{"id":142011,"date":"2024-10-31T22:16:21","date_gmt":"2024-10-31T14:16:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/142011\/"},"modified":"2024-10-31T22:16:22","modified_gmt":"2024-10-31T14:16:22","slug":"sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%b8%e7%bf%92%e6%94%bb%e7%95%a5%e8%88%87%e5%bf%83%e5%be%97%e5%88%86%e4%ba%ab%ef%bc%88sql-%e6%95%b8%e6%93%9a%e5%ba%ab-%e5%ad%b8%e7%bf%92%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/142011\/","title":{"rendered":"SQL \u6578\u64da\u5eab\u5b78\u7fd2\u653b\u7565\u8207\u5fc3\u5f97\u5206\u4eab\uff08sql \u6578\u64da\u5eab \u5b78\u7fd2\uff09"},"content":{"rendered":"<h1 id=\"sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%b8%e7%bf%92%e6%94%bb%e7%95%a5%e8%88%87%e5%bf%83%e5%be%97%e5%88%86%e4%ba%ab-NpWfEVsijK\">SQL \u6578\u64da\u5eab\u5b78\u7fd2\u653b\u7565\u8207\u5fc3\u5f97\u5206\u4eab<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u6642\u4ee3\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u5df2\u6210\u70ba\u6578\u64da\u5eab\u7ba1\u7406\u548c\u64cd\u4f5c\u7684\u6838\u5fc3\u5de5\u5177\u3002\u7121\u8ad6\u662f\u521d\u5b78\u8005\u9084\u662f\u6709\u7d93\u9a57\u7684\u958b\u767c\u8005\uff0c\u638c\u63e1 SQL \u90fd\u662f\u63d0\u5347\u6578\u64da\u8655\u7406\u80fd\u529b\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u5206\u4eab SQL \u6578\u64da\u5eab\u7684\u5b78\u7fd2\u653b\u7565\u8207\u5fc3\u5f97\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u6709\u6548\u5730\u5b78\u7fd2\u548c\u61c9\u7528 SQL\u3002<\/p>\n<h2 id=\"1-%e4%ba%86%e8%a7%a3-sql-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-NpWfEVsijK\">1. \u4e86\u89e3 SQL \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u958b\u59cb\u5b78\u7fd2 SQL \u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u3002SQL \u662f\u4e00\u7a2e\u7528\u65bc\u7ba1\u7406\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u8a9e\u8a00\uff0c\u4e3b\u8981\u7528\u65bc\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u6838\u5fc3\u662f\u8868\u683c\uff0c\u6578\u64da\u4ee5\u884c\u548c\u5217\u7684\u5f62\u5f0f\u5b58\u5132\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684 SQL \u8a9e\u53e5\uff1a<\/p>\n<ul>\n<li><code>SELECT<\/code>\uff1a\u7528\u65bc\u67e5\u8a62\u6578\u64da\u3002<\/li>\n<li><code>INSERT<\/code>\uff1a\u7528\u65bc\u63d2\u5165\u65b0\u6578\u64da\u3002<\/li>\n<li><code>UPDATE<\/code>\uff1a\u7528\u65bc\u66f4\u65b0\u73fe\u6709\u6578\u64da\u3002<\/li>\n<li><code>DELETE<\/code>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e5%ad%b8%e7%bf%92%e8%b3%87%e6%ba%90-NpWfEVsijK\">2. \u9078\u64c7\u5408\u9069\u7684\u5b78\u7fd2\u8cc7\u6e90<\/h2>\n<p>\u5b78\u7fd2 SQL \u7684\u8cc7\u6e90\u975e\u5e38\u8c50\u5bcc\uff0c\u5305\u62ec\u66f8\u7c4d\u3001\u5728\u7dda\u8ab2\u7a0b\u548c\u8996\u983b\u6559\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u63a8\u85a6\u7684\u5b78\u7fd2\u8cc7\u6e90\uff1a<\/p>\n<ul>\n<li><strong>\u66f8\u7c4d\uff1a<\/strong>\u300aSQL Fundamentals\u300b\u662f\u4e00\u672c\u9069\u5408\u521d\u5b78\u8005\u7684\u66f8\u7c4d\uff0c\u6db5\u84cb\u4e86 SQL \u7684\u57fa\u672c\u6982\u5ff5\u548c\u5be6\u8e10\u3002<\/li>\n<li><strong>\u5728\u7dda\u8ab2\u7a0b\uff1a<\/strong>\u5e73\u53f0\u5982 Coursera \u548c Udemy \u63d0\u4f9b\u591a\u7a2e SQL \u8ab2\u7a0b\uff0c\u5f9e\u5165\u9580\u5230\u9032\u968e\u90fd\u6709\u3002<\/li>\n<li><strong>\u8996\u983b\u6559\u7a0b\uff1a<\/strong>YouTube \u4e0a\u6709\u8a31\u591a\u514d\u8cbb\u7684 SQL \u6559\u5b78\u8996\u983b\uff0c\u53ef\u4ee5\u5e6b\u52a9\u8996\u89ba\u5b78\u7fd2\u8005\u66f4\u597d\u5730\u7406\u89e3\u6982\u5ff5\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e5%af%a6%e8%b8%90%e6%98%af%e5%ad%b8%e7%bf%92%e7%9a%84%e9%97%9c%e9%8d%b5-NpWfEVsijK\">3. \u5be6\u8e10\u662f\u5b78\u7fd2\u7684\u95dc\u9375<\/h2>\n<p>\u5b78\u7fd2 SQL \u7684\u6700\u4f73\u65b9\u5f0f\u662f\u901a\u904e\u5be6\u8e10\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u514d\u8cbb\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5982 MySQL\u3001PostgreSQL \u6216 SQLite\uff0c\u4f86\u9032\u884c\u5be6\u969b\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u8868\u4e26\u63d2\u5165\u6578\u64da\uff1a<\/p>\n<pre><code>CREATE TABLE students (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    age INT\n);\n\nINSERT INTO students (id, name, age) VALUES (1, 'Alice', 20);\nINSERT INTO students (id, name, age) VALUES (2, 'Bob', 22);\n<\/code><\/pre>\n<p>\u901a\u904e\u9019\u6a23\u7684\u5be6\u8e10\uff0c\u60a8\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3 SQL \u8a9e\u6cd5\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6d41\u7a0b\u3002<\/p>\n<h2 id=\"4-%e5%8f%83%e5%8a%a0%e7%a4%be%e5%8d%80%e5%92%8c%e8%ab%96%e5%a3%87-NpWfEVsijK\">4. \u53c3\u52a0\u793e\u5340\u548c\u8ad6\u58c7<\/h2>\n<p>\u53c3\u52a0 SQL \u793e\u5340\u548c\u8ad6\u58c7\u53ef\u4ee5\u5e6b\u52a9\u60a8\u7372\u5f97\u66f4\u591a\u7684\u5b78\u7fd2\u8cc7\u6e90\u548c\u89e3\u6c7a\u554f\u984c\u7684\u9014\u5f91\u3002\u7db2\u7ad9\u5982 Stack Overflow \u548c Reddit \u7684 SQL \u5b50\u7248\u584a\u90fd\u662f\u5f88\u597d\u7684\u9078\u64c7\u3002\u5728\u9019\u4e9b\u5e73\u53f0\u4e0a\uff0c\u60a8\u53ef\u4ee5\u63d0\u554f\u3001\u5206\u4eab\u7d93\u9a57\uff0c\u4e26\u5b78\u7fd2\u5176\u4ed6\u958b\u767c\u8005\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"5-%e6%8c%81%e7%ba%8c%e5%ad%b8%e7%bf%92%e8%88%87%e9%80%b2%e9%9a%8e-NpWfEVsijK\">5. \u6301\u7e8c\u5b78\u7fd2\u8207\u9032\u968e<\/h2>\n<p>SQL \u7684\u4e16\u754c\u662f\u5ee3\u95ca\u7684\uff0c\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u65b0\u7684\u529f\u80fd\u548c\u6700\u4f73\u5be6\u8e10\u4e0d\u65b7\u51fa\u73fe\u3002\u5b78\u7fd2 SQL \u4e0d\u61c9\u8a72\u662f\u4e00\u6b21\u6027\u7684\u904e\u7a0b\uff0c\u800c\u61c9\u8a72\u662f\u4e00\u500b\u6301\u7e8c\u7684\u65c5\u7a0b\u3002\u53ef\u4ee5\u8003\u616e\u5b78\u7fd2\u66f4\u9ad8\u7d1a\u7684\u4e3b\u984c\uff0c\u5982\u6578\u64da\u5eab\u512a\u5316\u3001\u5b58\u5132\u904e\u7a0b\u548c\u89f8\u767c\u5668\u7b49\uff0c\u4ee5\u63d0\u5347\u81ea\u5df1\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NpWfEVsijK\">\u7e3d\u7d50<\/h2>\n<p>\u5b78\u7fd2 SQL \u6578\u64da\u5eab\u662f\u4e00\u500b\u5faa\u5e8f\u6f38\u9032\u7684\u904e\u7a0b\uff0c\u5f9e\u57fa\u672c\u6982\u5ff5\u5230\u5be6\u8e10\u64cd\u4f5c\uff0c\u6bcf\u4e00\u6b65\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u9078\u64c7\u5408\u9069\u7684\u5b78\u7fd2\u8cc7\u6e90\u3001\u7a4d\u6975\u53c3\u8207\u5be6\u8e10\u3001\u52a0\u5165\u793e\u5340\u8a0e\u8ad6\uff0c\u90fd\u662f\u63d0\u5347 SQL \u6280\u80fd\u7684\u6709\u6548\u65b9\u6cd5\u3002\u96a8\u8457\u5c0d SQL \u7684\u6df1\u5165\u4e86\u89e3\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u70ba\u672a\u4f86\u7684\u6578\u64da\u5206\u6790\u548c\u958b\u767c\u6253\u4e0b\u5805\u5be6\u7684\u57fa\u790e\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22SQL\u6578\u64da\u5eab\u5b78\u7fd2\u653b\u7565\u8207\u5fc3\u5f97\u5206\u4eab\uff0c\u52a9\u4f60\u638c\u63e1SQL\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u80fd\u529b\uff0c\u8f15\u9b06\u61c9\u5c0d\u5be6\u969b\u61c9\u7528\u6311\u6230\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-142011","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142011","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=142011"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142011\/revisions"}],"predecessor-version":[{"id":142012,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142011\/revisions\/142012"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=142011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=142011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=142011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}