{"id":186162,"date":"2024-11-11T03:37:21","date_gmt":"2024-11-10T19:37:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186162\/"},"modified":"2024-11-11T03:37:21","modified_gmt":"2024-11-10T19:37:21","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e5%90%8d-%e6%98%af%e5%90%a6%e6%94%af%e6%8c%81%e4%bd%bf%e7%94%a8%e8%ae%8a%e9%87%8f%e5%91%bd%e5%90%8d%ef%bc%9f%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186162\/","title":{"rendered":"\u6578\u64da\u5eab\u8868\u540d\u2014\u2014\u662f\u5426\u652f\u6301\u4f7f\u7528\u8b8a\u91cf\u547d\u540d\uff1f\uff08\u6578\u64da\u5eab\u4e2d\u8868\u540d\u80fd\u4e0d\u80fd\u70ba\u8b8a\u91cf\uff09"},"content":{"rendered":"<h1 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a1%a8%e5%90%8d%e8%83%bd%e5%90%a6%e4%bd%bf%e7%94%a8%e8%ae%8a%e9%87%8f-nIAhnxltvJ\">\u6578\u64da\u5eab\u4e2d\u8868\u540d\u80fd\u5426\u4f7f\u7528\u8b8a\u91cf<\/h2>\n<p>\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u7684\u8868\u540d\u662f\u975c\u614b\u7684\uff0c\u9019\u610f\u5473\u8457\u5728\u5275\u5efa\u8868\u6642\uff0c\u8868\u540d\u5fc5\u9808\u662f\u56fa\u5b9a\u7684\u3002\u7136\u800c\uff0c\u67d0\u4e9b\u6578\u64da\u5eab\u7cfb\u7d71\u5141\u8a31\u4f7f\u7528\u52d5\u614b SQL\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u57f7\u884c\u6642\u751f\u6210 SQL \u8a9e\u53e5\uff0c\u5f9e\u800c\u4f7f\u7528\u8b8a\u91cf\u4f86\u6307\u5b9a\u8868\u540d\u3002<\/p>\n<h3 id=\"%e5%8b%95%e6%85%8b-sql-%e7%9a%84%e4%bd%bf%e7%94%a8-nIAhnxltvJ\">\u52d5\u614b SQL \u7684\u4f7f\u7528<\/h3>\n<p>\u52d5\u614b SQL \u662f\u6307\u5728\u904b\u884c\u6642\u751f\u6210\u548c\u57f7\u884c SQL \u8a9e\u53e5\u7684\u6280\u8853\u3002\u9019\u901a\u5e38\u901a\u904e\u7de8\u7a0b\u8a9e\u8a00\uff08\u5982 PHP\u3001Python \u6216 Java\uff09\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff0c\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u9019\u6a23\u4f7f\u7528\u8b8a\u91cf\u4f86\u6307\u5b9a\u8868\u540d\uff1a<\/p>\n<pre><code>\n$table_name = \"user_data\";\n$sql = \"SELECT * FROM \" . $table_name;\n$result = mysqli_query($conn, $sql);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>$table_name<\/code> \u662f\u4e00\u500b\u8b8a\u91cf\uff0c\u5b83\u7684\u503c\u5728\u904b\u884c\u6642\u88ab\u7528\u4f86\u69cb\u5efa SQL \u8a9e\u53e5\u3002\u9019\u6a23\u7684\u505a\u6cd5\u96d6\u7136\u9748\u6d3b\uff0c\u4f46\u4e5f\u9700\u8981\u6ce8\u610f SQL \u6ce8\u5165\u7684\u98a8\u96aa\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u52d5\u614b SQL \u6642\uff0c\u61c9\u8a72\u63a1\u53d6\u9069\u7576\u7684\u5b89\u5168\u63aa\u65bd\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e8%ae%8a%e9%87%8f%e5%91%bd%e5%90%8d%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-nIAhnxltvJ\">\u4f7f\u7528\u8b8a\u91cf\u547d\u540d\u7684\u512a\u7f3a\u9ede<\/h3>\n<p>\u4f7f\u7528\u8b8a\u91cf\u4f86\u547d\u540d\u8868\u540d\u6709\u5176\u512a\u7f3a\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u512a\u9ede\uff1a<\/strong>\u9748\u6d3b\u6027\u9ad8\uff0c\u53ef\u4ee5\u6839\u64da\u9700\u8981\u52d5\u614b\u751f\u6210\u8868\u540d\uff0c\u9069\u5408\u67d0\u4e9b\u7279\u5b9a\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<li><strong>\u7f3a\u9ede\uff1a<\/strong>\u589e\u52a0\u4e86\u4ee3\u78bc\u7684\u8907\u96dc\u6027\uff0c\u4e26\u4e14\u53ef\u80fd\u5f15\u5165\u5b89\u5168\u98a8\u96aa\uff0c\u5982 SQL \u6ce8\u5165\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-nIAhnxltvJ\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u8868\u540d\u901a\u5e38\u662f\u975c\u614b\u7684\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u901a\u904e\u52d5\u614b SQL 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