>\n
2015-08-13 14:20:10 1934 [Note] InnoDB: The first specified data file .\/ibdata1 did not exist: a new database to be created!<\/code><\/div>\n
2015-08-13 14:20:10 1934 [Note] InnoDB: Setting file .\/ibdata1 size to 12 MB<\/code><\/div>\n
2015-08-13 14:20:10 1934 [Note] InnoDB: Database physically writes the file full: wait...<\/code><\/div>\n
2015-08-13 14:20:10 1934 [Note] InnoDB: Setting log file .\/ib_logfile101 size to 48 MB<\/code><\/div>\n
2015-08-13 14:20:11 1934 [Note] InnoDB: Setting log file .\/ib_logfile1 size to 48 MB<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Renaming log file .\/ib_logfile101 to .\/ib_logfile0<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Warning] InnoDB: New log files created, LSN=45781<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Doublewrite buffer not found: creating new<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Doublewrite buffer created<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: 128 rollback segment(s) are active.<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Warning] InnoDB: Creating foreign key constraint system tables.<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Foreign key constraint system tables created<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Creating tablespace and datafile system tables.<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Tablespace and datafile system tables created.<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: Waiting for purge to start<\/code><\/div>\n
2015-08-13 14:20:12 1934 [Note] InnoDB: 5.6.26 started; log sequence number 0<\/code><\/div>\n
2015-08-13 14:20:14 1934 [Note] Binlog end<\/code><\/div>\n
2015-08-13 14:20:14 1934 [Note] InnoDB: FTS optimize thread exiting.<\/code><\/div>\n
2015-08-13 14:20:14 1934 [Note] InnoDB: Starting shutdown...<\/code><\/div>\n
2015-08-13 14:20:16 1934 [Note] InnoDB: Shutdown completed; log sequence number 1625977<\/code><\/div>\n
OK<\/code><\/div>\n
<\/div>\n
Filling help tables...2015-08-13 14:20:16 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. <\/code><\/div>\n
Please use --explicit_defaults_for_timestamp server option (see documentation for more details).<\/code><\/div>\n
2015-08-13 14:20:16 0 [Note] .\/bin\/mysqld (mysqld 5.6.26) starting as process 1957 ...<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Using mutexes to ref count buffer pool pages<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: The InnoDB memory heap is disabled<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Mutexes and rw_locks use InnoDB's own implementation<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Memory barrier is not used<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Compressed tables use zlib 1.2.3<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Using Linux native AIO<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Not using CPU crc32 instructions<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Initializing buffer pool, size = 128.0M<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Completed initialization of buffer pool<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Highest supported file format is Barracuda.<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: 128 rollback segment(s) are active.<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: Waiting for purge to start<\/code><\/div>\n
2015-08-13 14:20:16 1957 [Note] InnoDB: 5.6.26 started; log sequence number 1625977<\/code><\/div>\n
2015-08-13 14:20:17 1957 [Note] Binlog end<\/code><\/div>\n
2015-08-13 14:20:17 1957 [Note] InnoDB: FTS optimize thread exiting.<\/code><\/div>\n
2015-08-13 14:20:17 1957 [Note] InnoDB: Starting shutdown...<\/code><\/div>\n
2015-08-13 14:20:18 1957 [Note] InnoDB: Shutdown completed; log sequence number 1625987<\/code><\/div>\n
OK<\/code><\/div>\n
<\/div>\n
To start mysqld at boot time you have to copy<\/code><\/div>\n
support-files\/mysql.server to the right place for your system<\/code><\/div>\n
<\/div>\n
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !<\/code><\/div>\n
To do so, start the server, then issue the following commands:<\/code><\/div>\n
<\/div>\n
\u00a0<\/code>.\/bin\/mysqladmin -u root password 'new-password'<\/code><\/div>\n
\u00a0<\/code>.\/bin\/mysqladmin -u root -h localhost.localdomain password 'new-password'<\/code><\/div>\n
<\/div>\n
Alternatively you can run:<\/code><\/div>\n
<\/div>\n
\u00a0<\/code>.\/bin\/mysql_secure_installation<\/code><\/div>\n
<\/div>\n
which will also give you the option of removing the test<\/code><\/div>\n
databases and anonymous user created by default. This is<\/code><\/div>\n
strongly recommended for production servers.<\/code><\/div>\n
<\/div>\n
See the manual for more instructions.<\/code><\/div>\n
<\/div>\n
You can start the MySQL daemon with:<\/code><\/div>\n
<\/div>\n
\u00a0<\/code>cd . ; .\/bin\/mysqld_safe &<\/code><\/div>\n
<\/div>\n
You can test the MySQL daemon with mysql-test-run.pl<\/code><\/div>\n
<\/div>\n
\u00a0<\/code>cd mysql-test ; perl mysql-test-run.pl<\/code><\/div>\n
<\/div>\n
Please report any problems at http:\/\/bugs.mysql.com\/<\/a><\/code><\/div>\n
<\/div>\n
The latest information about MySQL is available on the web at<\/code><\/div>\n
<\/div>\n
\u00a0<\/code>http:\/\/www.mysql.com<\/a><\/code><\/div>\n
<\/div>\n
Support MySQL by buying support\/licenses at http:\/\/shop.mysql.com<\/a><\/code><\/div>\n
<\/div>\n
New default config file was created as .\/my.cnf and<\/code><\/div>\n
will be used by default by the server when you start it.<\/code><\/div>\n
You may edit this file to change server settings<\/code><\/div>\n
<\/div>\n
WARNING: Default config file \/etc\/my.cnf exists on the system<\/code><\/div>\n
This file will be read by default by the MySQL server<\/code><\/div>\n
If you do not want to use this, either remove it, or use the<\/code><\/div>\n
--defaults-file argument to mysqld_safe when starting the server<\/code><\/div>\n
<\/div>\n
[root@localhost mysql]#<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

[Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use –explicit_defaults_for_timestamp server option (see documentation for more details).<\/p>\n

\u5176\u539f\u56e0\u662f\u4ece 5.6\u5f00\u59cb\uff0ctimestamp \u7684\u9ed8\u8ba4\u884c\u4e3a\u5df2\u7ecf\u662f deprecated \u4e86\u3002<\/p>\n

\u5728MySQL 5.6.6\u4e4b\u524d\uff0cTIMESTAMP\u7684\u9ed8\u8ba4\u884c\u4e3a\uff1a<\/p>\n

\u2022TIMESTAMP\u5217\u5982\u679c\u6ca1\u6709\u660e\u786e\u58f0\u660eNULL\u5c5e\u6027\uff0c\u9ed8\u8ba4\u4e3aNOT NULL\u3002\uff08\u800c\u5176\u4ed6\u6570\u636e\u7c7b\u578b\uff0c\u5982\u679c\u6ca1\u6709\u663e\u793a\u58f0\u660e\u4e3aNOT NULL\uff0c\u5219\u5141\u8bb8NULL\u503c\u3002\uff09\u8bbe\u7f6eTIMESTAMP\u7684\u5217\u503c\u4e3aNULL\uff0c\u4f1a\u81ea\u52a8\u5b58\u50a8\u4e3a\u5f53\u524dtimestamp\u3002
\n\u2022\u8868\u4e2d\u7684\u7b2c\u4e00\u4e2aTIMESTAMP\u5217\uff0c\u5982\u679c\u6ca1\u6709\u58f0\u660eNULL\u5c5e\u6027\u3001DEFAULT\u6216\u8005 ON UPDATE\uff0c\u4f1a\u81ea\u52a8\u5206\u914d DEFAULT CURRENT_TIMESTAMP\u548cON UPDATE CURRENT_TIMESTAMP \u5c5e\u6027\u3002
\n\u2022\u8868\u4e2d\u7b2c\u4e8c\u4e2aTIMESTAMP\u5217\uff0c\u5982\u679c\u6ca1\u6709\u58f0\u660e\u4e3aNULL\u6216\u8005DEFAULT\u5b50\u53e5\uff0c\u9ed8\u8ba4\u81ea\u52a8\u5206\u914d’0000-00-00 00:00:00\u2032\u3002\u63d2\u5165\u884c\u65f6\u6ca1\u6709\u6307\u660e\u6539\u5217\u7684\u503c\uff0c\u8be5\u5217\u9ed8\u8ba4\u5206\u914d’0000-00-00 00:00:00\u2032\uff0c\u4e14\u6ca1\u6709\u8b66\u544a\u3002<\/p>\n

