{"id":187606,"date":"2024-11-11T15:40:22","date_gmt":"2024-11-11T07:40:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187606\/"},"modified":"2024-11-11T15:40:23","modified_gmt":"2024-11-11T07:40:23","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%b7%e8%a1%8c%e6%96%b9%e5%bc%8f-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%8e%e6%a8%a3%e5%9f%b7%e8%a1%8c%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187606\/","title":{"rendered":"\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u65b9\u5f0f (\u6578\u64da\u5eab\u600e\u6a23\u57f7\u884c\u8a9e\u53e5)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%b7%e8%a1%8c%e6%96%b9%e5%bc%8f-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%8e%e6%a8%a3%e5%9f%b7%e8%a1%8c%e8%aa%9e%e5%8f%a5-wmIjqJXxGm\">\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u65b9\u5f0f (\u6578\u64da\u5eab\u600e\u6a23\u57f7\u884c\u8a9e\u53e5)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u7121\u8ad6\u662f\u4f01\u696d\u7684\u65e5\u5e38\u904b\u71df\u9084\u662f\u500b\u4eba\u9805\u76ee\u7684\u958b\u767c\uff0c\u6578\u64da\u5eab\u90fd\u63d0\u4f9b\u4e86\u5b58\u5132\u548c\u7ba1\u7406\u6578\u64da\u7684\u6709\u6548\u65b9\u5f0f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u65b9\u5f0f\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u6578\u64da\u5eab\u662f\u5982\u4f55\u8655\u7406\u548c\u57f7\u884c\u5404\u7a2e\u8a9e\u53e5\u7684\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-wmIjqJXxGm\">\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u8a9e\u53e5\u662f\u7528\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u6307\u4ee4\uff0c\u901a\u5e38\u4f7f\u7528\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff08SQL\uff09\u4f86\u7de8\u5beb\u3002\u9019\u4e9b\u8a9e\u53e5\u53ef\u4ee5\u5206\u70ba\u5e7e\u7a2e\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/strong>\uff1a\u7528\u65bc\u5b9a\u7fa9\u6578\u64da\u5eab\u7d50\u69cb\u7684\u8a9e\u53e5\uff0c\u5982 <code>CREATE<\/code>\u3001<code>ALTER<\/code> \u548c <code>DROP<\/code>\u3002<\/li>\n<li><strong>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/strong>\uff1a\u7528\u65bc\u64cd\u4f5c\u6578\u64da\u7684\u8a9e\u53e5\uff0c\u5982 <code>SELECT<\/code>\u3001<code>INSERT<\/code>\u3001<code>UPDATE<\/code> \u548c <code>DELETE<\/code>\u3002<\/li>\n<li><strong>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09<\/strong>\uff1a\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\u7684\u8a9e\u53e5\uff0c\u5982 <code>GRANT<\/code> \u548c <code>REVOKE<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%b7%e8%a1%8c%e9%81%8e%e7%a8%8b-wmIjqJXxGm\">\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u904e\u7a0b<\/h2>\n<p>\u7576\u7528\u6236\u767c\u9001\u4e00\u689d\u6578\u64da\u5eab\u8a9e\u53e5\u6642\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u6703\u7d93\u6b77\u4e00\u7cfb\u5217\u7684\u6b65\u9a5f\u4f86\u57f7\u884c\u8a72\u8a9e\u53e5\u3002\u9019\u4e9b\u6b65\u9a5f\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u968e\u6bb5\uff1a<\/p>\n<h3 id=\"1-%e8%aa%9e%e6%b3%95%e5%88%86%e6%9e%90-wmIjqJXxGm\">1. \u8a9e\u6cd5\u5206\u6790<\/h3>\n<p>\u5728\u9019\u500b\u968e\u6bb5\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u6703\u6aa2\u67e5\u8a9e\u53e5\u7684\u8a9e\u6cd5\u662f\u5426\u6b63\u78ba\u3002\u9019\u662f\u901a\u904e\u89e3\u6790\u5668\u4f86\u5b8c\u6210\u7684\uff0c\u89e3\u6790\u5668\u6703\u5c07\u8a9e\u53e5\u8f49\u63db\u70ba\u4e00\u500b\u6a39\u72c0\u7d50\u69cb\uff0c\u7a31\u70ba\u8a9e\u6cd5\u6a39\u3002\u5982\u679c\u8a9e\u53e5\u7684\u8a9e\u6cd5\u4e0d\u6b63\u78ba\uff0c\u7cfb\u7d71\u5c07\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<h3 