{"id":5459,"date":"2024-11-14T11:56:06","date_gmt":"2024-11-14T03:56:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5459\/"},"modified":"2024-11-14T11:56:06","modified_gmt":"2024-11-14T03:56:06","slug":"mysql%e8%a7%a6%e5%8f%91%e5%99%a8%e6%80%8e%e4%b9%88%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5459\/","title":{"rendered":"mysql\u89e6\u53d1\u5668\u600e\u4e48\u8bbe\u7f6e"},"content":{"rendered":"

\n mysql \u89e6\u53d1\u5668\u901a\u8fc7\u89e6\u53d1\u6761\u4ef6\u81ea\u52a8\u6267\u884c sql \u7a0b\u5e8f\uff0c\u7528\u4e8e\u5f3a\u5236\u6267\u884c\u4e1a\u52a1\u89c4\u5219\u6216\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u3002\u8bbe\u7f6e\u89e6\u53d1\u5668\u5305\u542b\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u786e\u5b9a\u89e6\u53d1\u6761\u4ef6\uff1b\u7f16\u5199\u89e6\u53d1\u5668\u8bed\u53e5\uff0c\u5305\u542b\u89e6\u53d1\u5668\u540d\u79f0\u3001\u6761\u4ef6\u548c\u52a8\u4f5c\uff1b\u521b\u5efa\u89e6\u53d1\u5668\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\u901a\u8fc7\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u901a\u77e5\u5ba2\u6237\u3002\u89e6\u53d1\u5668\u53ef\u4ee5\u662f before \u6216 after \u7c7b\u578b\uff0c\u5e76\u4e14\u53ef\u4ee5\u9488\u5bf9\u6bcf\u884c\u6216\u6574\u4e2a\u8bed\u53e5\u6267\u884c\u3002\u8c28\u614e\u4f7f\u7528\u89e6\u53d1\u5668\uff0c\u4ee5\u907f\u514d\u6027\u80fd\u95ee\u9898\u6216\u6b7b\u9501\u3002\n<\/p><\/blockquote>\n

\"mysql\u89e6\u53d1\u5668\u600e\u4e48\u8bbe\u7f6e\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u8bbe\u7f6e MySQL \u89e6\u53d1\u5668<\/strong><\/p>\n

\u89e6\u53d1\u5668\u662f\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684 SQL \u7a0b\u5e8f\uff0c\u5f53\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6\u65f6\uff0c\u5b83\u4eec\u4f1a\u81ea\u52a8\u6267\u884c\u3002\u5b83\u4eec\u7528\u4e8e\u5728\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\u5f3a\u5236\u6267\u884c\u4e1a\u52a1\u89c4\u5219\u3001\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u6216\u6267\u884c\u5176\u4ed6\u81ea\u5b9a\u4e49\u64cd\u4f5c\u3002<\/p>\n

\u8bbe\u7f6e MySQL \u89e6\u53d1\u5668<\/strong><\/p>\n

\u8bbe\u7f6e MySQL \u89e6\u53d1\u5668\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u786e\u5b9a\u89e6\u53d1\u6761\u4ef6\uff1a<\/strong>\u786e\u5b9a\u89e6\u53d1\u5668\u5e94\u8be5\u5728\u4f55\u65f6\u89e6\u53d1\uff0c\u4f8b\u5982\u5728\u8bb0\u5f55\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\u65f6\u3002<\/li>\n
  2. \n

    \u7f16\u5199\u89e6\u53d1\u5668\u8bed\u53e5\uff1a<\/strong>\u4f7f\u7528 CREATE TRIGGER \u8bed\u53e5\u6765\u521b\u5efa\u89e6\u53d1\u5668\uff0c\u8be5\u8bed\u53e5\u5305\u542b\u4ee5\u4e0b\u4fe1\u606f\uff1a<\/p>\n

      \n
    • \u89e6\u53d1\u5668\u540d\u79f0<\/li>\n
    • \u89e6\u53d1\u6761\u4ef6<\/li>\n
    • \u89e6\u53d1\u52a8\u4f5c<\/li>\n<\/ul>\n<\/li>\n
    • \n

      \u6307\u5b9a\u89e6\u53d1\u52a8\u4f5c\uff1a<\/strong>\u6307\u5b9a\u89e6\u53d1\u5668\u5728\u89e6\u53d1\u6761\u4ef6\u6ee1\u8db3\u65f6\u5e94\u6267\u884c\u7684\u64cd\u4f5c\u3002\u8fd9\u53ef\u4ee5\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n

        \n
      • \u66f4\u65b0\u6216\u5220\u9664\u6570\u636e<\/li>\n
      • \u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u6216 SMS \u901a\u77e5<\/li>\n
      • \u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b<\/li>\n<\/ul>\n<\/li>\n
      • \u521b\u5efa\u89e6\u53d1\u5668\uff1a<\/strong>\u4f7f\u7528 CREATE TRIGGER \u8bed\u53e5\u521b\u5efa\u89e6\u53d1\u5668\u3002<\/li>\n<\/ol>\n

        \u793a\u4f8b\u89e6\u53d1\u5668<\/strong><\/p>\n

        \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5728\u5411 orders \u8868\u4e2d\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u7684\u793a\u4f8b\u89e6\u53d1\u5668\uff1a<\/p>\n

