{"id":5156,"date":"2024-11-14T13:10:04","date_gmt":"2024-11-14T05:10:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5156\/"},"modified":"2024-11-14T13:10:04","modified_gmt":"2024-11-14T05:10:04","slug":"mysql%e9%94%81%e8%a1%a8%e6%80%8e%e4%b9%88%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5156\/","title":{"rendered":"mysql\u9501\u8868\u600e\u4e48\u8bbe\u7f6e"},"content":{"rendered":"<blockquote><p>\n  mysql \u63d0\u4f9b\u4e86\u4e09\u79cd\u9501\u5b9a\u7c7b\u578b\uff1a\u8bfb\u9501\uff08\u5141\u8bb8\u8bfb\u53d6\uff09\u3001\u5199\u9501\uff08\u963b\u6b62\u8bfb\u5199\uff09\u548c\u610f\u5411\u9501\uff08\u8868\u793a\u672a\u6765\u53ef\u80fd\u9700\u8981\u52a0\u9501\uff09\u3002\u8bed\u6cd5\u4e3a\uff1alock tables table_name [as alias] lock_type;\u4f8b\u5982\uff0c\u9501\u5b9a accounts \u8868\u4ee5\u4f9b\u8bfb\u53d6\uff1alock tables accounts read;\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/22\/2024052217362131745.jpg\" class=\"aligncenter\" title=\"mysql\u9501\u8868\u600e\u4e48\u8bbe\u7f6e\u63d2\u56fe\" alt=\"mysql\u9501\u8868\u600e\u4e48\u8bbe\u7f6e\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8bbe\u7f6e MySQL \u9501\u8868<\/strong><\/p>\n<p><strong>\u9501\u5b9a\u7c7b\u578b<\/strong><\/p>\n<p>MySQL \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4e09\u79cd\u9501\u5b9a\u7c7b\u578b\uff1a<\/p>\n<ul>\n<li> <strong>\u8bfb\u9501 (LOCK IN SHARE MODE)<\/strong>\uff1a\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bfb\u53d6\u8868\u4e2d\u7684\u6570\u636e\uff0c\u4f46\u4e0d\u80fd\u5199\u5165\u3002<\/li>\n<li> <strong>\u5199\u9501 (FOR UPDATE)<\/strong>\uff1a\u72ec\u5360\u9501\uff0c\u4e0d\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bfb\u53d6\u6216\u5199\u5165\u8868\u6570\u636e\u3002<\/li>\n<li> <strong>\u610f\u5411\u9501<\/strong>\uff1a\u5728\u6267\u884c\u8f83\u957f\u7684\u67e5\u8be2\u4e4b\u524d\uff0cMySQL \u4f1a\u83b7\u53d6\u610f\u5411\u9501\u6765\u8868\u660e\u672a\u6765\u53ef\u80fd\u9700\u8981\u5bf9\u8868\u8fdb\u884c\u52a0\u9501\u3002<\/li>\n<\/ul>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u8981\u9501\u5b9a\u8868\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>LOCK TABLES table_name [AS alias] lock_type;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>LOCK TABLES accounts FOR UPDATE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u4e0d\u540c\u7684\u9501\u5b9a\u7c7b\u578b\uff1a<\/p>\n<ul>\n<li>\u8bfb\u9501\uff1a<\/li>\n<\/ul>\n<pre>LOCK TABLES accounts READ;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5199\u9501\uff1a<\/li>\n<\/ul>\n<pre>LOCK TABLES accounts WRITE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u610f\u5411\u9501\uff1a<\/li>\n<\/ul>\n<pre>LOCK TABLES accounts LOW_PRIORITY WRITE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u9501\u5b9a\u8868\u65f6\uff0c\u4e8b\u52a1\u5c06\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\uff0c\u76f4\u5230\u89e3\u9501\u4e3a\u6b62\u3002<\/li>\n<li>\u5728\u89e3\u9501\u4e4b\u524d\u63d0\u4ea4\u6216\u56de\u6eda\u4e8b\u52a1\u4f1a\u81ea\u52a8\u91ca\u653e\u6240\u6709\u8868\u9501\u3002<\/li>\n<li>\u540c\u65f6\u4f7f\u7528\u8bfb\u9501\u548c\u5199\u9501\u4f1a\u5f15\u53d1\u6b7b\u9501\u3002<\/li>\n<li>\u5e94\u8c28\u614e\u4f7f\u7528\u9501\u8868\uff0c\u56e0\u4e3a\u5b83\u4eec\u4f1a\u5f71\u54cd\u5176\u4ed6\u4e8b\u52a1\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u9501\u8868\u600e\u4e48\u8bbe\u7f6e\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>mysql \u63d0\u4f9b\u4e86\u4e09\u79cd\u9501\u5b9a\u7c7b\u578b\uff1a\u8bfb\u9501\uff08\u5141\u8bb8\u8bfb\u53d6\uff09\u3001\u5199\u9501\uff08\u963b\u6b62\u8bfb\u5199\uff09\u548c\u610f\u5411\u9501\uff08\u8868\u793a\u672a\u6765\u53ef\u80fd\u9700\u8981\u52a0\u9501\uff09\u3002\u8bed\u6cd5\u4e3a\uff1alock tables table_name [as alias] lock_type;\u4f8b\u5982\uff0c\u9501\u5b9a accounts \u8868\u4ee5\u4f9b\u8bfb\u53d6\uff1alock tables accounts read; \u5982\u4f55\u8bbe\u7f6e MySQL \u9501\u8868 \u9501\u5b9a\u7c7b\u578b MySQL \u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4e09\u79cd\u9501\u5b9a\u7c7b\u578b\uff1a \u8bfb\u9501 (LOCK IN SHARE MODE)\uff1a\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bfb\u53d6\u8868\u4e2d\u7684\u6570\u636e\uff0c\u4f46\u4e0d\u80fd\u5199\u5165\u3002 \u5199\u9501 (FOR UPDATE)\uff1a\u72ec\u5360\u9501\uff0c\u4e0d\u5141\u8bb8\u5176\u4ed6\u4e8b\u52a1\u8bfb\u53d6\u6216\u5199\u5165\u8868\u6570\u636e\u3002 \u610f\u5411\u9501\uff1a\u5728\u6267\u884c\u8f83\u957f\u7684\u67e5\u8be2\u4e4b\u524d\uff0cMySQL \u4f1a\u83b7\u53d6\u610f\u5411\u9501\u6765\u8868\u660e\u672a\u6765\u53ef\u80fd\u9700\u8981\u5bf9\u8868\u8fdb\u884c\u52a0\u9501\u3002 \u8bed\u6cd5 \u8981\u9501\u5b9a\u8868\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a LOCK TABLES table_name [AS alias] lock_type; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff1a LOCK TABLES accounts FOR UPDATE; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b \u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u4e0d\u540c\u7684\u9501\u5b9a\u7c7b\u578b\uff1a \u8bfb\u9501\uff1a LOCK TABLES accounts READ; \u767b\u5f55\u540e\u590d\u5236 \u5199\u9501\uff1a LOCK TABLES [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5156","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5156"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5156\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}