{"id":23131,"date":"2024-11-21T08:18:57","date_gmt":"2024-11-21T00:18:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23131\/"},"modified":"2024-11-21T08:18:57","modified_gmt":"2024-11-21T00:18:57","slug":"thinkphp%e4%b8%ad%e6%80%8e%e4%b9%88%e8%b0%83%e7%94%a8mysql%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23131\/","title":{"rendered":"thinkphp\u4e2d\u600e\u4e48\u8c03\u7528mysql\u5b57\u6bb5"},"content":{"rendered":"<\/p>\n

\u4e00\u3001\u521b\u5efa\u6570\u636e\u5e93\u8868\u548c\u6570\u636e<\/strong><\/p>\n

\u5728\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u5148\u521b\u5efa\u6570\u636e\u5e93\u53ca\u76f8\u5e94\u7684\u6570\u636e\u8868\u3002\u6211\u4eec\u5047\u8bbe\u9700\u8981\u5f00\u53d1\u4e00\u4e2a\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\uff0c\u5176\u4e2d\u9700\u8981\u5efa\u7acb\u4e00\u4e2a\u540d\u4e3astudent\u7684\u6570\u636e\u5e93\u8868\uff0c\u4ee5\u5b58\u50a8\u5b66\u751f\u7684\u57fa\u672c\u4fe1\u606f\u3002\u8868\u5305\u542b\u4ee5\u4e0b\u5b57\u6bb5\uff1a<\/p>\n

id\uff1a\u4e3b\u952e\uff0c\u81ea\u589e\u957f\u3002<\/p>\n

name\uff1a\u5b66\u751f\u59d3\u540d\uff0cvarchar\u7c7b\u578b\uff0c\u957f\u5ea6\u4e3a20\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

age\uff1a\u5b66\u751f\u5e74\u9f84\uff0cint\u7c7b\u578b\u3002<\/p>\n

sex\uff1a\u5b66\u751f\u6027\u522b\uff0cvarchar\u7c7b\u578b\uff0c\u957f\u5ea6\u4e3a2\u3002<\/p>\n

t_score\uff1aCET-4\u8003\u8bd5\u6210\u7ee9\uff0cint\u7c7b\u578b\u3002<\/p>\n

total_score\uff1a\u5b66\u751f\u6210\u7ee9\u603b\u548c\uff0cint\u7c7b\u578b\u3002<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u7684SQL\u8bed\u53e5\u521b\u5efa\u8be5\u6570\u636e\u8868\uff1a<\/p>\n

