{"id":313774,"date":"2024-05-20T23:13:50","date_gmt":"2024-05-20T15:13:50","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/313774.html"},"modified":"2024-05-20T23:13:58","modified_gmt":"2024-05-20T15:13:58","slug":"sql-%e4%b8%ad%e5%b8%b8%e8%a7%81%e7%9a%84%e6%8a%a5%e9%94%99%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/313774.html","title":{"rendered":"SQL \u4e2d\u5e38\u89c1\u7684\u62a5\u9519\u6709\u54ea\u4e9b"},"content":{"rendered":"

\"SQL<\/p>\n

SQL\uff08Structured Query Language\uff09\u662f\u7528\u4e8e\u7ba1\u7406\u548c\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u6807\u51c6\u7f16\u7a0b\u8bed\u8a00\u3002\u5728\u65e5\u5e38\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u591a\u79cd\u9519\u8bef\u63d0\u793a\uff0c\u5e38\u89c1\u7684\u9519\u8bef\u5305\u62ec\u8bed\u6cd5\u9519\u8bef\u3001\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u6743\u9650\u4e0d\u8db3\u3001\u4e3b\u952e\u51b2\u7a81<\/strong>\u7b49\u3002\u5176\u4e2d\uff0c\u8bed\u6cd5\u9519\u8bef<\/strong>\u662f\u6700\u5e38\u89c1\u7684\u4e00\u79cd\u60c5\u51b5\uff0c\u901a\u5e38\u662f\u7531\u4e8eSQL\u6307\u4ee4\u4e66\u5199\u4e0d\u89c4\u8303\u6216\u9057\u6f0f\u67d0\u4e9b\u5173\u952e\u5b57\u9020\u6210\u7684\u3002\u6bd4\u5982\uff0c\u9057\u5fd8\u4e86SELECT\u8bed\u53e5\u4e2d\u7684FROM\u5b50\u53e5\uff0c\u6216\u8005INSERT\u8bed\u53e5\u4e2d\u5fd8\u8bb0\u4e86\u63d0\u4f9b\u5fc5\u9700\u7684\u5217\u540d\u3002\u8fd9\u4e9b\u9519\u8bef\u901a\u5e38\u4f1a\u88abSQL\u89e3\u91ca\u5668\u68c0\u6d4b\u5230\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u63cf\u8ff0\u6027\u7684\u9519\u8bef\u4fe1\u606f\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bed\u6cd5\u9519\u8bef<\/h3>\n<\/p>\n

\u8bed\u6cd5\u9519\u8bef\u662f\u5728\u7f16\u5199SQL\u4ee3\u7801\u65f6\u6700\u5bb9\u6613\u72af\u7684\u9519\u8bef\u3002\u8fd9\u7c7b\u9519\u8bef\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a\u5173\u952e\u5b57\u62fc\u5199\u9519\u8bef\u3001\u7f3a\u5c11\u5fc5\u8981\u7684\u7b26\u53f7\u3001\u9519\u8bef\u7684\u6570\u636e\u6392\u5e8f\u7b49\u3002\u89e3\u51b3\u8bed\u6cd5\u9519\u8bef\u7684\u5173\u952e\u5728\u4e8e\u4ed4\u7ec6\u5ba1\u67e5\u4ee3\u7801\uff0c\u786e\u4fdd\u6240\u6709\u8bed\u53e5\u90fd\u4e25\u683c\u9075\u5faaSQL\u8bed\u6cd5\u89c4\u5219\u3002<\/p>\n<\/p>\n