\u8981\u5173\u95ed\u8b66\u544a\uff0c\u9700\u8981\u52a0\u5165\u4e0b\u9762\u7684\u53c2\u6570\uff1a<\/p>\n

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[mysqld]<\/code><\/div>\n
explicit_defaults_for_timestamp=true<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

\u91cd\u542fMySQL\u540e\u9519\u8bef\u6d88\u5931\uff0c\u8fd9\u65f6TIMESTAMP\u7684\u884c\u4e3a\u5982\u4e0b\uff1a<\/p>\n

\u2022TIMESTAMP\u5982\u679c\u6ca1\u6709\u663e\u793a\u58f0\u660eNOT NULL\uff0c\u662f\u5141\u8bb8NULL\u503c\u7684\uff0c\u53ef\u4ee5\u76f4\u63a5\u8bbe\u7f6e\u6539\u5217\u4e3aNULL\uff0c\u800c\u6ca1\u6709\u9ed8\u8ba4\u586b\u5145\u884c\u4e3a\u3002
\n\u2022TIMESTAMP\u4e0d\u4f1a\u9ed8\u8ba4\u5206\u914dDEFAULT CURRENT_TIMESTAMP \u548c ON UPDATE CURRENT_TIMESTAMP\u5c5e\u6027\u3002
\n\u2022\u58f0\u660e\u4e3aNOT NULL\u4e14\u6ca1\u6709\u9ed8\u8ba4\u5b50\u53e5\u7684TIMESTAMP\u5217\u662f\u6ca1\u6709\u9ed8\u8ba4\u503c\u7684\u3002\u5f80\u6570\u636e\u8868\u4e2d\u63d2\u5165\u5217\uff0c\u53c8\u6ca1\u6709\u7ed9TIMESTAMP\u5217\u8d4b\u503c\u65f6\uff0c\u5982\u679c\u662f\u4e25\u683cSQL\u6a21\u5f0f\uff0c\u4f1a\u629b\u51fa\u4e00 \u4e2a\u9519\u8bef\uff0c\u5982\u679c\u4e25\u683cSQL\u6a21\u5f0f\u6ca1\u6709\u542f\u7528\uff0c\u8be5\u5217\u4f1a\u8d4b\u503c\u4e3a’0000-00-00 00:00:00\u2032\uff0c\u540c\u65f6\u51fa\u73b0\u4e00\u4e2a\u8b66\u544a\u3002\uff08\u8fd9\u548cMySQL\u5904\u7406\u5176\u4ed6\u65f6\u95f4\u7c7b\u578b\u6570\u636e\u4e00\u6837\uff0c\u5982DATETIME\uff09
\n\uff08\u53c2\u89c1\uff1ahttp:\/\/www.jb51.net\/article\/71054.htm<\/a>\uff09<\/p>\n

\u4e5f\u5c31\u662f explicit_defaults_for_timestamp \u5173\u95ed\u4e86 timestamp \u7c7b\u578b\u5b57\u6bb5\u9501\u62e5\u6709\u7684\u4e00\u4e9b\u4f1a\u8ba9\u4eba\u611f\u5230\u5947\u602a\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c\u52a0\u5165\u4e86\u8be5\u53c2\u6570\u4e4b\u540e\uff0c\u5982\u679c\u8fd8\u9700\u8981\u4e3a timestamp\u7c7b\u578b\u7684\u5b57\u6bb5\u6307\u5b9a\u9ed8\u8ba4\u884c\u4e3a\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u663e\u793a\u7684\u5728\u521b\u5efa\u8868\u65f6\u663e\u793a\u7684\u6307\u5b9a\u3002explicit_defaults_for_timestamp \u4e5f\u5c31\u662f\u8fd9\u4e2a\u610f\u601d\uff1a\u663e\u793a\u6307\u5b9a\u9ed8\u8ba4\u503c\u4e3atimestamp\u7c7b\u578b\u7684\u5b57\u6bb5\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u5b89\u88c5mysql\u7684\u65f6\u5019\u51fa\u73b0TIMESTAMP with implicit DEFAULT value is deprecated. Please use –explicit_defaults_for_timestamp server option (see documentation for more details)\uff0c\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u7684\u65b9\u6cd5\u89e3\u51b3 \u5b89\u88c5MySQL\u65f6\uff0c\u6709warning: ? 1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-707","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=707"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/707\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}