CREATE TABLE \nstudent\n (\n  \nid\n int(11) NOT NULL AUTO_INCREMENT COMMENT '\u81ea\u589eID',\n  \nname\n varchar(20) NOT NULL DEFAULT '' COMMENT '\u5b66\u751f\u59d3\u540d',\n  \nage\n int(11) NOT NULL DEFAULT '0' COMMENT '\u5b66\u751f\u5e74\u9f84',\n  \nsex\n varchar(2) NOT NULL DEFAULT '' COMMENT '\u5b66\u751f\u6027\u522b',\n  \nt_score\n int(11) NOT NULL DEFAULT '0' COMMENT 'CET-4\u8003\u8bd5\u6210\u7ee9',\n  \ntotal_score\n int(11) NOT NULL DEFAULT '0' COMMENT '\u5b66\u751f\u6210\u7ee9\u603b\u548c',\n  PRIMARY KEY (\nid\n)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='\u5b66\u751f\u4fe1\u606f\u8868';<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6211\u4eec\u968f\u673a\u63d2\u5165\u4e00\u4e9b\u6570\u636e\uff0c\u7528\u4e8e\u540e\u7eed\u6d4b\u8bd5\uff1a<\/p>\n
INSERT INTO \nstudent\n (\nname\n, \nage\n, \nsex\n, \nt_score\n, \ntotal_score\n) VALUES ('\u5f20\u4e09', 20, '\u7537', 550, 750), ('\u674e\u56db', 19, '\u5973', 530, 700), ('\u738b\u4e94', 22, '\u7537', 610, 820), ('\u8d75\u516d', 23, '\u5973', 590, 780), ('\u94b1\u4e03', 21, '\u7537', 500, 730);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e8c\u3001\u5728ThinkPHP\u4e2d\u8c03\u7528MySQL\u5b57\u6bb5<\/strong><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5\uff0c\u5728ThinkPHP\u4e2d\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u589e\u3001\u5220\u3001\u6539\u3001\u67e5\u7b49\u64cd\u4f5c\u3002\u5728\u8fdb\u884c\u67e5\u8be2\u64cd\u4f5c\u65f6\uff0c\u6211\u4eec\u9700\u8981\u8c03\u7528MySQL\u5b57\u6bb5\u3002\u4ee5\u4e0b\u5217\u51fa\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u8c03\u7528\u65b9\u5f0f\uff1a<\/p>\n
1.\u4f7f\u7528\u6570\u7ec4\u65b9\u5f0f\u76f4\u63a5\u8c03\u7528\uff1a<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u65b9\u5f0f\u6765\u76f4\u63a5\u8c03\u7528MySQL\u5b57\u6bb5\u3002\u67e5\u8be2student\u8868\u4e2d\u7684id\u3001name\u3001age\u7b49\u5b57\u6bb5\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n
$studentList = Db::name(‘student’)->field([‘id’, ‘name’, ‘age’])->select();<\/p>\n
$field\u53c2\u6570\u4e3a\u53ef\u9009\uff0c\u4e0d\u4f20\u5165\u8be5\u53c2\u6570\u8868\u793a\u67e5\u8be2\u6240\u6709\u5b57\u6bb5\u3002<\/p>\n
2.\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u5f0f\u8c03\u7528\uff1a<\/p>\n
\u7b2c\u4e8c\u79cd\u65b9\u5f0f\u4e3a\u76f4\u63a5\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u5f0f\u8c03\u7528MySQL\u5b57\u6bb5\uff0c\u4f8b\u5982\uff1a<\/p>\n
\/\/\u67e5\u8be2id\uff0cname\u548cage\u5b57\u6bb5
$studentList = Db::name(‘student’)->field(‘id, name, age’)->select();<\/p>\n
\/\/\u67e5\u8be2t_score\uff0ctotal_score\u548c\u603b\u5206\u5b57\u6bb5\uff08\u603b\u5206\u4e3at_score\u548ctotal_score\u76f8\u52a0\u7684\u7ed3\u679c\uff09
$studentList = Db::name(‘student’)->field(‘t_score, total_score, (t_score+total_score) as score’)->select();<\/p>\n
\u5728\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u5f0f\u8c03\u7528MySQL\u5b57\u6bb5\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7as\u4e3a\u67d0\u5b57\u6bb5\u522b\u540d\uff08alias\uff09\u3002<\/p>\n
3.\u4f7f\u7528\u6a21\u578b\u65b9\u5f0f\u8c03\u7528\uff1a<\/p>\n
\u4f7f\u7528\u6a21\u578b\u65b9\u5f0f\u8c03\u7528\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5148\u5b9a\u4e49\u6a21\u578b\u7c7b\u3002\u4e00\u4e2a\u540d\u4e3aStudent\u7684\u6a21\u578b\u7c7b\u53ef\u4ee5\u6839\u636estudent\u8868\u7684\u7ed3\u6784\u8fdb\u884c\u5b9a\u4e49<\/p>\n
namespace appcommonmodel;<\/p>\n
use thinkModel;<\/p>\n
class Student extends Model
{<\/p>\n
\/\/\u5b9a\u4e49\u8868\u540d\u548c\u4e3b\u952e\nprotected $table = 'student';\nprotected $pk = 'id';<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
}<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Student\u6a21\u578b\u7c7b\u76f4\u63a5\u64cd\u4f5c\u67e5\u8be2\uff1a<\/p>\n
\/\/\u83b7\u53d6\u6240\u6709\u5b66\u751f\u5217\u8868\u4fe1\u606f
$studentList = Student::field([‘id’, ‘name’, ‘age’])->select();<\/p>\n
\/\/\u83b7\u53d6\u5b66\u751f\u59d3\u540d\u548c\u603b\u5206
$studentList = Student::field(‘name, (t_score+total_score) as score’)->select();<\/p>\n
\u901a\u8fc7\u6a21\u578b\u65b9\u5f0f\u8c03\u7528MySQL\u5b57\u6bb5\u53ef\u4ee5\u4f7f\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u4f18\u96c5\uff0c\u800c\u4e14\u80fd\u591f\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u95ee\u9898\u3002<\/p>\n
\u4e09\u3001\u5728ThinkPHP\u4e2d\u8fdb\u884cMySQL\u5b57\u6bb5\u522b\u540d\u64cd\u4f5c<\/strong><\/p>\n
