{"id":168419,"date":"2024-11-06T12:13:20","date_gmt":"2024-11-06T04:13:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168419\/"},"modified":"2024-11-06T12:13:21","modified_gmt":"2024-11-06T04:13:21","slug":"sql-%e7%a7%bb%e5%8b%95%e8%a1%a8%ef%bc%9a%e7%b0%a1%e5%96%ae%e9%ab%98%e6%95%88%e6%90%ac%e9%81%b7%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-sql-%e7%a7%bb%e5%8b%95%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168419\/","title":{"rendered":"SQL \u79fb\u52d5\u8868\uff1a\u7c21\u55ae\u9ad8\u6548\u642c\u9077\u6578\u64da\u5eab\u8868 (sql \u79fb\u52d5\u6578\u64da\u5eab\u8868)"},"content":{"rendered":"<h1 id=\"sql-%e7%a7%bb%e5%8b%95%e8%a1%a8%ef%bc%9a%e7%b0%a1%e5%96%ae%e9%ab%98%e6%95%88%e6%90%ac%e9%81%b7%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-zpsksYqfSG\">SQL \u79fb\u52d5\u8868\uff1a\u7c21\u55ae\u9ad8\u6548\u642c\u9077\u6578\u64da\u5eab\u8868<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u79fb\u52d5\u8868\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u56e0\u70ba\u6578\u64da\u5eab\u7684\u91cd\u7d44\u3001\u6027\u80fd\u512a\u5316\uff0c\u9084\u662f\u56e0\u70ba\u9700\u8981\u5c07\u6578\u64da\u5f9e\u4e00\u500b\u4f3a\u670d\u5668\u9077\u79fb\u5230\u53e6\u4e00\u500b\u4f3a\u670d\u5668\uff0c\u638c\u63e1 SQL \u79fb\u52d5\u8868\u7684\u6280\u5de7\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u9ad8\u6548\u5730\u642c\u9077\u6578\u64da\u5eab\u8868\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e7%a7%bb%e5%8b%95%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%ef%bc%9f-zpsksYqfSG\">\u70ba\u4ec0\u9ebc\u9700\u8981\u79fb\u52d5\u6578\u64da\u5eab\u8868\uff1f<\/h2>\n<p>\u79fb\u52d5\u6578\u64da\u5eab\u8868\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u91cd\u7d44\uff1a<\/strong>\u96a8\u8457\u696d\u52d9\u7684\u767c\u5c55\uff0c\u6578\u64da\u5eab\u7d50\u69cb\u53ef\u80fd\u9700\u8981\u8abf\u6574\uff0c\u4ee5\u9069\u61c9\u65b0\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u5c07\u67d0\u4e9b\u8868\u79fb\u52d5\u5230\u4e0d\u540c\u7684\u6578\u64da\u5eab\u6216\u4f3a\u670d\u5668\u4e0a\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u6578\u64da\u5099\u4efd\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5099\u4efd\u6216\u9077\u79fb\u6642\uff0c\u53ef\u80fd\u9700\u8981\u5c07\u8868\u79fb\u52d5\u5230\u5176\u4ed6\u4f4d\u7f6e\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u5728\u591a\u500b\u4f3a\u670d\u5668\u4e4b\u9593\u5206\u914d\u8ca0\u8f09\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a7%bb%e5%8b%95%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-zpsksYqfSG\">\u79fb\u52d5\u8868\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u79fb\u52d5\u6578\u64da\u5eab\u8868\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u5c0e\u51fa\u6578\u64da\uff1a<\/strong>\u4f7f\u7528 SQL \u8a9e\u53e5\u5c07\u8868\u4e2d\u7684\u6578\u64da\u5c0e\u51fa\u5230\u4e00\u500b\u6587\u4ef6\u4e2d\u3002<\/li>\n<li><strong>\u5275\u5efa\u65b0\u8868\uff1a<\/strong>\u5728\u76ee\u6a19\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u4e00\u500b\u65b0\u7684\u8868\uff0c\u7d50\u69cb\u61c9\u8207\u539f\u8868\u76f8\u540c\u3002<\/li>\n<li><strong>\u5c0e\u5165\u6578\u64da\uff1a<\/strong>\u5c07\u5c0e\u51fa\u7684\u6578\u64da\u5c0e\u5165\u5230\u65b0\u5275\u5efa\u7684\u8868\u4e2d\u3002<\/li>\n<li><strong>\u9a57\u8b49\u6578\u64da\uff1a<\/strong>\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\uff0c\u6aa2\u67e5\u65b0\u8868\u4e2d\u7684\u6578\u64da\u662f\u5426\u6b63\u78ba\u3002<\/li>\n<li><strong>\u522a\u9664\u820a\u8868\uff1a<\/strong>\u5728\u78ba\u8a8d\u65b0\u8868\u6578\u64da\u7121\u8aa4\u5f8c\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u820a\u8868\u3002<\/li>\n<\/ol>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8-sql-%e7%a7%bb%e5%8b%95%e8%a1%a8-zpsksYqfSG\">\u793a\u4f8b\uff1a\u4f7f\u7528 