{"id":60229,"date":"2024-10-13T01:07:14","date_gmt":"2024-10-12T17:07:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60229\/"},"modified":"2024-10-13T01:07:14","modified_gmt":"2024-10-12T17:07:14","slug":"c%e4%b8%ad%e4%bd%bf%e7%94%a8dataset%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%96%b9%e6%b3%95-c%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-dataset","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60229\/","title":{"rendered":"C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u65b9\u6cd5 (c\u6578\u64da\u5eab\u9023\u63a5 dataset)"},"content":{"rendered":"<h1 id=\"c%e4%b8%ad%e4%bd%bf%e7%94%a8dataset%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%96%b9%e6%b3%95-aFqyjExOZG\">C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u65b9\u6cd5<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002C\u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u5e95\u5c64\u7de8\u7a0b\u8a9e\u8a00\uff0c\u96d6\u7136\u4e0d\u5982\u9ad8\u7d1a\u8a9e\u8a00\u90a3\u6a23\u76f4\u63a5\u652f\u6301\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u4f46\u901a\u904e\u9069\u7576\u7684\u5eab\u548c\u5de5\u5177\uff0c\u6211\u5011\u4ecd\u7136\u53ef\u4ee5\u6709\u6548\u5730\u9023\u63a5\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afdataset%ef%bc%9f-aFqyjExOZG\">\u4ec0\u9ebc\u662fDataSet\uff1f<\/h2>\n<p>DataSet\u662f\u4e00\u7a2e\u5728\u5167\u5b58\u4e2d\u5b58\u5132\u6578\u64da\u7684\u7d50\u69cb\uff0c\u901a\u5e38\u7528\u65bc\u8655\u7406\u4f86\u81ea\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u5b83\u53ef\u4ee5\u770b\u4f5c\u662f\u4e00\u500b\u6578\u64da\u7684\u96c6\u5408\uff0c\u5305\u542b\u591a\u500b\u8868\u683c\u3001\u884c\u548c\u5217\u3002DataSet\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u5b83\u80fd\u5920\u5728\u4e0d\u76f4\u63a5\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u60c5\u6cc1\u4e0b\uff0c\u9032\u884c\u6578\u64da\u7684\u64cd\u4f5c\u548c\u8655\u7406\u3002<\/p>\n<h2 id=\"%e5%9c%a8c%e4%b8%ad%e4%bd%bf%e7%94%a8dataset%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-aFqyjExOZG\">\u5728C\u4e2d\u4f7f\u7528DataSet\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u5728C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/li>\n<li>\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<li>\u57f7\u884cSQL\u67e5\u8a62<\/li>\n<li>\u5c07\u7d50\u679c\u5b58\u5132\u5230DataSet\u4e2d<\/li>\n<li>\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<\/ul>\n<h3 id=\"1-%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-aFqyjExOZG\">1. \u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/h3>\n<p>\u5728C\u4e2d\uff0c\u5e38\u7528\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u5305\u62ecMySQL\u7684libmysqlclient\u548cSQLite\u7684SQLite3\u3002\u9019\u4e9b\u9a45\u52d5\u7a0b\u5e8f\u63d0\u4f9b\u4e86API\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n<h3 id=\"2-%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-aFqyjExOZG\">2. \u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528MySQL\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n<pre><code>\n#include \n\nMYSQL *conn;\nconn = mysql_init(NULL);\nif (conn == NULL) {\n    fprintf(stderr, \"mysql_init() failedn\");\n    return EXIT_FAILURE;\n}\n\nif (mysql_real_connect(conn, \"localhost\", \"user\", \"password\", \"database\", 0, NULL, 0) == NULL) {\n    fprintf(stderr, \"mysql_real_connect() failedn\");\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n<\/code><\/pre>\n<h3 id=\"3-%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-aFqyjExOZG\">3. \u57f7\u884cSQL\u67e5\u8a62<\/h3>\n<p>\u4e00\u65e6\u9023\u63a5\u6210\u529f\uff0c\u6211\u5011\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u4f86\u7372\u53d6\u6578\u64da\uff1a<\/p>\n<pre><code>\nif (mysql_query(conn, \"SELECT * FROM table_name\")) {\n    fprintf(stderr, \"SELECT * failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n<\/code><\/pre>\n<h3 id=\"4-%e5%b0%87%e7%b5%90%e6%9e%9c%e5%ad%98%e5%84%b2%e5%88%b0dataset%e4%b8%ad-aFqyjExOZG\">4. \u5c07\u7d50\u679c\u5b58\u5132\u5230DataSet\u4e2d<\/h3>\n<p>\u67e5\u8a62\u7d50\u679c\u53ef\u4ee5\u901a\u904emysql_store_result()\u51fd\u6578\u7372\u53d6\uff0c\u7136\u5f8c\u5c07\u5176\u5b58\u5132\u5230DataSet\u4e2d\uff1a<\/p>\n<pre><code>\nMYSQL_RES *result = mysql_store_result(conn);\nif (result == NULL) {\n    fprintf(stderr, \"mysql_store_result() failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n\n\/\/ \u8655\u7406\u7d50\u679c\u96c6\nMYSQL_ROW row;\nwhile ((row = mysql_fetch_row(result))) {\n    \/\/ \u5c07row\u6578\u64da\u5b58\u5132\u5230DataSet\u4e2d\n}\nmysql_free_result(result);\n<\/code><\/pre>\n<h3 id=\"5-%e9%97%9c%e9%96%89%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-aFqyjExOZG\">5. \u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u6700\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n<pre><code>\nmysql_close(conn);\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-aFqyjExOZG\">\u7e3d\u7d50<\/h2>\n<p>\u5728C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u904e\u7a0b\u96d6\u7136\u76f8\u5c0d\u7e41\u7463\uff0c\u4f46\u901a\u904e\u5408\u9069\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u548cAPI\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u5be6\u73fe\u6578\u64da\u7684\u64cd\u4f5c\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u9069\u7528\u65bcMySQL\uff0c\u9084\u53ef\u4ee5\u64f4\u5c55\u5230\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u5982SQLite\u7b49\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u548c\u9023\u63a5\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22C\u4e2d\u4f7f\u7528DataSet\u9023\u63a5\u6578\u64da\u5eab\u7684\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u9ad8\u6548\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60229","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60229","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60229"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60229\/revisions"}],"predecessor-version":[{"id":60230,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60229\/revisions\/60230"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}