{"id":220,"date":"2026-02-01T17:38:39","date_gmt":"2026-02-01T09:38:39","guid":{"rendered":"http:\/\/47.100.165.17\/wordpress\/?p=220"},"modified":"2026-03-02T22:20:08","modified_gmt":"2026-03-02T14:20:08","slug":"%e3%80%90mysql%e3%80%91%e8%a7%86%e5%9b%be%e3%80%81%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e4%b8%8e%e8%a7%a6%e5%8f%91%e5%99%a8%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=220","title":{"rendered":"\u3010MySQL\u3011\u89c6\u56fe\u3001\u5b58\u50a8\u8fc7\u7a0b\u4e0e\u89e6\u53d1\u5668\u8be6\u89e3"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"cqdVD\">1 \u8be6\u89e3\u89c6\u56fe\u7684\u521b\u5efa\u4e0e\u5e94\u7528<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"cnmhV\">1.1 \u89c6\u56fe\u7684\u6838\u5fc3\u7528\u9014<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc4fd9f5c\">\u89c6\u56fe\u662f\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u57fa\u7840\u8868\u6784\u5efa\u7684\u865a\u62df\u8868\uff0c\u5176\u6570\u636e\u6765\u6e90\u4e8e\u57fa\u7840\u8868\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u81ea\u8eab\u4e0d\u5b58\u50a8\u5b9e\u9645\u6570\u636e\u3002\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e0e\u7ba1\u7406\u4e2d\uff0c\u89c6\u56fe\u7684\u6838\u5fc3\u4ef7\u503c\u4f53\u73b0\u5728\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b80\u5316\u67e5\u8be2\u64cd\u4f5c<\/strong>\uff1a\u5c06\u590d\u6742\u7684SQL\u67e5\u8be2\u903b\u8f91\u5c01\u88c5\u4e3a\u89c6\u56fe\uff0c\u7528\u6237\u65e0\u9700\u91cd\u590d\u7f16\u5199\u590d\u6742\u8bed\u53e5\uff0c\u53ea\u9700\u8c03\u7528\u89c6\u56fe\u5373\u53ef\u83b7\u53d6\u76ee\u6807\u6570\u636e\uff0c\u964d\u4f4e\u67e5\u8be2\u7f16\u5199\u96be\u5ea6\u7684\u540c\u65f6\u63d0\u5347\u6548\u7387\u3002<\/li>\n\n\n\n<li><strong>\u589e\u5f3a\u6570\u636e\u5b89\u5168\u6027<\/strong>\uff1a\u901a\u8fc7\u89c6\u56fe\u53ef\u9650\u5236\u7528\u6237\u5bf9\u654f\u611f\u5b57\u6bb5\u6216\u8868\u7684\u76f4\u63a5\u8bbf\u95ee\uff0c\u4ec5\u66b4\u9732\u975e\u654f\u611f\u4fe1\u606f\uff0c\u65e2\u80fd\u4fdd\u62a4\u6570\u636e\u9690\u79c1\uff0c\u53c8\u80fd\u9690\u85cf\u5e95\u5c42\u6570\u636e\u5e93\u7ed3\u6784\uff0c\u63d0\u5347\u7cfb\u7edf\u7075\u6d3b\u6027\u3002<\/li>\n\n\n\n<li><strong>\u4fc3\u8fdb\u4ee3\u7801\u590d\u7528<\/strong>\uff1a\u5c06\u9ad8\u9891\u4f7f\u7528\u7684\u590d\u6742\u67e5\u8be2\u5b9a\u4e49\u4e3a\u89c6\u56fe\uff0c\u53ef\u5728\u591a\u4e2a\u573a\u666f\u4e2d\u91cd\u590d\u8c03\u7528\uff0c\u51cf\u5c11\u91cd\u590d\u5f00\u53d1\u5de5\u4f5c\uff0c\u964d\u4f4e\u56e0\u91cd\u590d\u7f16\u5199\u5bfc\u81f4\u7684\u9519\u8bef\u98ce\u9669\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"R9x9I\">1.2 \u89c6\u56fe\u7684\u5b9e\u64cd\u6b65\u9aa4<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u521b\u5efa\u89c6\u56fe\u524d\u7684\u51c6\u5907\uff1a\u521b\u5efa\u6d4b\u8bd5\u8868\u5e76\u63d2\u5165\u6570\u636e<\/strong><br>\u9996\u5148\u901a\u8fc7\u4ee5\u4e0bSQL\u8bed\u53e5\u521b\u5efa\u6d4b\u8bd5\u8868<code>student_info<\/code>\u5e76\u63d2\u5165\u793a\u4f8b\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"OIRi4\" class=\"wp-block-code\"><code>use martin; -- \u6307\u5b9a\u6570\u636e\u5e93\n\n-- \u521b\u5efa\u5b66\u751f\u4fe1\u606f\u8868\ncreate table student_info (\n  id int auto_increment primary key,\n  name varchar(10),\n  address varchar(10),\n  score int\n);\n\n-- \u63d2\u5165\u6d4b\u8bd5\u6570\u636e\ninsert into