    \n
  • \u4e3a\u4e86\u51cf\u5c11\u8bed\u6cd5\u9519\u8bef\uff0c\u4f7f\u7528\u73b0\u4ee3\u5f00\u53d1\u73af\u5883\u6216SQL\u7f16\u8f91\u5668\u80fd\u63d0\u4f9b\u5373\u65f6\u7684\u8bed\u6cd5\u68c0\u67e5\u548c\u4ee3\u7801\u63d0\u793a\u529f\u80fd\uff0c\u9ad8\u4eae\u663e\u793a\u53ef\u80fd\u7684\u9519\u8bef\uff0c\u4ece\u800c\u5e2e\u52a9\u5f00\u53d1\u8005\u53ca\u65f6\u7ea0\u6b63\u3002<\/li>\n
  • \u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u89e3\u51b3\u7b56\u7565\u662f\u9010\u6b65\u6784\u5efaSQL\u67e5\u8be2\u3002\u5148\u7f16\u5199\u5e76\u6d4b\u8bd5\u6700\u57fa\u7840\u7684\u67e5\u8be2\uff0c\u786e\u8ba4\u65e0\u8bef\u540e\u518d\u9010\u6b65\u6dfb\u52a0\u590d\u6742\u7684\u6761\u4ef6\u548c\u7ed3\u6784\u3002\u8fd9\u79cd\u65b9\u6cd5\u6709\u52a9\u4e8e\u5feb\u901f\u5b9a\u4f4d\u5f15\u53d1\u9519\u8bef\u7684\u5177\u4f53\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n

    \u4e8c\u3001\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d<\/h3>\n<\/p>\n

    \u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u662f\u6307\u5728\u6267\u884cSQL\u547d\u4ee4\u65f6\uff0c\u7ed9\u5b9a\u7684\u6570\u636e\u7c7b\u578b\u4e0e\u76ee\u6807\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u4e0d\u4e00\u81f4\u3002\u8fd9\u79cd\u9519\u8bef\u53ef\u80fd\u5bfc\u81f4\u67e5\u8be2\u5931\u8d25\u6216\u8fd4\u56de\u610f\u5916\u7684\u7ed3\u679c\u3002<\/p>\n<\/p>\n

      \n
    • \u9632\u6b62\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u7684\u4e00\u4e2a\u6709\u6548\u65b9\u6cd5\u662f\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6570\u636e\u524d\uff0c\u5148\u8fdb\u884c\u6570\u636e\u9a8c\u8bc1\u3002\u786e\u4fdd\u63d0\u4ea4\u7ed9\u6570\u636e\u5e93\u7684\u6570\u636e\u4e0e\u76ee\u6807\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u548c\u683c\u5f0f\u4e00\u81f4\u3002<\/li>\n
    • \u5728\u8bbe\u8ba1\u6570\u636e\u5e93\u548c\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u4f7f\u7528\u9002\u5f53\u7684\u6570\u636e\u9a8c\u8bc1\u89c4\u5219\u548c\u7ea6\u675f\u4e5f\u80fd\u663e\u8457\u964d\u4f4e\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u7684\u53d1\u751f\u6982\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u5c42\u9762\u8bbe\u5b9a\u5b57\u6bb5\u7c7b\u578b\u3001\u672a\u7a7a\u89c4\u5219\u4ee5\u53ca\u6570\u636e\u503c\u8303\u56f4\u7b49\u7ea6\u675f\u3002<\/li>\n<\/ul>\n

      \u4e09\u3001\u6743\u9650\u4e0d\u8db3<\/h3>\n<\/p>\n

      \u5728\u5c1d\u8bd5\u8bbf\u95ee\u6570\u636e\u5e93\u6216\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u65f6\uff0c\u5982\u679c\u7528\u6237\u6216\u5e94\u7528\u7a0b\u5e8f\u6ca1\u6709\u8db3\u591f\u7684\u6743\u9650\uff0cSQL\u4f1a\u8fd4\u56de\u6743\u9650\u4e0d\u8db3\u7684\u9519\u8bef\u3002\u6b63\u786e\u914d\u7f6e\u548c\u7ba1\u7406\u7528\u6237\u6743\u9650\u662f\u786e\u4fdd\u6570\u636e\u5e93\u5b89\u5168\u548c\u6570\u636e\u5b8c\u6574\u6027\u7684\u91cd\u8981\u65b9\u9762\u3002<\/p>\n<\/p>\n

