{"id":856,"date":"2017-08-15T15:09:26","date_gmt":"2017-08-15T07:09:26","guid":{"rendered":"http:\/\/www.5x44.cn\/?p=856"},"modified":"2017-08-15T15:09:26","modified_gmt":"2017-08-15T07:09:26","slug":"mysql%e4%b8%ad%e6%81%a2%e5%a4%8d%e5%92%8c%e5%a4%8d%e5%88%b6%e7%9a%84%e9%9c%80%e8%a6%81%ef%bc%8c%e5%af%b9innodb%e9%94%81%e6%9c%ba%e5%88%b6%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=856","title":{"rendered":"mysql\u4e2d\u6062\u590d\u548c\u590d\u5236\u7684\u9700\u8981\uff0c\u5bf9InnoDB\u9501\u673a\u5236\u7684\u5f71\u54cd"},"content":{"rendered":"<p>MySQL\u901a\u8fc7BINLOG\u8bb0\u5f55\u6267\u884c\u6210\u529f\u7684INSERT\\UPDATE\\DELETE\u7b49\u66f4\u65b0\u6570\u636e\u7684SQL\u8bed\u53e5\uff0c\u5e76\u7531\u6b64\u5b9e\u73b0MYSQL\u6570\u636e\u5e93\u7684\u6062\u590d\u548c\u4e3b\u4ece\u590d\u5236\uff0cMYSQL\u7684\u6062\u590d\u673a\u5236\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n<ul>\n<li>\u4e00\u662fMYSQL\u7684\u6062\u590d\u662fSQL\u8bed\u53e5\u7ea7\u7684\uff0c\u4e5f\u5c31\u662f\u91cd\u65b0\u6267\u884cBINLOG\u4e2d\u7684SQL\u8bed\u540d\u3002\u8fd9\u4e0eORACLE\u4e0d\u540c\uff0cORACLE\u662f\u57fa\u4e8e\u6570\u636e\u5e93\u6587\u4ef6\u5757\u7684\u3002<\/li>\n<li>\u4e8c\u662fMYSQL\u7684BINLOG\u662f\u6309\u7167\u4e8b\u52a1\u63d0\u4ea4\u7684\u5148\u540e\u987a\u5e8f\u8bb0\u5f55\u7684\uff0c\u6062\u590d\u4e5f\u662f\u6309\u8fd9\u4e2a\u987a\u5e8f\u8fdb\u884c\u7684\u3002\u8fd9\u70b9\u4e5f\u4e0eORACLE\u4e0d\u540c\uff0cORACLE\u662f\u6309\u7167\u7cfb\u7edf\u66f4\u65b0\u53f7\uff08System Change Number\uff0cSCN\uff09\u6765\u6062\u590d\u6570\u636e\u7684\uff0c\u6bcf\u4e2a\u4e8b\u52a1\u5f00\u59cb\u65f6\uff0cORACLE\u90fd\u4f1a\u5206\u914d\u4e00\u4e2a\u5168\u5c40\u552f\u4e00\u7684SCN\uff0cSCN\u7684\u987a\u5e8f\u4e0e\u4e8b\u52a1\u5f00\u59cb\u7684\u65f6\u95f4\u987a\u5e8f\u662f\u4e00\u81f4\u7684\u3002<\/li>\n<\/ul>\n<p>\u4ece\u4e0a\u9762\u4e24\u6761\u53ef\u77e5\uff0cMYSQL\u7684\u6062\u590d\u673a\u5236\u5b9e\u9645\u4e0a\u662f\u8981\u6c42<strong>\u4e8b\u52a1\u8981\u4e32\u884c\u5316<\/strong>\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u5bf9\u4e8e<br \/>\n<code><br \/>\ninsert into target_tab<br \/>\nselect ... from source_tab where ...<br \/>\n<\/code><br \/>\n\u548c<br \/>\n<code><br \/>\ncreate table new_tab<br \/>\nselect ... from source_tab where ...<br \/>\n<\/code><br \/>\n\u8fd9\u79cdSQL\u8bed\u53e5\uff0c\u53ea\u662f\u7b80\u5355\u5730\u8bfbsource_tab\u8868\u7684\u6570\u636e\uff0c\u76f8\u5f53\u4e8e\u6267\u884c\u4e86\u4e00\u4e2a\u666e\u901a\u7684select\u8bed\u53e5\uff0c\u7528\u4e00\u81f4\u6027\u8bfb\u5c31\u53ef\u4ee5\u4e86\u3002ORACLE\u6b63\u662f\u8fd9\u4e48\u505a\u7684\uff0c\u5b83\u901a\u8fc7MVCC\u6280\u672f\u5b9e\u73b0\u7684\u591a\u7248\u672c\u6570\u636e\u6765\u5b9e\u73b0\u4e00\u81f3\u6027\u8bfb\uff0c\u4e0d\u9700\u8981\u7ed9source_tab\u52a0\u4efb\u4f55\u9501\u3002\u4f46mysql\u7684<strong>InnoDB\u5374\u5bf9source_tab\u52a0\u4e86\u5171\u4eab\u9501<\/strong>\uff0c\u5e76\u6ca1\u6709\u4f7f\u7528MVCC\u4e00\u81f4\u6027\u8bfb\u3002\u8fd9\u662f\u4e3a\u4e86\u4fdd\u8bc1\u6062\u590d\u548c\u590d\u5236\u7684\u6b63\u786e\u6027\u3002<\/p>\n<p>\u5047\u8bbe\u8fd9\u6837\u4e00\u79cd\u60c5\u51b5\uff0csession1\u548csession2\u90fd\u5f00\u542f\u4e86\u4e00\u4e2a\u4e8b\u52a1\uff1a<\/p>\n<ol>\n<li>\u00a0innodb_locks_unsafe_for_binlog\u53d8\u91cf\u8bbe\u7f6e\u4e3a1\uff0c\u7531\u4e8e\u4e0d\u80fd\u52a8\u6001\u8bbe\u7f6e\uff0c\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u4fee\u6539\u3002\u8fd9\u4e2a\u9009\u9879\u9ed8\u8ba4\u503c\u662f0\uff0c\u610f\u4e3a\u201c\u5f00\u542fgap