{"id":163699,"date":"2024-11-05T01:41:30","date_gmt":"2024-11-04T17:41:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163699\/"},"modified":"2024-11-05T01:41:31","modified_gmt":"2024-11-04T17:41:31","slug":"%e8%a7%a3%e6%b1%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8c%af%e8%aa%a4%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e6%b3%95-sql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163699\/","title":{"rendered":"\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u7684\u6709\u6548\u65b9\u6cd5 (sql\u6578\u64da\u5eab\u932f\u8aa4)"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8c%af%e8%aa%a4%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e6%b3%95-QlmAulURcM\">\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u7684\u6709\u6548\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cSQL\u6578\u64da\u5eab\u662f\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u548c\u7db2\u7ad9\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u7136\u800c\uff0c\u7121\u8ad6\u662f\u521d\u5b78\u8005\u9084\u662f\u7d93\u9a57\u8c50\u5bcc\u7684\u958b\u767c\u8005\uff0c\u90fd\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2eSQL\u6578\u64da\u5eab\u932f\u8aa4\u3002\u9019\u4e9b\u932f\u8aa4\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3001\u61c9\u7528\u7a0b\u5e8f\u5d29\u6f70\u6216\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u89e3\u6c7a\u9019\u4e9b\u932f\u8aa4\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84sql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8c%af%e8%aa%a4%e9%a1%9e%e5%9e%8b-QlmAulURcM\">\u5e38\u898b\u7684SQL\u6578\u64da\u5eab\u932f\u8aa4\u985e\u578b<\/h2>\n<p>\u5728\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u5e38\u898b\u7684\u932f\u8aa4\u985e\u578b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684SQL\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u8a9e\u6cd5\u932f\u8aa4\uff1a<\/strong>\u9019\u662f\u6700\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u901a\u5e38\u662f\u7531\u65bcSQL\u8a9e\u53e5\u4e2d\u7684\u62fc\u5beb\u932f\u8aa4\u6216\u4e0d\u6b63\u78ba\u7684\u8a9e\u6cd5\u7d50\u69cb\u5f15\u8d77\u7684\u3002<\/li>\n<li><strong>\u9023\u63a5\u932f\u8aa4\uff1a<\/strong>\u9019\u7a2e\u932f\u8aa4\u767c\u751f\u5728\u61c9\u7528\u7a0b\u5e8f\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\u6642\uff0c\u53ef\u80fd\u662f\u7531\u65bc\u914d\u7f6e\u932f\u8aa4\u6216\u7db2\u7d61\u554f\u984c\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u7576\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\uff0c\u5982\u679c\u6578\u64da\u985e\u578b\u4e0d\u7b26\u5408\u8868\u7684\u5b9a\u7fa9\uff0c\u5247\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e3b\u9375\u885d\u7a81\uff1a<\/strong>\u7576\u5617\u8a66\u63d2\u5165\u4e00\u689d\u8a18\u9304\uff0c\u5176\u4e3b\u9375\u5df2\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\u6642\uff0c\u6703\u767c\u751f\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6b7b\u9396\uff1a<\/strong>\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u76f8\u4e92\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\u6642\uff0c\u6703\u5c0e\u81f4\u6b7b\u9396\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8c%af%e8%aa%a4%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e6%b3%95-QlmAulURcM\">\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u7684\u6709\u6548\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e8%aa%9e%e6%b3%95%e9%8c%af%e8%aa%a4-QlmAulURcM\">1. \u6aa2\u67e5\u8a9e\u6cd5\u932f\u8aa4<\/h3>\n<p>\u5c0d\u65bc\u8a9e\u6cd5\u932f\u8aa4\uff0c\u9996\u5148\u61c9\u4ed4\u7d30\u6aa2\u67e5SQL\u8a9e\u53e5\u7684\u62fc\u5beb\u548c\u7d50\u69cb\u3002\u4f7f\u7528SQL\u7de8\u8f2f\u5668\u6216IDE\u7684\u8a9e\u6cd5\u9ad8\u4eae\u529f\u80fd\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u554f\u984c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FORM