        \n
      • \u6570\u636e\u5e93\u7ba1\u7406\u5458\u5e94\u8be5\u9075\u5faa\u6700\u5c0f\u6743\u9650\u539f\u5219\uff0c\u53ea\u6388\u4e88\u5fc5\u8981\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\u6743\u9650\u3002\u5b9a\u671f\u5ba1\u67e5\u548c\u66f4\u65b0\u6743\u9650\u8bbe\u7f6e\uff0c\u79fb\u9664\u4e0d\u518d\u9700\u8981\u7684\u6743\u9650\uff0c\u4ee5\u51cf\u5c11\u6f5c\u5728\u7684\u5b89\u5168\u98ce\u9669\u3002<\/li>\n
      • \u9047\u5230\u6743\u9650\u4e0d\u8db3\u7684\u9519\u8bef\u65f6\uff0c\u5e94\u8be5\u68c0\u67e5\u5f53\u524d\u7528\u6237\u7684\u6743\u9650\u8bbe\u7f6e\uff0c\u786e\u4fdd\u5176\u5177\u6709\u6267\u884c\u64cd\u4f5c\u6240\u9700\u7684\u6240\u6709\u5fc5\u8981\u6743\u9650\u3002\u5982\u679c\u9700\u8981\uff0c\u8054\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u5458\u66f4\u65b0\u6743\u9650\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n

        \u56db\u3001\u4e3b\u952e\u51b2\u7a81<\/h3>\n<\/p>\n

        \u4e3b\u952e\u51b2\u7a81\u53d1\u751f\u5728\u5c1d\u8bd5\u5c06\u91cd\u590d\u7684\u4e3b\u952e\u503c\u63d2\u5165\u540c\u4e00\u4e2a\u8868\u4e2d\uff0c\u8fdd\u53cd\u4e86\u4e3b\u952e\u7684\u552f\u4e00\u6027\u7ea6\u675f\u3002\u4e3b\u952e\u662f\u7528\u6765\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u6bcf\u6761\u8bb0\u5f55\u7684\u4e00\u4e2a\u6216\u4e00\u7ec4\u5217\uff0c\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002<\/p>\n<\/p>\n

          \n
        • \u5728\u8bbe\u8ba1\u6570\u636e\u5e93\u65f6\uff0c\u9009\u62e9\u5408\u9002\u7684\u4e3b\u952e\u7b56\u7565\u975e\u5e38\u91cd\u8981\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u81ea\u589e\u957f\u7684\u6574\u6570\u4f5c\u4e3a\u4e3b\u952e\u53ef\u4ee5\u81ea\u52a8\u907f\u514d\u63d2\u5165\u65f6\u7684\u51b2\u7a81\u95ee\u9898\u3002<\/li>\n
        • \u5f53\u63d2\u5165\u6570\u636e\u524d\uff0c\u53ef\u4ee5\u5148\u6267\u884c\u67e5\u8be2\u5224\u65ad\u662f\u5426\u5df2\u5b58\u5728\u76f8\u540c\u7684\u4e3b\u952e\u503c\u3002\u5982\u679c\u5b58\u5728\uff0c\u907f\u514d\u63d2\u5165\u64cd\u4f5c\u6216\u91c7\u53d6\u66f4\u65b0\u7b56\u7565\uff0c\u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e3b\u952e\u51b2\u7a81\u7684\u9519\u8bef\u3002<\/li>\n<\/ul>\n

          \u901a\u8fc7\u5bf9\u5e38\u89c1SQL\u9519\u8bef\u7684\u5206\u6790\u548c\u89e3\u51b3\u65b9\u6848\u7684\u8ba8\u8bba\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u907f\u514d\u8fd9\u4e9b\u9519\u8bef\u7684\u5173\u952e\u5728\u4e8e\u7f16\u5199\u89c4\u8303\u7684\u4ee3\u7801\u3001\u5145\u5206\u7406\u89e3\u6570\u636e\u5e93\u7684\u7ed3\u6784\u548c\u903b\u8f91\u3001\u4ee5\u53ca\u91c7\u7528\u5408\u9002\u7684\u6d4b\u8bd5\u548c\u8c03\u8bd5\u7b56\u7565\u3002\u5bf9\u4e8e\u6570\u636e\u5e93\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u6301\u7eed\u5b66\u4e60\u548c\u5b9e\u8df5\u662f\u63d0\u9ad8SQL\u7f16\u5199\u80fd\u529b\u3001\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u548c\u4fdd\u969c\u6570\u636e\u5b89\u5168\u7684\u91cd\u8981\u8def\u5f84\u3002<\/p>\n<\/p>\n

