{"id":1477,"date":"2021-10-11T23:21:48","date_gmt":"2021-10-11T15:21:48","guid":{"rendered":"https:\/\/www.siediyer.cn\/?p=1477"},"modified":"2021-10-11T23:21:48","modified_gmt":"2021-10-11T15:21:48","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e5%bc%80%e5%8f%91%e7%9a%84-36-%e6%9d%a1%e5%86%9b%e8%a7%84","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=1477","title":{"rendered":"MySQL\u6570\u636e\u5e93\u5f00\u53d1\u7684 36 \u6761\u519b\u89c4"},"content":{"rendered":"

\u6838\u5fc3\u519b\u89c4<\/h1>\n
    \n
  1. \u5c3d\u91cf\u4e0d\u5728\u6570\u636e\u5e93\u505a\u8fd0\u7b97<\/li>\n
  2. \u63a7\u5236\u5355\u8868\u6570\u636e\u91cf \u7eafINT\u4e0d\u8d85\u8fc710M\u6761\uff0c\u542bChar\u4e0d\u8d85\u8fc75M\u6761<\/li>\n
  3. \u4fdd\u6301\u8868\u8eab\u6bb5\u82d7\u6761<\/li>\n
  4. \u5e73\u8861\u8303\u5f0f\u548c\u5197\u4f59<\/li>\n
  5. \u62d2\u7edd\u5927SQL\uff0c\u590d\u6742\u4e8b\u52a1\uff0c\u5927\u6279\u91cf\u4efb\u52a1<\/li>\n<\/ol>\n

    \u5b57\u6bb5\u7c7b\u519b\u89c4<\/h1>\n
      \n
    1. \u7528\u597d\u6570\u503c\u5b57\u6bb5\uff0c\u5c3d\u91cf\u7b80\u5316\u5b57\u6bb5\u4f4d\u6570<\/li>\n
    2. \u628a\u5b57\u7b26\u8f6c\u5316\u4e3a\u6570\u5b57<\/li>\n
    3. \u4f18\u5148\u4f7f\u7528Enum\u6216Set<\/li>\n
    4. \u907f\u514d\u4f7f\u7528Null\u5b57\u6bb5<\/li>\n
    5. \u5c11\u7528\u5e76\u62c6\u5c01Text\/Blob<\/li>\n
    6. \u4e0d\u5728\u6570\u636e\u5e93\u4e2d\u5b58\u56fe\u7247<\/li>\n<\/ol>\n

      \u7d22\u5f15\u7c7b\u519b\u89c4<\/h1>\n
        \n
      1. \u8c28\u614e\u5408\u7406\u6dfb\u52a0\u7d22\u5f15<\/li>\n
      2. \u5b57\u7b26\u5b57\u6bb5\u5fc5\u987b\u5efa\u7acb\u524d\u7f00\u7d22\u5f15?<\/li>\n
      3. \u4e0d\u5728\u7d22\u5f15\u5217\u505a\u8fd0\u7b97<\/li>\n
      4. \u81ea\u589e\u5217\u6216\u5168\u5c40ID\u505aInnoDB\u4e3b\u952e<\/li>\n
      5. \u5c3d\u91cf\u4e0d\u7528\u5916\u952e<\/li>\n<\/ol>\n

