{"id":1152,"date":"2025-07-29T04:35:25","date_gmt":"2025-07-28T20:35:25","guid":{"rendered":"https:\/\/www.hgfwq.com\/blog\/?p=1152"},"modified":"2025-07-29T04:35:25","modified_gmt":"2025-07-28T20:35:25","slug":"regexp-sql-%e7%94%a8%e6%b3%95%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%e5%ae%9e%e7%8e%b0%e7%94%b5%e5%ad%90%e9%82%ae%e4%bb%b6%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d%e5%92%8c%e6%90%9c","status":"publish","type":"post","link":"https:\/\/www.hgfwq.com\/blog\/1152.html","title":{"rendered":"regexp sql \u7528\u6cd5\u5982\u4f55\u5728\u6570\u636e\u5e93\u4e2d\u5b9e\u73b0\u7535\u5b50\u90ae\u4ef6\u6a21\u5f0f\u5339\u914d\u548c\u641c\u7d22\uff1f"},"content":{"rendered":"

\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff08REGEXP\uff09\u8fdb\u884c\u6a21\u5f0f\u5339\u914d\u548c\u641c\u7d22\u3002\u6211\u4eec\u5c06\u901a\u8fc7\u4e00\u7cfb\u5217\u7684\u5b9e\u64cd\u6b65\u9aa4\uff0c\u5e2e\u52a9\u60a8\u7406\u89e3\u5e76\u638c\u63e1REGEXP\u5728SQL\u67e5\u8be2\u4e2d\u7684\u7528\u6cd5\u3002<\/p>\n

\"regexp<\/p>\n<\/p>\n

\u4efb\u52a1\u6982\u8ff0<\/h2>\n<\/p>\n

\u901a\u8fc7\u4f7f\u7528REGEXP\uff0c\u6211\u4eec\u5c06\u4ece\u4e00\u4e2a\u5305\u542b\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7684\u6570\u636e\u5e93\u8868\u4e2d\u7b5b\u9009\u51fa\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002<\/p>\n<\/p>\n

\u64cd\u4f5c\u524d\u7684\u51c6\u5907<\/h2>\n<\/p>\n

\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u60a8\u5df2\u7ecf\u5b89\u88c5\u4e86\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08\u5982MySQL\u3001PostgreSQL\u7b49\uff09\uff0c\u5e76\u4e14\u5df2\u7ecf\u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7684\u8868\u3002<\/p>\n<\/p>\n

1. \u521b\u5efa\u6d4b\u8bd5\u6570\u636e\u5e93\u548c\u8868<\/h2>\n<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684SQL\u547d\u4ee4\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a`email_table`\u7684\u8868\uff0c\u5e76\u63d2\u5165\u4e00\u4e9b\u6d4b\u8bd5\u6570\u636e\u3002<\/p>\n<\/p>\n