SQL \u79fb\u52d5\u8868<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u79fb\u52d5\u4e00\u500b\u540d\u70ba `employees` \u7684\u8868\u3002<\/p>\n<pre><code>-- 1. \u5c0e\u51fa\u6578\u64da\nSELECT * INTO OUTFILE '\/tmp\/employees_data.csv'\nFIELDS TERMINATED BY ','\nENCLOSED BY '\"'\nLINES TERMINATED BY 'n'\nFROM employees;\n\n-- 2. \u5275\u5efa\u65b0\u8868\nCREATE TABLE new_database.employees (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    position VARCHAR(100),\n    salary DECIMAL(10, 2)\n);\n\n-- 3. \u5c0e\u5165\u6578\u64da\nLOAD DATA INFILE '\/tmp\/employees_data.csv'\nINTO TABLE new_database.employees\nFIELDS TERMINATED BY ','\nENCLOSED BY '\"'\nLINES TERMINATED BY 'n';\n\n-- 4. \u9a57\u8b49\u6578\u64da\nSELECT COUNT(*) FROM new_database.employees;\n\n-- 5. \u522a\u9664\u820a\u8868\nDROP TABLE employees;\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-zpsksYqfSG\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u79fb\u52d5\u6578\u64da\u5eab\u8868\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u5728\u79fb\u52d5\u904e\u7a0b\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u4e1f\u5931\u6216\u640d\u58de\u3002<\/li>\n<li><strong>\u6b0a\u9650\u7ba1\u7406\uff1a<\/strong>\u78ba\u4fdd\u5728\u65b0\u6578\u64da\u5eab\u4e2d\u64c1\u6709\u9069\u7576\u7684\u6b0a\u9650\u4f86\u5275\u5efa\u548c\u5c0e\u5165\u8868\u3002<\/li>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5728\u9ad8\u5cf0\u671f\u9032\u884c\u6578\u64da\u79fb\u52d5\u53ef\u80fd\u6703\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\uff0c\u5efa\u8b70\u5728\u4f4e\u5cf0\u671f\u9032\u884c\u3002<\/li>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u60c5\u6cc1\u767c\u751f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zpsksYqfSG\">\u7e3d\u7d50<\/h2>\n<p>\u79fb\u52d5\u6578\u64da\u5eab\u8868\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u7ba1\u7406\u54e1\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7d50\u69cb\u548c\u6027\u80fd\u3002\u901a\u904e\u9075\u5faa\u4e0a\u8ff0\u6b65\u9a5f\u548c\u6ce8\u610f\u4e8b\u9805\uff0c\u60a8\u53ef\u4ee5\u7c21\u55ae\u9ad8\u6548\u5730\u5b8c\u6210\u6578\u64da\u7684\u642c\u9077\u5de5\u4f5c\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\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\u4ee5\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u7c21\u55ae\u9ad8\u6548\u5730\u79fb\u52d5 SQL \u6578\u64da\u5eab\u8868\uff0c\u638c\u63e1\u642c\u9077\u6578\u64da\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-168419","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168419","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=168419"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168419\/revisions"}],"predecessor-version":[{"id":168420,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168419\/revisions\/168420"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}