\u5728\u6267\u884cSQL\u67e5\u8be2\u8bed\u53e5\u65f6\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u4f7f\u7528\u5217\u522b\u540d\u4f5c\u4e3a\u8fd4\u56de\u7ed3\u679c\u7684\u6807\u8bc6\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u8981\u5728\u67e5\u8be2\u7ed3\u679c\u4e2d\u663e\u793a\u5b66\u751f\u59d3\u540d\u548c\u6bd4\u8be5\u540d\u5b66\u751f\u5206\u6570\u9ad8\u7684\u5176\u4ed6\u5b66\u751f\u6570\u76ee\uff0c\u6211\u4eec\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u522b\u540d\uff08alias\uff09\uff1a<\/p>\n
$studentList = Db::name('student')-&gt;field('name, (SELECT count(*) FROM student as b WHERE b.total_score&gt;s.total_score) as rank')-&gt;alias('s')-&gt;select();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u901a\u8fc7\u5b50\u67e5\u8be2\u548calias\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5f97\u5230\u4eba\u540d\u548c\u6392\u540d\uff0c\u5176\u5bf9\u5e94\u7684SQL\u8bed\u53e5\u4e3a\uff1a<\/p>\n
SELECT name, (SELECT count(*) FROM student as b WHERE b.total_score&gt;s.total_score) as rank FROM student s<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728ThinkPHP\u4e2d\uff0c\u901a\u8fc7\u4f7f\u7528alias\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u4e3aMySQL\u5b57\u6bb5\u8bbe\u7f6e\u6307\u5b9a\u7684\u522b\u540d\uff0c\u4ee5\u8fbe\u5230\u66f4\u9ad8\u6548\u7684\u67e5\u8be2\u64cd\u4f5c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u4e2d\u600e\u4e48\u8c03\u7528\u5b57\u6bb5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u521b\u5efa\u6570\u636e\u5e93\u8868\u548c\u6570\u636e \u5728\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u5148\u521b\u5efa\u6570\u636e\u5e93\u53ca\u76f8\u5e94\u7684\u6570\u636e\u8868\u3002\u6211\u4eec\u5047\u8bbe\u9700\u8981\u5f00\u53d1\u4e00\u4e2a\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf\uff0c\u5176\u4e2d\u9700\u8981\u5efa\u7acb\u4e00\u4e2a\u540d\u4e3astudent\u7684\u6570\u636e\u5e93\u8868\uff0c\u4ee5\u5b58\u50a8\u5b66\u751f\u7684\u57fa\u672c\u4fe1\u606f\u3002\u8868\u5305\u542b\u4ee5\u4e0b\u5b57\u6bb5\uff1a id\uff1a\u4e3b\u952e\uff0c\u81ea\u589e\u957f\u3002 name\uff1a\u5b66\u751f\u59d3\u540d\uff0cvarchar\u7c7b\u578b\uff0c\u957f\u5ea6\u4e3a20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b age\uff1a\u5b66\u751f\u5e74\u9f84\uff0cint\u7c7b\u578b\u3002 sex\uff1a\u5b66\u751f\u6027\u522b\uff0cvarchar\u7c7b\u578b\uff0c\u957f\u5ea6\u4e3a2\u3002 t_score\uff1aCET-4\u8003\u8bd5\u6210\u7ee9\uff0cint\u7c7b\u578b\u3002 total_score\uff1a\u5b66\u751f\u6210\u7ee9\u603b\u548c\uff0cint\u7c7b\u578b\u3002 \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u7684SQL\u8bed\u53e5\u521b\u5efa\u8be5\u6570\u636e\u8868\uff1a CREATE TABLE  student  (    id  int(11) NOT NULL AUTO_INCREMENT COMMENT ‘\u81ea\u589eID’,    name  varchar(20) NOT NULL DEFAULT ” COMMENT ‘\u5b66\u751f\u59d3\u540d’,    age  int(11) NOT NULL DEFAULT ‘0’ COMMENT ‘\u5b66\u751f\u5e74\u9f84’,    sex  varchar(2) NOT NULL DEFAULT ” COMMENT ‘\u5b66\u751f\u6027\u522b’,    t_score  int(11) NOT NULL DEFAULT ‘0’ COMMENT ‘CET-4\u8003\u8bd5\u6210\u7ee9’,    total_score  int(11) NOT NULL DEFAULT ‘0’ COMMENT ‘\u5b66\u751f\u6210\u7ee9\u603b\u548c’,   PRIMARY KEY ( id ) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT=’\u5b66\u751f\u4fe1\u606f\u8868’; \u767b\u5f55\u540e\u590d\u5236 \u6211\u4eec\u968f\u673a\u63d2\u5165\u4e00\u4e9b\u6570\u636e\uff0c\u7528\u4e8e\u540e\u7eed\u6d4b\u8bd5\uff1a INSERT INTO  student  ( name ,  age ,  sex ,  t_score ,  total_score ) VALUES (‘\u5f20\u4e09’, 20, ‘\u7537’, 550, 750), (‘\u674e\u56db’, 19, ‘\u5973’, 530, 700), (‘\u738b\u4e94’, 22, ‘\u7537’, 610, 820), (‘\u8d75\u516d’, 23, ‘\u5973’, 590, 780), (‘\u94b1\u4e03’, 21, ‘\u7537’, 500, 730); \u767b\u5f55\u540e\u590d\u5236 \u4e8c\u3001\u5728ThinkPHP\u4e2d\u8c03\u7528MySQL\u5b57\u6bb5 \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Db\u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5\uff0c\u5728ThinkPHP\u4e2d\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u589e\u3001\u5220\u3001\u6539\u3001\u67e5\u7b49\u64cd\u4f5c\u3002\u5728\u8fdb\u884c\u67e5\u8be2\u64cd\u4f5c\u65f6\uff0c\u6211\u4eec\u9700\u8981\u8c03\u7528MySQL\u5b57\u6bb5\u3002\u4ee5\u4e0b\u5217\u51fa\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u8c03\u7528\u65b9\u5f0f\uff1a 1.\u4f7f\u7528\u6570\u7ec4\u65b9\u5f0f\u76f4\u63a5\u8c03\u7528\uff1a \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u65b9\u5f0f\u6765\u76f4\u63a5\u8c03\u7528MySQL\u5b57\u6bb5\u3002\u67e5\u8be2student\u8868\u4e2d\u7684id\u3001name\u3001age\u7b49\u5b57\u6bb5\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\uff1a […]<\/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-23131","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23131","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=23131"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23131\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}