          \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
            \n
          1. \n

            \u4e3a\u4ec0\u4e48\u6211\u5728\u6267\u884cSQL\u8bed\u53e5\u65f6\u4f1a\u51fa\u73b0\u62a5\u9519\uff1f<\/strong>
            \n\u5728\u6267\u884cSQL\u8bed\u53e5\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5404\u79cd\u62a5\u9519\u3002\u5e38\u89c1\u7684\u62a5\u9519\u5305\u62ec\u8bed\u6cd5\u9519\u8bef\u3001\u7ea6\u675f\u51b2\u7a81\u3001\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u8868\u6216\u5217\u4e0d\u5b58\u5728\u7b49\u3002\u8fd9\u4e9b\u62a5\u9519\u53ef\u80fd\u662f\u7531\u4e8e\u7f16\u7801\u9519\u8bef\u3001SQL\u8bed\u53e5\u9519\u8bef\u6216\u6570\u636e\u5e93\u4e2d\u5b58\u5728\u95ee\u9898\u5f15\u8d77\u7684\u3002<\/p>\n<\/li>\n

          2. \n

            \u5982\u4f55\u89e3\u51b3\u5e38\u89c1\u7684SQL\u62a5\u9519\uff1f<\/strong>
            \n\u8981\u89e3\u51b3\u5e38\u89c1\u7684SQL\u62a5\u9519\uff0c\u9996\u5148\u9700\u8981\u68c0\u67e5\u9519\u8bef\u63d0\u793a\u4fe1\u606f\uff0c\u7406\u89e3\u9519\u8bef\u7684\u610f\u4e49\u3002\u7136\u540e\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5SQL\u8bed\u53e5\u7684\u8bed\u6cd5\u3001\u8868\u7ed3\u6784\u3001\u6570\u636e\u7c7b\u578b\u7b49\uff0c\u627e\u51fa\u9519\u8bef\u7684\u539f\u56e0\u3002\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\u5305\u62ec\u4fee\u590dSQL\u8bed\u53e5\u3001\u8c03\u6574\u8868\u7ed3\u6784\u3001\u66f4\u6539\u6570\u636e\u7c7b\u578b\u6216\u6dfb\u52a0\u7f3a\u5931\u7684\u8868\u6216\u5217\u7b49\u3002<\/p>\n<\/li>\n

          3. \n

            \u5982\u4f55\u9884\u9632SQL\u62a5\u9519\u7684\u53d1\u751f\uff1f<\/strong>
            \n\u4e3a\u4e86\u9884\u9632SQL\u62a5\u9519\u7684\u53d1\u751f\uff0c\u53ef\u4ee5\u91c7\u53d6\u4e00\u4e9b\u63aa\u65bd\u3002\u9996\u5148\u662f\u7f16\u5199\u5408\u7406\u7684SQL\u8bed\u53e5\uff0c\u9075\u5faa\u6570\u636e\u5e93\u7684\u89c4\u8303\u548c\u6700\u4f73\u5b9e\u8df5\u3002\u5176\u6b21\u662f\u8fdb\u884c\u5145\u5206\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\uff0c\u786e\u4fddSQL\u8bed\u53e5\u80fd\u591f\u6b63\u786e\u6267\u884c\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u9002\u5f53\u7684\u7ea6\u675f\u548c\u6570\u636e\u7c7b\u578b\uff0c\u4ee5\u53ca\u8fdb\u884c\u6570\u636e\u7684\u5408\u6cd5\u6027\u9a8c\u8bc1\uff0c\u907f\u514d\u51fa\u73b0\u4e0d\u5339\u914d\u6216\u51b2\u7a81\u7684\u60c5\u51b5\u3002<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"SQL\uff08Structured Query Language\uff09\u662f\u7528\u4e8e\u7ba1\u7406\u548c\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u6807\u51c6\u7f16\u7a0b\u8bed\u8a00\u3002\u5728\u65e5\u5e38\u4f7f\u7528\u8fc7 […]","protected":false},"author":3,"featured_media":313782,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/313774"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=313774"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/313774\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/313782"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=313774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=313774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=313774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}