student_info(name, address, score) \nvalues \n  ('a', 'beijing', 90),\n  ('b', 'shanghai', 88),\n  ('c', 'beijing', 86),\n  ('d', 'shanghai', 92);<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u521b\u5efa\u89c6\u56fe<\/strong><br>\u4ee5\u201c\u7b5b\u9009\u6210\u7ee9\u226590\u5206\u7684\u5b66\u751f\u201d\u4e3a\u4f8b\uff0c\u521b\u5efa\u89c6\u56fe<code>view_test<\/code>\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"H1cBt\" class=\"wp-block-code\"><code>CREATE VIEW view_test AS \nSELECT * FROM student_info WHERE score &gt;= 90;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u67e5\u8be2\u89c6\u56fe\u6570\u636e<\/strong><br>\u89c6\u56fe\u7684\u67e5\u8be2\u65b9\u5f0f\u4e0e\u666e\u901a\u8868\u4e00\u81f4\uff0c\u4f8b\u5982\u67e5\u8be2<code>view_test<\/code>\u4e2d\u7684\u6240\u6709\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"n6Puo\" class=\"wp-block-code\"><code>select * from view_test;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u67e5\u770b\u89c6\u56fe\u7ed3\u6784<\/strong><br>\u901a\u8fc7<code>show create view<\/code>\u8bed\u53e5\u53ef\u67e5\u770b\u89c6\u56fe\u7684\u521b\u5efa\u8bed\u53e5\uff08\u542b\u5b9a\u4e49\u903b\u8f91\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"mVsjD\" class=\"wp-block-code\"><code>show create view view_test;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5220\u9664\u89c6\u56fe<\/strong><br>\u82e5\u9700\u79fb\u9664\u89c6\u56fe\uff0c\u4f7f\u7528<code>drop view<\/code>\u8bed\u53e5\uff08\u4ec5\u5220\u9664\u89c6\u56fe\u5b9a\u4e49\uff0c\u4e0d\u5f71\u54cd\u57fa\u7840\u8868\u6570\u636e\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"nOT4q\" class=\"wp-block-code\"><code>drop view view_test; <\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"hUP0h\">2 \u5b58\u50a8\u8fc7\u7a0b\u7684\u4f7f\u7528\u8be6\u89e3<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"MoLR8\">2.1 \u5b58\u50a8\u8fc7\u7a0b\u7684\u57fa\u7840\u64cd\u4f5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0023243a\">\u5b58\u50a8\u8fc7\u7a0b\u662f\u9884\u7f16\u8bd1\u5e76\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u4e00\u7ec4SQL\u8bed\u53e5\u96c6\u5408\uff0c\u53ef\u901a\u8fc7\u8c03\u7528\u540d\u79f0\u91cd\u590d\u6267\u884c\uff0c\u9002\u7528\u4e8e\u590d\u6742\u4e1a\u52a1\u903b\u8f91\u7684\u5c01\u88c5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u793a\u4f8b\uff1a\u521b\u5efa\u4e00\u4e2a\u7edf\u8ba1<code>mysql.user<\/code>\u8868\u4e2d\u7528\u6237\u6570\u91cf\u7684\u5b58\u50a8\u8fc7\u7a0b<code>user_count_proc<\/code>\uff0c\u5e76\u901a\u8fc7\u8f93\u51fa\u53c2\u6570\u8fd4\u56de\u7ed3\u679c\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"M4Rdp\" class=\"wp-block-code\"><code>delimiter ;; -- \u4fee\u6539\u5206\u9694\u7b26\uff0c\u907f\u514d\u4e0e\u8bed\u53e5\u5185\u5206\u53f7\u51b2\u7a81\ncreate procedure user_count_proc(out s int)\nbegin\n  select count(*) into s from mysql.user; -- \u5c06\u67e5\u8be2\u7ed3\u679c\u5b58\u5165\u8f93\u51fa\u53c2\u6570s\nend ;;\ndelimiter ; -- \u6062\u590d\u9ed8\u8ba4\u5206\u9694\u7b26<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u901a\u8fc7<code>call<\/code>\u8bed\u53e5\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5e76\u4f7f\u7528\u7528\u6237\u53d8\u91cf\u63a5\u6536\u8f93\u51fa\u7ed3\u679c\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"u3AER\" class=\"wp-block-code\"><code>call