{"id":923215,"date":"2024-07-07T03:56:02","date_gmt":"2024-07-07T03:56:02","guid":{"rendered":"https:\/\/proxyelite.info\/?p=923215"},"modified":"2024-06-27T04:01:34","modified_gmt":"2024-06-27T04:01:34","slug":"what-is-a-database-sql-and-why-are-they-needed","status":"publish","type":"post","link":"https:\/\/proxyelite.info\/cn\/what-is-a-database-sql-and-why-are-they-needed\/","title":{"rendered":"\u4ec0\u4e48\u662f\u6570\u636e\u5e93\uff08SQL\uff09\u4ee5\u53ca\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\u4eec\uff1f"},"content":{"rendered":"<p 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class=\"wp-block-paragraph\">\u5173\u7cfb\u6570\u636e\u5e93\u4f7f\u7528\u952e\u548c\u8fde\u63a5\u6709\u6548\u5730\u5904\u7406\u4e0d\u540c\u6570\u636e\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u8fd9\u4f7f\u5f97\u67e5\u8be2\u76f8\u5173\u6570\u636e\u548c\u83b7\u5f97\u6709\u610f\u4e49\u7684\u89c1\u89e3\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQL \u6570\u636e\u5e93\u7684\u5b9e\u9645\u5e94\u7528<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5546\u4e1a\u5e94\u7528<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SQL \u6570\u636e\u5e93\u7528\u4e8e\u5ba2\u6237\u5173\u7cfb\u7ba1\u7406 (CRM)\u3001\u4f01\u4e1a\u8d44\u6e90\u89c4\u5212 (ERP) \u548c\u5176\u4ed6\u4e1a\u52a1\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ee5\u5b58\u50a8\u548c\u5206\u6790\u4e1a\u52a1\u6570\u636e\u3002\u5b83\u4eec\u5e2e\u52a9\u4f01\u4e1a\u7ba1\u7406\u5ba2\u6237\u4e92\u52a8\u3001\u8ddf\u8e2a\u5e93\u5b58\u5e76\u505a\u51fa\u6570\u636e\u9a71\u52a8\u7684\u51b3\u7b56\u3002<\/p>\n\n\n\n<h3 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class=\"wp-block-heading\">\u8d22\u52a1\u7cfb\u7edf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u94f6\u884c\u548c\u91d1\u878d\u673a\u6784\u4f7f\u7528 SQL \u6570\u636e\u5e93\u5b89\u5168\u9ad8\u6548\u5730\u7ba1\u7406\u8d26\u6237\u3001\u4ea4\u6613\u548c\u8d22\u52a1\u8bb0\u5f55\u3002SQL \u6570\u636e\u5e93\u652f\u6301\u590d\u6742\u7684\u8d22\u52a1\u8ba1\u7b97\u548c\u6cd5\u89c4\u9075\u4ece\u6027\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6559\u80b2\u673a\u6784<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u5b66\u548c\u5b66\u6821\u4f7f\u7528 SQL \u6570\u636e\u5e93\u6765\u7ba1\u7406\u5b66\u751f\u8bb0\u5f55\u3001\u8bfe\u7a0b\u548c\u7ba1\u7406\u6570\u636e\u3002\u5b83\u4eec\u5e2e\u52a9\u6559\u80b2\u673a\u6784\u7ef4\u62a4\u51c6\u786e\u7684\u8bb0\u5f55\u5e76\u7b80\u5316\u7ba1\u7406\u6d41\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SQL 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SQL, or Structured Query Language, is a standardized language used to manage and manipulate relational databases, which store data in a tabular form consisting of rows and columns. Understanding SQL Databases SQL databases are designed to handle large volumes of structured [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":923216,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-923215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/posts\/923215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/comments?post=923215"}],"version-history":[{"count":1,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/posts\/923215\/revisions"}],"predecessor-version":[{"id":923239,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/posts\/923215\/revisions\/923239"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/media\/923216"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/media?parent=923215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/categories?post=923215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/proxyelite.info\/cn\/wp-json\/wp\/v2\/tags?post=923215"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}