        CREATE TRIGGER send_order_email AFTER INSERT ON orders\nFOR EACH ROW\nBEGIN\n  -- \u53d1\u9001\u7535\u5b50\u90ae\u4ef6\n  SET @email = (SELECT email FROM customers WHERE id = NEW.customer_id);\n  SET @order_id = NEW.id;\n  SET @subject = 'New Order Confirmation';\n  SET @body = 'Dear Customer,\n  Your order with ID ' || @order_id || ' has been placed successfully.';\n\n  CALL send_email(@email, @subject, @body);\nEND<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
          \n
        • \u89e6\u53d1\u5668\u53ef\u4ee5\u662f BEFORE \u6216 AFTER \u7c7b\u578b\uff0c\u8fd9\u5c06\u786e\u5b9a\u5b83\u4eec\u662f\u5728\u64cd\u4f5c\u53d1\u751f\u4e4b\u524d\u8fd8\u662f\u4e4b\u540e\u89e6\u53d1\u3002<\/li>\n
        • \u89e6\u53d1\u5668\u53ef\u4ee5\u6307\u5b9a FOR EACH ROW \u6216 FOR EACH STATEMENT\uff0c\u8fd9\u5c06\u786e\u5b9a\u89e6\u53d1\u5668\u662f\u9488\u5bf9\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u8fd8\u662f\u9488\u5bf9\u6574\u4e2a\u8bed\u53e5\u6267\u884c\u3002<\/li>\n
        • \u52a1\u5fc5\u8c28\u614e\u4f7f\u7528\u89e6\u53d1\u5668\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u6216\u6b7b\u9501\u3002<\/li>\n<\/ul>\n
          \u4ee5\u4e0a\u5c31\u662f\u89e6\u53d1\u5668\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":"
          mysql \u89e6\u53d1\u5668\u901a\u8fc7\u89e6\u53d1\u6761\u4ef6\u81ea\u52a8\u6267\u884c sql \u7a0b\u5e8f\uff0c\u7528\u4e8e\u5f3a\u5236\u6267\u884c\u4e1a\u52a1\u89c4\u5219\u6216\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u3002\u8bbe\u7f6e\u89e6\u53d1\u5668\u5305\u542b\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u786e\u5b9a\u89e6\u53d1\u6761\u4ef6\uff1b\u7f16\u5199\u89e6\u53d1\u5668\u8bed\u53e5\uff0c\u5305\u542b\u89e6\u53d1\u5668\u540d\u79f0\u3001\u6761\u4ef6\u548c\u52a8\u4f5c\uff1b\u521b\u5efa\u89e6\u53d1\u5668\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\u901a\u8fc7\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u901a\u77e5\u5ba2\u6237\u3002\u89e6\u53d1\u5668\u53ef\u4ee5\u662f before \u6216 after \u7c7b\u578b\uff0c\u5e76\u4e14\u53ef\u4ee5\u9488\u5bf9\u6bcf\u884c\u6216\u6574\u4e2a\u8bed\u53e5\u6267\u884c\u3002\u8c28\u614e\u4f7f\u7528\u89e6\u53d1\u5668\uff0c\u4ee5\u907f\u514d\u6027\u80fd\u95ee\u9898\u6216\u6b7b\u9501\u3002 \u5982\u4f55\u8bbe\u7f6e MySQL \u89e6\u53d1\u5668 \u89e6\u53d1\u5668\u662f\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684 SQL \u7a0b\u5e8f\uff0c\u5f53\u6ee1\u8db3\u67d0\u4e9b\u6761\u4ef6\u65f6\uff0c\u5b83\u4eec\u4f1a\u81ea\u52a8\u6267\u884c\u3002\u5b83\u4eec\u7528\u4e8e\u5728\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\u5f3a\u5236\u6267\u884c\u4e1a\u52a1\u89c4\u5219\u3001\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u6216\u6267\u884c\u5176\u4ed6\u81ea\u5b9a\u4e49\u64cd\u4f5c\u3002 \u8bbe\u7f6e MySQL \u89e6\u53d1\u5668 \u8bbe\u7f6e MySQL \u89e6\u53d1\u5668\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u786e\u5b9a\u89e6\u53d1\u6761\u4ef6\uff1a\u786e\u5b9a\u89e6\u53d1\u5668\u5e94\u8be5\u5728\u4f55\u65f6\u89e6\u53d1\uff0c\u4f8b\u5982\u5728\u8bb0\u5f55\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\u65f6\u3002 \u7f16\u5199\u89e6\u53d1\u5668\u8bed\u53e5\uff1a\u4f7f\u7528 CREATE TRIGGER \u8bed\u53e5\u6765\u521b\u5efa\u89e6\u53d1\u5668\uff0c\u8be5\u8bed\u53e5\u5305\u542b\u4ee5\u4e0b\u4fe1\u606f\uff1a \u89e6\u53d1\u5668\u540d\u79f0 \u89e6\u53d1\u6761\u4ef6 \u89e6\u53d1\u52a8\u4f5c \u6307\u5b9a\u89e6\u53d1\u52a8\u4f5c\uff1a\u6307\u5b9a\u89e6\u53d1\u5668\u5728\u89e6\u53d1\u6761\u4ef6\u6ee1\u8db3\u65f6\u5e94\u6267\u884c\u7684\u64cd\u4f5c\u3002\u8fd9\u53ef\u4ee5\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a \u66f4\u65b0\u6216\u5220\u9664\u6570\u636e \u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u6216 SMS \u901a\u77e5 \u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b \u521b\u5efa\u89e6\u53d1\u5668\uff1a\u4f7f\u7528 CREATE TRIGGER \u8bed\u53e5\u521b\u5efa\u89e6\u53d1\u5668\u3002 \u793a\u4f8b\u89e6\u53d1\u5668 \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5728\u5411 orders \u8868\u4e2d\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u7684\u793a\u4f8b\u89e6\u53d1\u5668\uff1a CREATE TRIGGER send_order_email AFTER INSERT ON orders FOR EACH ROW BEGIN — \u53d1\u9001\u7535\u5b50\u90ae\u4ef6 […]<\/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-5459","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5459","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=5459"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5459\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}