users WHERE id = 1;<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u201cFORM\u201d\u61c9\u8a72\u662f\u201cFROM\u201d\u3002<\/p>\n<h3 id=\"2-%e9%a9%97%e8%ad%89%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-QlmAulURcM\">2. \u9a57\u8b49\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u5982\u679c\u9047\u5230\u9023\u63a5\u932f\u8aa4\uff0c\u8acb\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u5305\u62ec\u4e3b\u6a5f\u540d\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002\u78ba\u4fdd\u6578\u64da\u5eab\u670d\u52d9\u6b63\u5728\u904b\u884c\uff0c\u4e26\u4e14\u9632\u706b\u7246\u672a\u963b\u6b62\u9023\u63a5\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%aa%a2%e6%9f%a5-QlmAulURcM\">3. \u6578\u64da\u985e\u578b\u6aa2\u67e5<\/h3>\n<p>\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u6578\u64da\u985e\u578b\u8207\u8868\u7684\u5b9a\u7fa9\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8868\u4e2d\u7684\u67d0\u4e00\u5217\u5b9a\u7fa9\u70ba\u6574\u6578\u985e\u578b\uff0c\u5247\u63d2\u5165\u7684\u6578\u64da\u5fc5\u9808\u662f\u6574\u6578\uff1a<\/p>\n<pre><code>INSERT INTO users (age) VALUES ('twenty');<\/code><\/pre>\n<p>\u9019\u5c07\u5c0e\u81f4\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u7684\u932f\u8aa4\u3002<\/p>\n<h3 id=\"4-%e8%99%95%e7%90%86%e4%b8%bb%e9%8d%b5%e8%a1%9d%e7%aa%81-QlmAulURcM\">4. \u8655\u7406\u4e3b\u9375\u885d\u7a81<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u4e3b\u9375\u885d\u7a81\uff0c\u61c9\u5728\u63d2\u5165\u6578\u64da\u4e4b\u524d\u6aa2\u67e5\u8a72\u4e3b\u9375\u662f\u5426\u5df2\u5b58\u5728\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\uff1a<\/p>\n<pre><code>SELECT COUNT(*) FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u7684\u8a08\u6578\u5927\u65bc0\uff0c\u5247\u8868\u793a\u4e3b\u9375\u5df2\u5b58\u5728\u3002<\/p>\n<h3 id=\"5-%e8%a7%a3%e6%b1%ba%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c-QlmAulURcM\">5. \u89e3\u6c7a\u6b7b\u9396\u554f\u984c<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u6b7b\u9396\uff0c\u61c9\u5118\u91cf\u6e1b\u5c11\u4e8b\u52d9\u7684\u6301\u6709\u6642\u9593\uff0c\u4e26\u78ba\u4fdd\u4ee5\u76f8\u540c\u7684\u9806\u5e8f\u8a2a\u554f\u8cc7\u6e90\u3002\u4f7f\u7528\u9069\u7576\u7684\u9396\u5b9a\u7b56\u7565\u4e5f\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u6b7b\u9396\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QlmAulURcM\">\u7e3d\u7d50<\/h2>\n<p>\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u9700\u8981\u5c0d\u5e38\u898b\u554f\u984c\u6709\u6df1\u5165\u7684\u4e86\u89e3\uff0c\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u63aa\u65bd\u4f86\u4fee\u5fa9\u5b83\u5011\u3002\u901a\u904e\u6aa2\u67e5\u8a9e\u6cd5\u3001\u9a57\u8b49\u9023\u63a5\u3001\u78ba\u4fdd\u6578\u64da\u985e\u578b\u5339\u914d\u3001\u8655\u7406\u4e3b\u9375\u885d\u7a81\u4ee5\u53ca\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u932f\u8aa4\u7684\u767c\u751f\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u4e00\u500b\u660e\u667a\u7684\u9078\u64c7\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6709\u6548\u89e3\u6c7aSQL\u6578\u64da\u5eab\u932f\u8aa4\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\uff0c\u8b93\u60a8\u7684\u7cfb\u7d71\u904b\u884c\u66f4\u9806\u66a2\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-163699","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=163699"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163699\/revisions"}],"predecessor-version":[{"id":163700,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163699\/revisions\/163700"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}