{"id":49342,"date":"2024-12-02T16:47:51","date_gmt":"2024-12-02T08:47:51","guid":{"rendered":"https:\/\/fwq.ai\/blog\/49342\/"},"modified":"2024-12-02T16:47:51","modified_gmt":"2024-12-02T08:47:51","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%ef%bc%9a%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2%e7%89%b9%e5%ae%9a%e8%a1%a8%e4%b8%ad%e7%89%b9%e5%ae%9a%e5%ad%97%e6%ae%b5%e7%9a%84%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/49342\/","title":{"rendered":"MySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

MySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f<\/h1>\n

\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u6587\u7ae0<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300aMySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n

\"MySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f\u63d2\u56fe\"<\/p>\n

\u67e5\u8be2\u7279\u5b9a\u7684\u5b57\u6bb5\u503c<\/strong><\/p>\n

\u95ee\u9898\uff1a<\/strong>\u5982\u4f55\u67e5\u8be2 mysql \u6570\u636e\u5e93\u4e2d\u67d0\u4e2a\u8868\u4e2d\u7279\u5b9a\u7684\u5b57\u6bb5\u503c\uff1f<\/p>\n

\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n

\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\u6765\u67e5\u8be2\u7279\u5b9a\u8868\u7684\u7279\u5b9a\u5b57\u6bb5\uff1a<\/p>\n

select <\u5217\u96c6\u5408> from <\u8868\u540d> where <\u6761\u4ef6> order by <\u6392\u5e8f\u5b57\u6bb5\u548c\u65b9\u5f0f><\/pre>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • <\u5217\u96c6\u5408> \u662f\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u5217\u8868\uff0c\u4f8b\u5982 “id”, “name”, “age”<\/li>\n
  • <\u8868\u540d> \u662f\u76ee\u6807\u6570\u636e\u8868\u540d<\/li>\n
  • <\u6761\u4ef6> \u662f\u67e5\u8be2\u6761\u4ef6\uff0c\u7528\u4e8e\u8fc7\u6ee4\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u4f8b\u5982 “id > 10” \u6216 “name like ‘%john%'”<\/li>\n
  • <\u6392\u5e8f\u5b57\u6bb5\u548c\u65b9\u5f0f> \u662f\u53ef\u9009\u7684\uff0c\u7528\u4e8e\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4f8b\u5982 “order by id desc”<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u67e5\u8be2\u540d\u4e3a “users” \u8868\u4e2d\u7684\u6240\u6709\u7528\u6237\u7684 “name” \u5b57\u6bb5\u503c\uff1a<\/p>\n
    select name from users;<\/pre>\n
    \u67e5\u8be2 “users” \u8868\u4e2d “id” \u5927\u4e8e 10 \u7684\u7528\u6237\u7684 “name” \u548c “age” \u5b57\u6bb5\u503c\uff1a<\/p>\n
    select name, age from users where id > 10;<\/pre>\n
    \u67e5\u8be2 “users” \u8868\u4e2d “name” \u5b57\u6bb5\u5305\u542b “john” \u5b57\u7b26\u4e32\u7684\u6240\u6709\u7528\u6237\u7684 “id” \u548c “name” \u5b57\u6bb5\u503c\uff1a<\/p>\n
    SELECT id, name FROM users WHERE name LIKE '%John%';<\/pre>\n
    \u672c\u7bc7\u5173\u4e8e\u300aMySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    MySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f \u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300aMySQL\u6570\u636e\u5e93\uff1a\u5982\u4f55\u67e5\u8be2\u7279\u5b9a\u8868\u4e2d\u7279\u5b9a\u5b57\u6bb5\u7684\u503c\uff1f\u300b\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01 \u67e5\u8be2\u7279\u5b9a\u7684\u5b57\u6bb5\u503c \u95ee\u9898\uff1a\u5982\u4f55\u67e5\u8be2 mysql \u6570\u636e\u5e93\u4e2d\u67d0\u4e2a\u8868\u4e2d\u7279\u5b9a\u7684\u5b57\u6bb5\u503c\uff1f \u89e3\u51b3\u65b9\u6848\uff1a \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b sql \u8bed\u53e5\u6765\u67e5\u8be2\u7279\u5b9a\u8868\u7684\u7279\u5b9a\u5b57\u6bb5\uff1a select <\u5217\u96c6\u5408> from <\u8868\u540d> where <\u6761\u4ef6> order by <\u6392\u5e8f\u5b57\u6bb5\u548c\u65b9\u5f0f> \u5176\u4e2d\uff1a <\u5217\u96c6\u5408> \u662f\u8981\u67e5\u8be2\u7684\u5b57\u6bb5\u5217\u8868\uff0c\u4f8b\u5982 “id”, “name”, “age” <\u8868\u540d> \u662f\u76ee\u6807\u6570\u636e\u8868\u540d <\u6761\u4ef6> \u662f\u67e5\u8be2\u6761\u4ef6\uff0c\u7528\u4e8e\u8fc7\u6ee4\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u4f8b\u5982 “id > 10” \u6216 “name like ‘%john%’” <\u6392\u5e8f\u5b57\u6bb5\u548c\u65b9\u5f0f> \u662f\u53ef\u9009\u7684\uff0c\u7528\u4e8e\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4f8b\u5982 “order by id desc” \u793a\u4f8b\uff1a \u67e5\u8be2\u540d\u4e3a “users” \u8868\u4e2d\u7684\u6240\u6709\u7528\u6237\u7684 “name” \u5b57\u6bb5\u503c\uff1a select name from users; \u67e5\u8be2 “users” \u8868\u4e2d […]<\/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-49342","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/49342","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=49342"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/49342\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=49342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=49342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=49342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}