{"id":386,"date":"2020-12-05T14:06:40","date_gmt":"2020-12-05T06:06:40","guid":{"rendered":"http:\/\/moyisuiying.com\/?p=386"},"modified":"2020-12-10T14:23:59","modified_gmt":"2020-12-10T06:23:59","slug":"mysql%e5%ad%a6%e4%b9%a0%e4%b8%8e%e5%ae%9e%e9%aa%8c%ef%bc%88%e5%85%ad%ef%bc%89-%e5%ae%9e%e4%bd%93%e5%ae%8c%e6%95%b4%e6%80%a7%e5%ae%9e%e9%aa%8c","status":"publish","type":"post","link":"http:\/\/moyisuiying.com\/index.php\/experiment\/mysqlexperiment\/386.html","title":{"rendered":"MYSQL\u5b66\u4e60\u4e0e\u5b9e\u9a8c\uff08\u516d\uff09\u2014\u2014\u5b9e\u4f53\u5b8c\u6574\u6027\u5b9e\u9a8c"},"content":{"rendered":"\n<h2>6.\u5b9e\u4f53\u5b8c\u6574\u6027\u5b9e\u9a8c<\/h2>\n\n\n\n<h3>6.1\u5b9a\u4e49<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote\"><p><strong>\u5b9e\u4f53\u5b8c\u6574\u6027\uff1a<\/strong>\u662f\u6307\u4fdd\u8bc1\u8868\u4e2d\u6240\u6709\u7684\u884c\u552f\u4e00\u3002\u5b9e\u4f53\u5b8c\u6574\u6027\u8981\u6c42\u8868\u4e2d\u7684\u6240\u6709\u884c\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\u3002\u8fd9\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\u53ef\u80fd\u662f\u4e00\u5217\uff0c\u4e5f\u53ef\u80fd\u662f\u51e0\u5217\u7684\u7ec4\u5408\uff0c\u79f0\u4e3a\u4e3b\u952e\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u8868\u4e2d\u7684\u4e3b\u952e\u5728\u6240\u6709\u884c\u4e0a\u5fc5\u987b\u53d6\u552f\u4e00\u503c\u3002\u5f3a\u5236\u5b9e\u4f53\u5b8c\u6574\u6027\u7684\u65b9\u6cd5\u6709\uff1a\u7d22\u5f15\u3001UNIQUE\u7ea6\u675f\u3001PRIMARY KEY\u7ea6\u675f\u6216IDENTITY\u5c5e\u6027\u3002<\/p><\/blockquote>\n\n\n\n<p>\u200b \u5982\uff1astudent\u8868\u4e2dsno\uff08\u5b66\u53f7\uff09\u7684\u53d6\u503c\u5fc5\u987b\u552f\u4e00\uff0c\u5b83\u552f\u4e00\u6807\u8bc6\u4e86\u76f8\u5e94\u8bb0\u5f55\u6240\u4ee3\u8868\u7684\u5b66\u751f\uff0c\u5b66\u53f7\u91cd\u590d\u662f\u975e\u6cd5\u7684\u3002\u5b66\u751f\u7684\u59d3\u540d\u4e0d\u80fd\u4f5c\u4e3a\u4e3b\u952e\uff0c\u56e0\u4e3a\u5b8c\u5168\u53ef\u80fd\u5b58\u5728\u4e24\u4e2a\u5b66\u751f\u540c\u540d\u540c\u59d3\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n<h3>6.2\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u5b9e\u4f53\u5b8c\u6574\u6027\uff1a\u521b\u5efa\u4e00\u4e2a\u8868 employee1\uff0c\u53ea\u542bemployeeID\u3001name\u3001gender\u548ceducation\u5217\u3002\u4ee5name\u4e3a\u4e3b\u952e\u4f5c\u4e3a\u5217name\u7684\u5b8c\u6574\u6027\u7ea6\u675f\uff0cemployeeID\u4e3a\u66ff\u4ee3\u952e\u4f5c\u4e3a\u8868\u7684\u5b8c\u6574\u6027\u7ea6\u675f\u3002<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>create table if not exists employee1(employeeID varchar(6) not null unique,name varchar(10) primary key,education varchar(10));<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img   class=\"lazyload\" data-src=\"https:\/\/img-blog.csdnimg.cn\/20201205140444495.jpg?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTE4NzAwMjI=,size_16,color_FFFFFF,t_70#pic_center\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure >\n<noscript><img src=\"https:\/\/img-blog.csdnimg.cn\/20201205140444495.jpg?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTE4NzAwMjI=,size_16,color_FFFFFF,t_70#pic_center\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure><\/noscript>\n\n\n\n<h3>6.3\u521b\u5efa\u8868\u540e\u5b9a\u4e49\u5b9e\u4f53\u5b8c\u6574\uff1a\u5b9a\u4e49\u4e0d\u542b\u4e3b\u952e\u7684\u8868employee2\uff0c\u5305\u542b\u4e0a\u8ff0\u5c5e\u6027\u5217\uff0c\u7136\u540e\u5b9a\u4e49\u5b9e\u4f53\u5b8c\u6574\u6027\uff0c\u4ee5employeeID\u4e3a\u4e3b\u7801.