id=\"2-%e8%aa%9e%e7%be%a9%e5%88%86%e6%9e%90-wmIjqJXxGm\">2. \u8a9e\u7fa9\u5206\u6790<\/h3>\n<p>\u8a9e\u6cd5\u5206\u6790\u5b8c\u6210\u5f8c\uff0c\u7cfb\u7d71\u6703\u9032\u884c\u8a9e\u7fa9\u5206\u6790\uff0c\u4ee5\u78ba\u4fdd\u8a9e\u53e5\u7684\u908f\u8f2f\u6b63\u78ba\u6027\u3002\u4f8b\u5982\uff0c\u6aa2\u67e5\u6240\u5f15\u7528\u7684\u8868\u548c\u5217\u662f\u5426\u5b58\u5728\uff0c\u4e26\u4e14\u7528\u6236\u662f\u5426\u6709\u6b0a\u9650\u57f7\u884c\u8a72\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"3-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-wmIjqJXxGm\">3. \u67e5\u8a62\u512a\u5316<\/h3>\n<p>\u5728\u9019\u500b\u968e\u6bb5\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u6703\u751f\u6210\u4e00\u500b\u57f7\u884c\u8a08\u5283\uff0c\u9019\u662f\u4e00\u500b\u6700\u4f73\u5316\u7684\u6b65\u9a5f\u5e8f\u5217\uff0c\u7528\u65bc\u57f7\u884c\u67e5\u8a62\u3002\u67e5\u8a62\u512a\u5316\u5668\u6703\u8003\u616e\u591a\u7a2e\u56e0\u7d20\uff0c\u5982\u7d22\u5f15\u7684\u4f7f\u7528\u3001\u8868\u7684\u9023\u63a5\u9806\u5e8f\u7b49\uff0c\u4ee5\u78ba\u4fdd\u67e5\u8a62\u7684\u57f7\u884c\u6548\u7387\u3002<\/p>\n<h3 id=\"4-%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83%e7%9a%84%e5%9f%b7%e8%a1%8c-wmIjqJXxGm\">4. \u57f7\u884c\u8a08\u5283\u7684\u57f7\u884c<\/h3>\n<p>\u4e00\u65e6\u751f\u6210\u4e86\u57f7\u884c\u8a08\u5283\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u5c07\u958b\u59cb\u57f7\u884c\u8a72\u8a08\u5283\u3002\u9019\u53ef\u80fd\u6d89\u53ca\u5230\u5f9e\u78c1\u789f\u4e2d\u8b80\u53d6\u6578\u64da\u3001\u57f7\u884c\u8a08\u7b97\u3001\u66f4\u65b0\u6578\u64da\u7b49\u64cd\u4f5c\u3002\u57f7\u884c\u904e\u7a0b\u4e2d\uff0c\u7cfb\u7d71\u6703\u6839\u64da\u9700\u8981\u9032\u884c\u932f\u8aa4\u8655\u7406\u548c\u4e8b\u52d9\u7ba1\u7406\u3002<\/p>\n<h3 id=\"5-%e8%bf%94%e5%9b%9e%e7%b5%90%e6%9e%9c-wmIjqJXxGm\">5. \u8fd4\u56de\u7d50\u679c<\/h3>\n<p>\u6700\u5f8c\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u5c07\u57f7\u884c\u7d50\u679c\u8fd4\u56de\u7d66\u7528\u6236\u3002\u5c0d\u65bc\u67e5\u8a62\u8a9e\u53e5\uff0c\u9019\u901a\u5e38\u662f\u67e5\u8a62\u7d50\u679c\u7684\u6578\u64da\u96c6\uff1b\u5c0d\u65bc\u66f4\u65b0\u8a9e\u53e5\uff0c\u5247\u662f\u64cd\u4f5c\u6210\u529f\u6216\u5931\u6557\u7684\u72c0\u614b\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e7%b0%a1%e5%96%ae%e7%9a%84%e6%9f%a5%e8%a9%a2%e5%9f%b7%e8%a1%8c-wmIjqJXxGm\">\u793a\u4f8b\uff1a\u7c21\u55ae\u7684\u67e5\u8a62\u57f7\u884c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 SQL \u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT name, age FROM users WHERE age &gt; 18;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u5c07\u9996\u5148\u9032\u884c\u8a9e\u6cd5\u548c\u8a9e\u7fa9\u5206\u6790\uff0c\u7136\u5f8c\u751f\u6210\u57f7\u884c\u8a08\u5283\uff0c\u63a5\u8457\u57f7\u884c\u8a72\u8a08\u5283\u4e26\u8fd4\u56de\u6240\u6709\u5e74\u9f61\u5927\u65bc 18 \u6b72\u7684\u7528\u6236\u7684\u59d3\u540d\u548c\u5e74\u9f61\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wmIjqJXxGm\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u904e\u7a0b\u662f\u4e00\u500b\u8907\u96dc\u800c\u9ad8\u6548\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u591a\u500b\u968e\u6bb5\u7684\u6aa2\u67e5\u548c\u512a\u5316\u3002\u7406\u89e3\u9019\u4e00\u904e\u7a0b\u4e0d\u50c5\u6709\u52a9\u65bc\u958b\u767c\u8005\u7de8\u5beb\u66f4\u9ad8\u6548\u7684\u67e5\u8a62\uff0c\u9084\u80fd\u5e6b\u52a9\u4ed6\u5011\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u61c9\u7528\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u638c\u63e1\u6578\u64da\u5eab\u7684\u904b\u4f5c\u539f\u7406\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u6211\u5011\u63d0\u4f9b\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u6709\u52a9\u65bc\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57f7\u884c\u65b9\u5f0f\uff0c\u63a2\u7d22\u67e5\u8a62\u89e3\u6790\u3001\u512a\u5316\u3001\u57f7\u884c\u53ca\u7d50\u679c\u8fd4\u56de\u7684\u904e\u7a0b\uff0c\u63d0\u5347\u6578\u64da\u8655\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-187606","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187606","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=187606"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187606\/revisions"}],"predecessor-version":[{"id":187607,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187606\/revisions\/187607"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}