CREATE TABLE email_table (<\/p>\r\n
    id INT AUTO_INCREMENT PRIMARY KEY,<\/p>\r\n
    email VARCHAR(255)<\/p>\r\n
);<\/p>\r\n\r\n
INSERT INTO email_table (email) VALUES<\/p>\r\n
('user1@example.com'),<\/p>\r\n
('user2@example.org'),<\/p>\r\n
('user3@subdomain.example.co.uk'),<\/p>\r\n
('user4@localhost'),<\/p>\r\n
('user5@invalid-email'),<\/p>\r\n
('user6@example.com');<\/p>\r\n
<\/code><\/pre>\n<\/p>\n
2. \u4f7f\u7528REGEXP\u8fdb\u884c\u641c\u7d22<\/h2>\n<\/p>\n
2.1 \u641c\u7d22\u4ee5@example.com\u7ed3\u5c3e\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740<\/h3>\n<\/p>\n
\u6211\u4eec\u5c06\u4f7f\u7528REGEXP\u6765\u641c\u7d22\u6240\u6709\u4ee5@example.com\u7ed3\u5c3e\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002<\/p>\n<\/p>\n
SELECT  FROM email_table WHERE email REGEXP '.@example\\.com$';<\/p>\r\n
<\/code><\/pre>\n<\/p>\n
\u89e3\u91ca\uff1a<\/strong><\/p>\n<\/p>\n
    \n
  • `.` \u8868\u793a\u5339\u914d\u4efb\u610f\u5b57\u7b26\uff08\u5305\u62ec0\u4e2a\u5b57\u7b26\uff09\u4efb\u610f\u6b21\u6570\u3002<\/li>\n
  • `@example\\.com` \u8868\u793a\u5339\u914d\u5b57\u7b26\u4e32@example.com\uff0c\u5176\u4e2d`\\.`\u7528\u4e8e\u8f6c\u4e49`.`\u5b57\u7b26\u3002<\/li>\n
  • `$` \u8868\u793a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u672b\u5c3e\u3002<\/li>\n<\/ul>\n
    2.2 \u641c\u7d22\u5305\u542b\u7279\u5b9a\u5b50\u57df\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740<\/h3>\n<\/p>\n
    \u6211\u4eec\u5c06\u4f7f\u7528REGEXP\u6765\u641c\u7d22\u6240\u6709\u5305\u542bsubdomain\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002<\/p>\n<\/p>\n
    SELECT  FROM email_table WHERE email REGEXP '.subdomain\\.example\\..';<\/p>\r\n
    <\/code><\/pre>\n<\/p>\n
    \u89e3\u91ca\uff1a<\/strong><\/p>\n<\/p>\n
      \n
    • `.` \u8868\u793a\u5339\u914d\u4efb\u610f\u5b57\u7b26\u4efb\u610f\u6b21\u6570\u3002<\/li>\n
    • `subdomain\\.example\\.` \u8868\u793a\u5339\u914dsubdomain.example.\uff0c\u5176\u4e2d`\\.`\u7528\u4e8e\u8f6c\u4e49`.`\u5b57\u7b26\u3002<\/li>\n
    • `.` \u8868\u793a\u5339\u914d\u4efb\u610f\u5b57\u7b26\u4efb\u610f\u6b21\u6570\u3002<\/li>\n<\/ul>\n
      3. \u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u9047\u5230\u7684\u95ee\u9898\u548c\u6ce8\u610f\u4e8b\u9879<\/h2>\n<\/p>\n
      \u4ee5\u4e0b\u662f\u4f7f\u7528REGEXP\u65f6\u53ef\u80fd\u9047\u5230\u7684\u4e00\u4e9b\u95ee\u9898\u548c\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<\/p>\n
        \n
      • \u786e\u4fdd\u60a8\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u6b63\u786e\u7684\uff0c\u5e76\u4e14\u8f6c\u4e49\u4e86\u6240\u6709\u5fc5\u8981\u7684\u5b57\u7b26\u3002<\/li>\n
      • \u5728\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\uff0c\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u6765\u907f\u514d\u8bed\u6cd5\u9519\u8bef\u3002<\/li>\n
      • \u67d0\u4e9b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u53ef\u80fd\u652f\u6301\u4e0d\u540c\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5\uff0c\u8bf7\u53c2\u8003\u76f8\u5e94\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n
        4. \u5b9e\u7528\u6280\u5de7<\/h2>\n<\/p>\n
        \u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528REGEXP\u65f6\u7684\u5b9e\u7528\u6280\u5de7\uff1a<\/p>\n<\/p>\n
          \n
        • \u4f7f\u7528\u5728\u7ebf\u6b63\u5219\u8868\u8fbe\u5f0f\u6d4b\u8bd5\u5de5\u5177\u6765\u9a8c\u8bc1\u60a8\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/li>\n
        • \u5728\u590d\u6742\u7684\u67e5\u8be2\u4e2d\uff0c\u5148\u5355\u72ec\u6d4b\u8bd5REGEXP\u90e8\u5206\uff0c\u786e\u4fdd\u5176\u6b63\u786e\u6027\u3002<\/li>\n<\/ul>\n
          \u901a\u8fc7\u672c\u6587\u7684\u5b9e\u64cd\u6b65\u9aa4\uff0c\u60a8\u5e94\u8be5\u5df2\u7ecf\u638c\u63e1\u4e86\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528REGEXP\u8fdb\u884c\u6a21\u5f0f\u5339\u914d\u548c\u641c\u7d22\u3002\u5e0c\u671b\u8fd9\u4e9b\u4fe1\u606f\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<\/p>\n
          “`<\/p>\n","protected":false},"excerpt":{"rendered":"
          \u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff08REGEXP\uff09\u8fdb\u884c\u6a21\u5f0f\u5339\u914d\u548c\u641c\u7d22\u3002\u6211\u4eec\u5c06\u901a\u8fc7\u4e00\u7cfb\u5217\u7684\u5b9e\u64cd\u6b65\u9aa4\uff0c\u5e2e\u52a9\u60a8\u7406\u89e3\u5e76\u638c\u63e1REGEXP\u5728SQL\u67e5\u8be2\u4e2d\u7684\u7528\u6cd5\u3002 \u4efb\u52a1\u6982\u8ff0 \u901a\u8fc7\u4f7f\u7528REGEXP\uff0c\u6211\u4eec\u5c06\u4ece\u4e00\u4e2a\u5305\u542b\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7684\u6570\u636e\u5e93\u8868\u4e2d\u7b5b\u9009\u51fa\u7b26\u5408…<\/p>\n","protected":false},"author":1,"featured_media":1153,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[464,338,465],"topic":[],"class_list":["post-1152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haiwai","tag-regexp","tag-sql","tag-465"],"_links":{"self":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/1152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/comments?post=1152"}],"version-history":[{"count":1,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/1152\/revisions"}],"predecessor-version":[{"id":1155,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/1152\/revisions\/1155"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media\/1153"}],"wp:attachment":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media?parent=1152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/categories?post=1152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/tags?post=1152"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/topic?post=1152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}