lock\u201d\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u4e3a1\uff0c\u610f\u4e3a\u201c\u7981\u7528gap lock\u201d\u3002<\/li>\n<li>session1\u4e2d\u4f7f\u7528insert into target_tab&#8230; select&#8230;source_tab\u8fd9\u79cd\u65b9\u5f0f\u63d2\u5165\u6570\u636e\u3002<\/li>\n<li>session2\u4e2d\u5bf9source_tab\u6570\u636e\u8fdb\u884c\u66f4\u65b0\uff0c\u7136\u540e\u63d0\u4ea4\u3002<\/li>\n<li>session1\u63d0\u4ea4<\/li>\n<\/ol>\n<p>\u89c2\u67e5\u7ed3\u679c\uff0c\u662f\u7b26\u5408\u5e94\u7528\u903b\u8f91\u7684\uff0c\u4e0d\u8fc7\u5728\u5206\u6790BINLOG\u7684\u5185\u5bb9\u65f6\u4f1a\u53d1\u73b0\u66f4\u65b0\u64cd\u4f5c\u7684\u4f4d\u7f6e\u5728insert&#8230;select\u4e4b\u524d\uff0c\u5982\u679c\u4f7f\u7528\u8fd9\u4e2aBINLOG\u8fdb\u884c\u6570\u636e\u5e93\u6062\u590d\uff0c\u6062\u590d\u7684\u7ed3\u679c\u4e0e\u5b9e\u9645\u7684\u5e94\u7528\u903b\u8f91\u4e0d\u7b26\u5408\uff1b\u5982\u679c\u8fdb\u884c\u590d\u5236\uff0c\u5c31\u4f1a\u5bfc\u81f4\u4e3b\u4ece\u6570\u636e\u5e93\u4e0d\u4e00\u81f4\uff01\uff08\u8be5\u6848\u4f8b\u5e76\u6ca1\u6709\u5728\u8fdb\u884c\u6d4b\u8bd5\uff0c\u56e0\u4e3a\u5728\u8bbe\u7f6einnodb_locks_unsafe_for_binlog\u65f6\u7cfb\u7edf\u63d0\u793a\u53d8\u91cf\u4e3a\u53ea\u8bfb\uff0c\u901a\u8fc7\u67e5\u5728\u7ebf\u624b\u518c\uff0c\u8be5\u53d8\u91cf\u4e0d\u80fd\u52a8\u6001\u8bbe\u7f6e\u3002\uff09<\/p>\n<p>\u8fd9\u79cd\u67e5\u8be2\u6bd4\u8f83\u590d\u6742\u7684\u8bdd\uff0c\u4f1a\u9020\u6210\u4e25\u91cd\u7684\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u5728\u5e94\u7528\u4e2d\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u3002\u5b9e\u9645\u4e0amysql\u5c06\u8fd9\u79cdSQL\u53eb\u4e0d\u786e\u5b9a\u7684SQL\uff0c\u4e0d\u63a8\u8350\u4f7f\u7528\u3002<\/p>\n<p>\u5982\u679c\u5e94\u7528\u4e2d\u4e00\u5b9a\u8981\u7528\u8fd9\u79cdSQL\u6765\u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91\uff0c\u53c8\u4e0d\u5e0c\u671b\u5bf9\u6e90\u8868\u7684\u5e76\u53d1\u66f4\u65b0\u4ea7\u751f\u5f71\u54cd\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u4e24\u54b1\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u5c06innodb_locks_unsafe_for_binlog\u7684\u503c\u8bbe\u7f6e\u4e3a1\uff0c\u5f3a\u5236MYSQL\u4f7f\u7528MVCC\u3002\u4f46\u5b83\u7684\u4ee3\u4ef7\u662f\u53ef\u80fd\u65e0\u6cd5\u4f7f\u7528binlog\u6b63\u786e\u5730\u6062\u590d\u6216\u590d\u5236\u6570\u636e\uff0c\u56e0\u6b64\u4e0d\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u3002<\/li>\n<li>\u4f7f\u7528<br \/>\n<code>select * from source_tab ... into outfile<\/code>\u548c<code>load data infile...<\/code><br \/>\n\u8bed\u53e5\u7ec4\u5408\u6765\u95f4\u63a5\u5b9e\u73b0\uff0c\u91c7\u7528\u8fd9\u79cd\u65b9\u5f0fMYSQL\u4e0d\u4f1a\u7ed9source_tab\u52a0\u9501\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u901a\u8fc7BINLOG\u8bb0\u5f55\u6267\u884c\u6210\u529f\u7684INSERT\\UPDATE\\DELETE\u7b49\u66f4\u65b0\u6570\u636e\u7684SQL\u8bed\u53e5\uff0c\u5e76\u7531\u6b64\u5b9e\u73b0MYSQL\u6570\u636e\u5e93\u7684\u6062\u590d\u548c\u4e3b\u4ece\u590d\u5236\uff0cMYSQL\u7684&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.5x44.cn\/?p=856\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[39,41,38],"class_list":["post-856","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-innodb","tag-lock","tag-mysql"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=856"}],"version-history":[{"count":4,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/856\/revisions"}],"predecessor-version":[{"id":860,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/856\/revisions\/860"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}