user_count_proc(@s); -- \u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\uff0c\u7ed3\u679c\u5b58\u5165\u53d8\u91cf@s\nselect @s; -- \u67e5\u770b\u53d8\u91cf\u503c\uff08\u5373\u7528\u6237\u6570\u91cf\uff09<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u67e5\u770b\u5b58\u50a8\u8fc7\u7a0b\u5b9a\u4e49<\/strong><br>\u4f7f\u7528<code>show create procedure<\/code>\u53ef\u67e5\u770b\u5b58\u50a8\u8fc7\u7a0b\u7684\u5b8c\u6574\u5b9a\u4e49\uff08\u52a0<code>\\G<\/code>\u53ef\u4f18\u5316\u8f93\u51fa\u683c\u5f0f\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"d2E3K\" class=\"wp-block-code\"><code>show create procedure user_count_proc \\G<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u82e5\u9700\u79fb\u9664\u5b58\u50a8\u8fc7\u7a0b\uff0c\u4f7f\u7528<code>drop procedure<\/code>\u8bed\u53e5\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"VPitb\" class=\"wp-block-code\"><code>drop procedure user_count_proc;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"b9wRy\">2.2 \u5b58\u50a8\u8fc7\u7a0b\u5b9e\u7528\u6848\u4f8b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue81d94ed\">\u4ee5\u201c\u6279\u91cf\u63d2\u5165\u6570\u636e\u201d\u4e3a\u4f8b\uff0c\u6f14\u793a\u5b58\u50a8\u8fc7\u7a0b\u7684\u5b9e\u9645\u5e94\u7528\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa41\uff1a\u521b\u5efa\u6d4b\u8bd5\u8868<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"ACZdZ\" class=\"wp-block-code\"><code>use martin;\nCREATE TABLE `t1` (\n  `id` int NOT NULL AUTO_INCREMENT,\n  `a` varchar(20) DEFAULT NULL,\n  `b` int DEFAULT NULL,\n  `c` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, -- \u81ea\u52a8\u8bb0\u5f55\u63d2\u5165\u65f6\u95f4\n  PRIMARY KEY (`id`)\n) ENGINE=InnoDB CHARSET=utf8mb4 ;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa42\uff1a\u521b\u5efa\u6279\u91cf\u63d2\u5165\u6570\u636e\u7684\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u5b9a\u4e49\u5b58\u50a8\u8fc7\u7a0b<code>insert_t1<\/code>\uff0c\u901a\u8fc7\u5faa\u73af\u5411<code>t1<\/code>\u8868\u63d2\u516510000\u6761\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"GqvcN\" class=\"wp-block-code\"><code>drop procedure if exists insert_t1; -- \u82e5\u5b58\u50a8\u8fc7\u7a0b\u5df2\u5b58\u5728\u5219\u5148\u5220\u9664\ndelimiter ;;\ncreate procedure insert_t1()       \nbegin\n  declare i int; -- \u58f0\u660e\u5faa\u73af\u53d8\u91cf\n  set i = 1; -- \u521d\u59cb\u5316\u53d8\u91cf\n  while(i &lt;= 10000) do -- \u5faa\u73af\u6761\u4ef6\uff1a\u63d2\u516510000\u6761\u6570\u636e\n    insert into t1(a, b) values(concat('a_', i), i); -- \u63d2\u5165\u6570\u636e\uff08a\u5b57\u6bb5\u4e3a\"a_\u5e8f\u53f7\"\uff0cb\u5b57\u6bb5\u4e3a\u5e8f\u53f7\uff09\n    set i = i + 1; -- \u53d8\u91cf\u81ea\u589e\n  end while;\nend;;\ndelimiter ;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa43\uff1a\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\u5e76\u9a8c\u8bc1\u7ed3\u679c<\/strong><br>\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u540e\uff0c\u901a\u8fc7\u67e5\u8be2\u786e\u8ba4\u6570\u636e\u63d2\u5165\u60c5\u51b5\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"H1k9D\" class=\"wp-block-code\"><code>call insert_t1(); -- \u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\n\n-- \u9a8c\u8bc11\uff1a\u67e5\u8be2\u603b\u6570\u636e\u91cf\nselect count(*) from t1; -- \u7ed3\u679c\u5e94\u4e3a10000\u884c\n\n-- \u9a8c\u8bc12\uff1a\u67e5\u770b\u524d10\u884c\u6570\u636e\nselect * from t1 limit 10;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"nhZgk\">2.3 \u5b58\u50a8\u8fc7\u7a0b\u7684\u5c40\u9650\u6027<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8252d05f\">\u5c3d\u7ba1\u5b58\u50a8\u8fc7\u7a0b\u80fd\u7b80\u5316\u590d\u6742\u64cd\u4f5c\uff0c\u4f46\u4e5f\u5b58\u5728\u660e\u663e\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ef4\u62a4\u6210\u672c\u9ad8<\/strong>\uff1a\u903b\u8f91\u590d\u6742\u7684\u5b58\u50a8\u8fc7\u7a0b\u96be\u4ee5\u8c03\u8bd5\u548c\u4fee\u6539\uff0c\u540e\u671f\u7ef4\u62a4\u96be\u5ea6\u5927\u3002<\/li>\n\n\n\n<li><strong>\u8d44\u6e90\u6d88\u8017\u5927<\/strong>\uff1a\u5b58\u50a8\u8fc7\u7a0b\u9700\u5360\u7528\u6570\u636e\u5e93\u670d\u52a1\u5668\u8d44\u6e90\uff0c\u9ad8\u9891\u8c03\u7528\u53ef\u80fd\u5f71\u54cd\u6027\u80fd\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u79fb\u690d\u6027\u5dee<\/strong>\uff1a\u4e0d\u540c\u6570\u636e\u5e93\uff08\u5982MySQL\u3001Oracle\uff09\u7684\u5b58\u50a8\u8fc7\u7a0b\u8bed\u6cd5\u5b58\u5728\u5dee\u5f02\uff0c\u8fc1\u79fb\u65f6\u9700\u5927\u91cf\u4fee\u6539\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"VnxfX\">3 \u89e6\u53d1\u5668\u7684\u521b\u5efa\u4e0e\u5e94\u7528\u8be6\u89e3<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"PUAcG\">3.1 \u89e6\u53d1\u5668\u7684\u521b\u5efa\u4e0e\u4f7f\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub99acba7\">\u89e6\u53d1\u5668\u662f\u6570\u636e\u5e93\u4e2d\u81ea\u52a8\u6267\u884c\u7684\u7279\u6b8a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5f53\u6307\u5b9a\u8868\u53d1\u751f<code>INSERT<\/code>\/<code>UPDATE<\/code>\/<code>DELETE<\/code>\u64cd\u4f5c\u65f6\u81ea\u52a8\u89e6\u53d1\uff0c\u5e38\u7528\u4e8e\u6570\u636e\u540c\u6b65\u3001\u65e5\u5fd7\u8bb0\u5f55\u7b49\u573a\u666f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa41\uff1a\u521b\u5efa\u6d4b\u8bd5\u8868<\/strong><br>\u793a\u4f8b\uff1a\u521b\u5efa\u7ed3\u6784\u76f8\u540c\u7684<code>class_info_01<\/code>\u548c<code>class_info_02<\/code>\u8868\uff0c\u7528\u4e8e\u6f14\u793a\u89e6\u53d1\u5668\u7684\u6570\u636e\u540c\u6b65\u529f\u80fd\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"kSowR\" class=\"wp-block-code\"><code>use martin;\ncreate table class_info_01(\n  id int,\n  name varchar(10)\n);\ncreate table class_info_02 like class_info_01; -- \u590d\u5236class_info_01\u7684\u7ed3\u6784<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa42\uff1a\u521b\u5efa\u89e6\u53d1\u5668<\/strong><br>\u5b9a\u4e49\u89e6\u53d1\u5668<code>insert_class_info<\/code>\uff0c\u5b9e\u73b0\u201c\u5411<code>class_info_01<\/code>\u63d2\u5165\u6570\u636e\u65f6\uff0c\u81ea\u52a8\u540c\u6b65\u5230<code>class_info_02<\/code>\u201d\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"YIOlt\" class=\"wp-block-code\"><code>create trigger insert_class_info \nafter insert on class_info_01 -- \u89e6\u53d1\u65f6\u673a\uff1a\u63d2\u5165\u64cd\u4f5c\u540e\uff1b\u89e6\u53d1\u5bf9\u8c61\uff1aclass_info_01\u8868\nfor each row -- \u884c\u7ea7\u89e6\u53d1\uff08\u6bcf\u63d2\u5165\u4e00\u884c\u5c31\u6267\u884c\u4e00\u6b21\uff09\ninsert into class_info_02 (id, name) values (new.id, new.name); -- \u63d2\u5165\u65b0\u6570\u636e\u5230class_info_02\uff08new\u4ee3\u8868\u65b0\u63d2\u5165\u7684\u884c\uff09<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa43\uff1a\u6d4b\u8bd5\u89e6\u53d1\u5668<\/strong><br>\u5411<code>class_info_01<\/code>\u63d2\u5165\u6570\u636e\u540e\uff0c\u68c0\u67e5<code>class_info_02<\/code>\u662f\u5426\u540c\u6b65\u66f4\u65b0\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"LVc0l\" class=\"wp-block-code\"><code>-- \u5411class_info_01\u63d2\u5165\u6d4b\u8bd5\u6570\u636e\ninsert into class_info_01 values (1, 'a');\n\n-- \u67e5\u8be2class_info_02\uff0c\u9a8c\u8bc1\u662f\u5426\u540c\u6b65\nselect * from class_info_02; -- \u5e94\u8fd4\u56deid=1\u3001name='a'\u7684\u8bb0\u5f55<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"bbklD\">3.2 \u89e6\u53d1\u5668\u7684\u5178\u578b\u5e94\u7528\u573a\u666f<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u590d\u5236\u4e0e\u540c\u6b65<\/strong>\uff1a\u5982\u4e0a\u8ff0\u6848\u4f8b\uff0c\u5b9e\u73b0\u4e24\u4e2a\u8868\u7684\u6570\u636e\u5b9e\u65f6\u540c\u6b65\u3002<\/li>\n\n\n\n<li><strong>\u5ba1\u8ba1\u8ddf\u8e2a<\/strong>\uff1a\u8bb0\u5f55\u5bf9\u654f\u611f\u8868\u7684\u64cd\u4f5c\uff08\u5982\u8c01\u4fee\u6539\u4e86\u6570\u636e\u3001\u4f55\u65f6\u4fee\u6539\uff09\uff0c\u4fbf\u4e8e\u8ffd\u6eaf\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5907\u4efd<\/strong>\uff1a\u81ea\u52a8\u5907\u4efd\u88ab\u5220\u9664\u6216\u4fee\u6539\u7684\u6570\u636e\u5230\u5386\u53f2\u8868\uff0c\u9632\u6b62\u8bef\u64cd\u4f5c\u5bfc\u81f4\u7684\u6570\u636e\u4e22\u5931\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"dZWPa\">4 \u7efc\u5408\u6848\u4f8b\u6f14\u793a<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ua207b6a8\">\u4ee5\u201c\u89c6\u56fe+\u5b58\u50a8\u8fc7\u7a0b+\u89e6\u53d1\u5668\u201d\u7684\u8054\u52a8\u573a\u666f\u4e3a\u4f8b\uff0c\u5b8c\u6574\u6f14\u793a\u4e09\u8005\u7684\u534f\u540c\u4f7f\u7528\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tjUGV\">4.1 \u573a\u666f\u8bf4\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u556fe70b\">\u901a\u8fc7\u89e6\u53d1\u5668\u5b9e\u73b0<code>test_a<\/code>\u8868\u4e0e<code>test_b<\/code>\u8868\u7684\u6570\u636e\u540c\u6b65\uff0c\u901a\u8fc7\u5b58\u50a8\u8fc7\u7a0b\u5411<code>test_a<\/code>\u6279\u91cf\u63d2\u5165\u6570\u636e\uff0c\u6700\u540e\u901a\u8fc7\u89c6\u56fe\u7b5b\u9009<code>test_b<\/code>\u4e2d\u7684\u90e8\u5206\u6570\u636e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"AYQtj\">4.2 \u5177\u4f53\u6b65\u9aa4<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa41\uff1a\u521b\u5efa\u6d4b\u8bd5\u8868<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"XtyAx\" class=\"wp-block-code\"><code>use martin;\ncreate table test_a(\n  id int,\n  name varchar(10)\n);\ncreate table test_b like test_a; -- \u590d\u5236test_a\u7ed3\u6784\uff0c\u7528\u4e8e\u540c\u6b65\u6570\u636e<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa42\uff1a\u521b\u5efa\u540c\u6b65\u89e6\u53d1\u5668<\/strong><br>\u5b9a\u4e49\u89e6\u53d1\u5668<code>a_to_b<\/code>\uff0c\u5b9e\u73b0<code>test_a<\/code>\u63d2\u5165\u6570\u636e\u65f6\u81ea\u52a8\u540c\u6b65\u5230<code>test_b<\/code>\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"IkqDy\" class=\"wp-block-code\"><code>create trigger a_to_b \nafter insert on test_a \nfor each row \ninsert into test_b (id, name) values (new.id, new.name);<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa43\uff1a\u521b\u5efa\u6279\u91cf\u63d2\u5165\u7684\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u5b9a\u4e49\u5b58\u50a8\u8fc7\u7a0b<code>insert_test_a<\/code>\uff0c\u5411<code>test_a<\/code>\u63d2\u516510\u4e07\u6761\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"tpQFO\" class=\"wp-block-code\"><code>delimiter ;;\ncreate procedure insert_test_a()       \nbegin\n  declare i int;                  \n  set i = 1;                       \n  while(i &lt;= 100000) do\t\t\t      \n    insert into test_a(id, name) values(i, concat('a_', i)); \n    set i = i + 1;\n  end while;\nend;;\ndelimiter ;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa44\uff1a\u521b\u5efa\u89c6\u56fe\u7b5b\u9009\u6570\u636e<\/strong><br>\u57fa\u4e8e<code>test_b<\/code>\u8868\uff0c\u521b\u5efa\u89c6\u56fe<code>view_test_b<\/code>\u7b5b\u9009<code>id&lt;10000<\/code>\u7684\u8bb0\u5f55\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"tWJ6g\" class=\"wp-block-code\"><code>CREATE VIEW view_test_b AS \nSELECT * FROM test_b WHERE id &lt; 10000;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"u6KFM\">5 \u501f\u52a9ChatGPT\u5feb\u901f\u521b\u5efa\u89c6\u56fe\u3001\u5b58\u50a8\u8fc7\u7a0b\u4e0e\u89e6\u53d1\u5668<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u50bd5dce\">\u5229\u7528ChatGPT\u53ef\u5feb\u901f\u751f\u6210\u7b26\u5408\u9700\u6c42\u7684SQL\u8bed\u53e5\uff0c\u964d\u4f4e\u7f16\u5199\u96be\u5ea6\u3002\u4ee5\u4e0b\u4e3a\u5177\u4f53\u793a\u4f8b\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"WCMdC\">5.1 \u7528ChatGPT\u521b\u5efa\u89c6\u56fe<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u40c7356c\"><strong>\u9700\u6c42<\/strong>\uff1a\u57fa\u4e8e\u5546\u54c1\u8868<code>products<\/code>\uff0c\u521b\u5efa\u89c6\u56fe<code>view_product_expiration_2023_05_20<\/code>\uff0c\u4ec5\u5305\u542b\u8fc7\u671f\u65e5\u671f\u4e3a2023-05-20\u7684\u5546\u54c1\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa41\uff1a\u521b\u5efa\u5546\u54c1\u8868\u5e76\u63d2\u5165\u6570\u636e<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"JRsfK\" class=\"wp-block-code\"><code>CREATE TABLE products (\n  id INT PRIMARY KEY AUTO_INCREMENT,\n  name VARCHAR(100) NOT NULL COMMENT '\u5546\u54c1\u540d\u79f0',\n  description TEXT COMMENT '\u5546\u54c1\u63cf\u8ff0',\n  price DECIMAL(10, 2) NOT NULL COMMENT '\u4ef7\u683c',\n  stock_quantity INT NOT NULL DEFAULT 0 COMMENT '\u5e93\u5b58\u6570\u91cf',\n  production_date DATE COMMENT '\u751f\u4ea7\u65e5\u671f',\n  expiration_date DATE COMMENT '\u8fc7\u671f\u65e5\u671f'\n);\n\n-- \u63d2\u5165\u793a\u4f8b\u6570\u636e\nINSERT INTO products (name, description, price, stock_quantity, production_date, expiration_date) VALUES\n('\u82f9\u679c\u624b\u673a', '\u6700\u65b0\u6b3e\u667a\u80fd\u624b\u673a', 8999.00, 100, '2023-01-15', NULL),\n('\u725b\u5976', '\u4f4e\u8102\u7eaf\u725b\u5976', 5.90, 500, '2023-05-10', '2023-06-10'),\n('\u9762\u5305', '\u5168\u9ea6\u9762\u5305', 8.50, 200, '2023-05-15', '2023-05-20'),\n('\u7535\u8111', '\u9ad8\u6027\u80fd\u7b14\u8bb0\u672c\u7535\u8111', 12999.00, 50, '2023-02-01', NULL);<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa42\uff1a\u901a\u8fc7ChatGPT\u751f\u6210\u89c6\u56fe\u521b\u5efa\u8bed\u53e5<\/strong><br>\u5411ChatGPT\u8f93\u5165\u9700\u6c42\u540e\uff0c\u751f\u6210\u7684SQL\u8bed\u53e5\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"FzgOm\" class=\"wp-block-code\"><code>CREATE VIEW view_product_expiration_2023_05_20 AS\nSELECT * FROM products WHERE expiration_date = '2023-05-20';<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b65\u9aa43\uff1a\u67e5\u8be2\u89c6\u56fe\u9a8c\u8bc1<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"z6Fg9\" class=\"wp-block-code\"><code>select * from view_product_expiration_2023_05_20; -- \u5e94\u8fd4\u56de\"\u9762\u5305\"\u7684\u8bb0\u5f55<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"m4S3d\">5.2 \u7528ChatGPT\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u10e142ac\"><strong>\u9700\u6c42<\/strong>\uff1a\u5411<code>products<\/code>\u8868\u6279\u91cf\u63d2\u51651000\u884c\u968f\u673a\u6d4b\u8bd5\u6570\u636e\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u901a\u8fc7ChatGPT\u751f\u6210\u5b58\u50a8\u8fc7\u7a0b<\/strong><br>\u8f93\u5165\u9700\u6c42\u540e\uff0c\u751f\u6210\u7684\u5b58\u50a8\u8fc7\u7a0b\u5982\u4e0b\uff08\u542b\u968f\u673a\u6570\u636e\u751f\u6210\u903b\u8f91\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"vo35q\" class=\"wp-block-code\"><code>DELIMITER $$\n\nCREATE PROCEDURE InsertTestData()\nBEGIN\n    DECLARE i INT DEFAULT 1;\n    DECLARE product_name VARCHAR(100);\n    DECLARE product_price DECIMAL(10,2);\n    DECLARE product_stock INT;\n    \n    WHILE i &lt;= 1000 DO\n        -- \u751f\u6210\u968f\u673a\u6570\u636e\n        SET product_name = CONCAT('\u6d4b\u8bd5\u5546\u54c1_', i); -- \u5546\u54c1\u540d\u79f0\uff1a\u6d4b\u8bd5\u5546\u54c1_\u5e8f\u53f7\n        SET product_price = ROUND(RAND() * 1000, 2); -- \u968f\u673a\u4ef7\u683c\uff080-1000\u5143\uff0c\u4fdd\u75592\u4f4d\u5c0f\u6570\uff09\n        SET product_stock = FLOOR(RAND() * 1000); -- \u968f\u673a\u5e93\u5b58\uff080-999\uff09\n        \n        -- \u63d2\u5165\u6570\u636e\uff08\u751f\u4ea7\u65e5\u671f\u4e3a\u8fd11\u5e74\u968f\u673a\u65e5\u671f\uff0c\u8fc7\u671f\u65e5\u671f\u4e3a\u672a\u67651\u5e74\u968f\u673a\u65e5\u671f\u6216NULL\uff09\n        INSERT INTO products (name, description, price, stock_quantity, production_date, expiration_date)\n        VALUES (\n            product_name,\n            CONCAT('\u8fd9\u662f\u6d4b\u8bd5\u5546\u54c1\u7684\u63cf\u8ff0\u4fe1\u606f\uff0c\u7f16\u53f7\u4e3a', i),\n            product_price,\n            product_stock,\n            DATE_SUB(CURDATE(), INTERVAL FLOOR(RAND() * 365) DAY),\n            IF(RAND() &gt; 0.5, DATE_ADD(CURDATE(), INTERVAL FLOOR(RAND() * 365) DAY), NULL)\n        );\n        \n        SET i = i + 1;\n    END WHILE;\nEND$$\n\nDELIMITER ;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\u5e76\u9a8c\u8bc1<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"pFXPW\" class=\"wp-block-code\"><code>CALL InsertTestData(); -- \u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\nselect count(*) from products; -- \u603b\u6570\u636e\u91cf\u5e94\u4e3a\u521d\u59cb4\u6761+1000\u6761=1004\u6761<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"M765f\">5.3 \u7528ChatGPT\u521b\u5efa\u89e6\u53d1\u5668<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u72150862\"><strong>\u9700\u6c42<\/strong>\uff1a\u5f53<code>class_info_01<\/code>\u8868\u6709\u65b0\u6570\u636e\u63d2\u5165\u65f6\uff0c\u81ea\u52a8\u540c\u6b65\u5230<code>class_info_02<\/code>\u8868\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u901a\u8fc7ChatGPT\u751f\u6210\u89e6\u53d1\u5668<\/strong><br>\u8f93\u5165\u9700\u6c42\u540e\uff0c\u751f\u6210\u7684\u89e6\u53d1\u5668\u5982\u4e0b\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"EpJoi\" class=\"wp-block-code\"><code>DELIMITER $$\n\nCREATE TRIGGER sync_insert_class_info\nAFTER INSERT ON class_info_01 -- \u89e6\u53d1\u65f6\u673a\u548c\u5bf9\u8c61\nFOR EACH ROW\nBEGIN\n    INSERT INTO class_info_02 (id, name) VALUES (NEW.id, NEW.name); -- \u540c\u6b65\u65b0\u6570\u636e\nEND$$\n\nDELIMITER ;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6d4b\u8bd5\u89e6\u53d1\u5668<\/strong><\/li>\n<\/ul>\n\n\n\n<pre id=\"XeBXs\" class=\"wp-block-code\"><code>-- \u5411class_info_01\u63d2\u5165\u6570\u636e\nINSERT INTO class_info_01 (id, name) VALUES (1, '\u5f20\u4e09');\n\n-- \u9a8c\u8bc1class_info_02\u662f\u5426\u540c\u6b65\nSELECT * FROM class_info_02; -- \u5e94\u8fd4\u56deid=1\u3001name='\u5f20\u4e09'\u7684\u8bb0\u5f55<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"zNzek\">6 \u672c\u7ae0\u603b\u7ed3<\/h1>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u77e5\u8bc6\u70b9<\/td><td>\u9700\u8981\u638c\u63e1\u7684\u5185\u5bb9<\/td><\/tr><tr><td>\u89c6\u56fe<\/td><td>\u89c6\u56fe\u7684\u7528\u9014\u3001\u521b\u5efa\u89c6\u56fe\u3001\u67e5\u770b\u89c6\u56fe\u7ed3\u6784\u3001\u5220\u9664\u89c6\u56fe<\/td><\/tr><tr><td>\u5b58\u50a8\u8fc7\u7a0b<\/td><td>\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u3001\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u3001\u67e5\u770b\u5b58\u50a8\u8fc7\u7a0b\u7684\u5b9a\u4e49\u3001\u5b58\u50a8\u8fc7\u7a0b\u6848\u4f8b\u4e3e\u4f8b\u3001\u5b58\u50a8\u8fc7\u7a0b\u7684\u7f3a\u70b9<\/td><\/tr><tr><td>\u89e6\u53d1\u5668<\/td><td>\u521b\u5efa\u89e6\u53d1\u5668\u3001\u6d4b\u8bd5\u89e6\u53d1\u5668\u3001\u89e6\u53d1\u5668\u7684\u5e94\u7528\u573a\u666f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u81e081b0\">\u672c\u6587\u8be6\u7ec6\u8bb2\u89e3\u4e86\u6570\u636e\u5e93\u4e2d\u89c6\u56fe\u3001\u5b58\u50a8\u8fc7\u7a0b\u548c\u89e6\u53d1\u5668\u7684\u6838\u5fc3\u6982\u5ff5\u3001\u521b\u5efa\u65b9\u6cd5\u3001\u5b9e\u9645\u5e94\u7528\u53ca\u5c40\u9650\u6027\uff0c\u5e76\u901a\u8fc7\u7efc\u5408\u6848\u4f8b\u548cChatGPT\u8f85\u52a9\u5de5\u5177\u6f14\u793a\u4e86\u5982\u4f55\u9ad8\u6548\u4f7f\u7528\u4e09\u8005\u3002\u89c6\u56fe\u7528\u4e8e\u7b80\u5316\u67e5\u8be2\u4e0e\u4fdd\u62a4\u6570\u636e\uff0c\u5b58\u50a8\u8fc7\u7a0b\u7528\u4e8e\u5c01\u88c5\u590d\u6742\u903b\u8f91\uff0c\u89e6\u53d1\u5668\u7528\u4e8e\u81ea\u52a8\u54cd\u5e94\u8868\u64cd\u4f5c\uff0c\u4e09\u8005\u7ed3\u5408\u53ef\u663e\u8457\u63d0\u5347\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u6548\u7387\u4e0e\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1 \u8be6\u89e3\u89c6\u56fe\u7684\u521b\u5efa\u4e0e\u5e94\u7528 1.1 \u89c6\u56fe\u7684\u6838\u5fc3\u7528\u9014 \u89c6\u56fe\u662f\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u57fa\u7840\u8868\u6784\u5efa\u7684\u865a\u62df\u8868\uff0c\u5176\u6570\u636e\u6765\u6e90\u4e8e\u57fa\u7840\u8868\u7684<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=220\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[16],"class_list":["post-220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=220"}],"version-history":[{"count":2,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/220\/revisions"}],"predecessor-version":[{"id":896,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/220\/revisions\/896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/221"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}