        SQL\u7c7b\u519b\u89c4<\/h1>\n
          \n
        1. SQL\u5c3d\u53ef\u80fd\u7b80\u5355<\/li>\n
        2. \u4fdd\u6301\u4e8b\u52a1\u8fde\u63a5\u77ed\u5c0f<\/li>\n
        3. \u5c3d\u53ef\u80fd\u907f\u514d\u4f7f\u7528SP\/Trigger\/Function<\/li>\n
        4. \u5c3d\u91cf\u4e0d\u7528Select *<\/li>\n
        5. \u6539\u5199Or\u4e3aIN()<\/li>\n
        6. \u6539\u5199Or\u4e3aUnion<\/li>\n
        7. \u907f\u514d\u8d1f\u5411\u67e5\u8be2\u548c%\u524d\u7f00\u6a21\u7cca\u67e5\u8be2<\/li>\n
        8. Count\u4e0d\u8981\u4f7f\u7528\u5728\u53efNull\u7684\u5b57\u6bb5\u4e0a\u9762<\/li>\n
        9. \u51cf\u5c11Count(*)<\/li>\n
        10. Limit\u9ad8\u6548\u5206\u9875\uff0cSELECT * FROM message WHERE id > 9527 (or sub select) limit 10<\/li>\n
        11. \u4f7f\u7528Union ALL \u800c\u4e0d\u7528Union<\/li>\n
        12. \u5206\u89e3\u94fe\u63a5\uff0c\u4fdd\u8bc1\u9ad8\u5e76\u53d1<\/li>\n
        13. Group By \u53bb\u9664\u6392\u5e8f<\/li>\n
        14. \u540c\u6570\u636e\u7c7b\u578b\u7684\u5217\u503c\u6bd4\u8f83<\/li>\n
        15. Load Data\u5bfc\u5165\u6570\u636e\uff0c\u6bd4Insert\u5feb20\u500d<\/li>\n
        16. \u6253\u6563\u5927\u6279\u91cf\u66f4\u65b0\uff0c\u5c3d\u91cf\u51cc\u6668\u64cd\u4f5c<\/li>\n<\/ol>\n

          \u7ea6\u5b9a\u7c7b\u519b\u89c4<\/h1>\n
            \n
          1. \u9694\u79bb\u7ebf\u4e0a\u7ebf\u4e0b<\/li>\n
          2. \u7981\u6b62\u672a\u7ecfDBA\u8ba4\u8bc1\u7684\u5b50\u67e5\u8be2<\/li>\n
          3. \u6c38\u8fdc\u4e0d\u5728\u7a0b\u5e8f\u6bb5\u663e\u5f0f\u52a0\u9501<\/li>\n
          4. \u8868\u5b57\u7b26\u96c6\u7edf\u4e00\u4f7f\u7528UTF8MB4<\/li>\n<\/ol>\n

            \u7edf\u4e00\u4f7f\u7528UTF8MB4 for by \u53ef\u80fd\u8fd8\u6709\u4eba\u4e0d\u77e5\u9053\uff0cMySQL \u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\uff0c\u8981\u7528 utf8mb4\uff0c\u800c\u4e0d\u662futf8\u3002\u56e0\u4e3aMySQL\u7684utf8\u4e0d\u662f\u771f\u6b63\u7684UTF-8\uff0c\u53ea\u652f\u6301\u6700\u591a\u4e09\u4e2a\u5b57\u8282\u7684\u5b57\u7b26\u3002\u771f\u6b63\u7684UTF-8\u53ef\u80fd\u4f1a\u51fa\u73b0\u56db\u4e2a\u5b57\u8282\u7684\u5b57\u7b26\u3002MySQL \u4ece\u6765\u6ca1\u6709\u4fee\u590d\u8fd9\u4e2a Bug\uff0c\u800c\u662f\u4f7f\u7528\u53e6\u5916\u7684\u89e3\u51b3\u65b9\u6cd5\uff1a\u771f\u6b63\u7684UTF-8\u5b57\u7b26\u96c6\u7528 utf8mb4\u7684\u540d\u5b57\u63d0\u4f9b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

            \u6838\u5fc3\u519b\u89c4 \u5c3d\u91cf\u4e0d\u5728\u6570\u636e\u5e93\u505a\u8fd0\u7b97 \u63a7\u5236\u5355\u8868\u6570\u636e\u91cf \u7eafINT\u4e0d\u8d85\u8fc710M\u6761\uff0c\u542bChar\u4e0d\u8d85\u8fc75M\u6761 \u4fdd\u6301\u8868\u8eab\u6bb5\u82d7\u6761 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[105,22],"class_list":["post-1477","post","type-post","status-publish","format-standard","hentry","category-php","tag-105","tag-mysql"],"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1477"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1477\/revisions"}],"predecessor-version":[{"id":1478,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1477\/revisions\/1478"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}