<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>create table if not exists employee2( employeeID varchar(6) not  null,name varchar(10) not null,education varchar(6));<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code> alter table employee2 add primary key(employeeID);<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img   class=\"lazyload\" data-src=\"https:\/\/img-blog.csdnimg.cn\/20201205140459267.jpg?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTE4NzAwMjI=,size_16,color_FFFFFF,t_70#pic_center\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure >\n<noscript><img src=\"https:\/\/img-blog.csdnimg.cn\/20201205140459267.jpg?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTE4NzAwMjI=,size_16,color_FFFFFF,t_70#pic_center\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure><\/noscript>\n\n\n\n<h3>6.4.\u8bbe\u8ba1\u8bb0\u5f55\u589e\u52a0\u5230employee1\u8868\u548cemployee2\u8868\uff0c\u9a8c\u8bc1\u5b9e\u4f53\u5b8c\u6574\u6027\u662f\u5426\u8d77\u4f5c\u7528<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>insert into employee1 values(\"100\",\"root\",\"\u672c\u79d1\");\ninsert into employee1 values(\"100\",\"root\",\"\u672c\u79d1\");<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img   class=\"lazyload\" data-src=\"https:\/\/img-blog.csdnimg.cn\/20201205140518879.jpg#pic_center\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure >\n<noscript><img src=\"https:\/\/img-blog.csdnimg.cn\/20201205140518879.jpg#pic_center\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure><\/noscript>\n\n\n\n<pre class=\"wp-block-code\"><code>insert into employee2 values(\"100\",\"root\",\"\u672c\u79d1\");\ninsert into employee2 values(\"100\",\"root\",\"\u672c\u79d1\");<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img   class=\"lazyload\" data-src=\"https:\/\/img-blog.csdnimg.cn\/20201205140532647.jpg#pic_center\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure >\n<noscript><img src=\"https:\/\/img-blog.csdnimg.cn\/20201205140532647.jpg#pic_center\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/><\/figure><\/noscript>\n\n\n\n<p>\u53ef\u89c1employee1\u548cemployee2\u7684\u5b8c\u6574\u6027\u90fd\u5f97\u5230\u4e86\u9a8c\u8bc1\u3002<\/p>\n\n\n\n<p>6.5\u8be6\u7ec6\u7684\u5b9e\u9a8c\u8d44\u6599\u4ee5\u53ca\u6307\u5bfcPPT\u8bf7\u8bbf\u95ee\u7b14\u8005GitHub\u5730\u5740\uff1a<a href=\"https:\/\/github.com\/LJF2402901363\/database_experiment.git\" target=\"_blank\"  rel=\"nofollow\" >https:\/\/github.com\/LJF2402901363\/database_experiment.git<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>6.\u5b9e\u4f53\u5b8c\u6574\u6027\u5b9e\u9a8c 6.1\u5b9a\u4e49 \u5b9e\u4f53\u5b8c\u6574\u6027\uff1a\u662f\u6307\u4fdd\u8bc1\u8868\u4e2d\u6240\u6709\u7684\u884c\u552f\u4e00\u3002\u5b9e\u4f53\u5b8c\u6574\u6027\u8981\u6c42\u8868\u4e2d\u7684\u6240\u6709\u884c\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\u3002\u8fd9\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26 &#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[120],"tags":[143,121,144],"_links":{"self":[{"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/posts\/386"}],"collection":[{"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/comments?post=386"}],"version-history":[{"count":2,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/posts\/386\/revisions"}],"predecessor-version":[{"id":393,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/posts\/386\/revisions\/393"}],"wp:attachment":[{"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/media?parent=386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/categories?post=386"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/moyisuiying.com\/index.php\/wp-json\/wp\/v2\/tags?post=386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}