{"id":183642,"date":"2024-11-10T06:31:19","date_gmt":"2024-11-09T22:31:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183642\/"},"modified":"2024-11-10T06:31:19","modified_gmt":"2024-11-09T22:31:19","slug":"%e4%bd%bf%e7%94%a8c%e7%b7%a8%e7%a8%8b%e8%aa%9e%e8%a8%80%e6%9f%a5%e8%a9%a2sql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%b9%e6%b3%95%e8%a9%b3%e8%a7%a3-sql%e5%a6%82%e4%bd%95%e7%94%a8c-%e6%9f%a5%e8%a9%a2%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183642\/","title":{"rendered":"\u4f7f\u7528C\u7de8\u7a0b\u8a9e\u8a00\u67e5\u8a62SQL\u6578\u64da\u5eab\u65b9\u6cd5\u8a73\u89e3 (sql\u5982\u4f55\u7528c \u67e5\u8a62\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8c%e7%b7%a8%e7%a8%8b%e8%aa%9e%e8%a8%80%e6%9f%a5%e8%a9%a2sql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%b9%e6%b3%95%e8%a9%b3%e8%a7%a3-GIZsjGCdYO\">\u4f7f\u7528C\u7de8\u7a0b\u8a9e\u8a00\u67e5\u8a62SQL\u6578\u64da\u5eab\u65b9\u6cd5\u8a73\u89e3<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u80fd\u5920\u6709\u6548\u5730\u67e5\u8a62\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u5fc5\u5099\u7684\u6280\u80fd\u4e4b\u4e00\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\u89c0\uff0c\u4f46\u5b83\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528C\u7de8\u7a0b\u8a9e\u8a00\u67e5\u8a62SQL\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"1-%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-GIZsjGCdYO\">1. \u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u7684\u958b\u767c\u74b0\u5883\u4e2d\u5df2\u5b89\u88dd\u4e86\u4ee5\u4e0b\u7d44\u4ef6\uff1a<\/p>\n<ul>\n<li>\u4e00\u500bC\u7de8\u8b6f\u5668\uff08\u5982GCC\uff09<\/li>\n<li>MySQL\u6578\u64da\u5eab\u670d\u52d9\u5668<\/li>\n<li>MySQL C API\u5eab\uff08libmysqlclient\uff09<\/li>\n<\/ul>\n<p>\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88ddMySQL\u958b\u767c\u5eab\uff1a<\/p>\n<pre><code>sudo apt-get install libmysqlclient-dev<\/code><\/pre>\n<h2 id=\"2-%e9%80%a3%e6%8e%a5%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab-GIZsjGCdYO\">2. \u9023\u63a5\u5230\u6578\u64da\u5eab<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728C\u7a0b\u5e8f\u4e2d\u5305\u542bMySQL\u7684\u982d\u6587\u4ef6\uff0c\u7136\u5f8c\u521d\u59cb\u5316MySQL\u5eab\uff0c\u4e26\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n<pre><code>#include \n#include \n#include \n\nint main() {\n    MYSQL *conn;\n    conn = mysql_init(NULL);\n\n    if (conn == NULL) {\n        fprintf(stderr, \"mysql_init() failedn\");\n        return EXIT_FAILURE;\n    }\n\n    if (mysql_real_connect(conn, \"localhost\", \"username\", \"password\", \"database_name\", 0, NULL, 0) == NULL) {\n        fprintf(stderr, \"mysql_real_connect() failedn\");\n        mysql_close(conn);\n        return EXIT_FAILURE;\n    }\n\n    printf(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01n\");\n    mysql_close(conn);\n    return EXIT_SUCCESS;\n}<\/code><\/pre>\n<h2 id=\"3-%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2-GIZsjGCdYO\">3. \u57f7\u884c\u67e5\u8a62<\/h2>\n<p>\u9023\u63a5\u5230\u6578\u64da\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u57f7\u884c\u67e5\u8a62\u4e26\u7372\u53d6\u7d50\u679c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>MYSQL_RES *res;\nMYSQL_ROW row;\n\nif (mysql_query(conn, \"SELECT * FROM your_table\")) {\n    fprintf(stderr, \"SELECT * failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n\nres = mysql_store_result(conn);\nif (res == NULL) {\n    fprintf(stderr, \"mysql_store_result() failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n\nwhile ((row = mysql_fetch_row(res)) != NULL) {\n    printf(\"%sn\", row[0]); \/\/ \u5047\u8a2d\u7b2c\u4e00\u5217\u662f\u60a8\u60f3\u8981\u7684\u6578\u64da\n}\n\nmysql_free_result(res);\nmysql_close(conn);\nreturn EXIT_SUCCESS;<\/code><\/pre>\n<h2 id=\"4-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-GIZsjGCdYO\">4. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4f7f\u7528mysql_error()\u51fd\u6578\u53ef\u4ee5\u7372\u53d6\u6700\u8fd1\u4e00\u6b21\u64cd\u4f5c\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u9019\u5c0d\u65bc\u8abf\u8a66\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"5-%e5%b0%8f%e7%b5%90-GIZsjGCdYO\">5. \u5c0f\u7d50<\/h2>\n<p>\u4f7f\u7528C\u8a9e\u8a00\u67e5\u8a62SQL\u6578\u64da\u5eab\u7684\u904e\u7a0b\u96d6\u7136\u76f8\u5c0d\u7e41\u7463\uff0c\u4f46\u901a\u904e\u6b63\u78ba\u7684\u6b65\u9a5f\u548c\u4ee3\u78bc\uff0c\u60a8\u53ef\u4ee5\u9ad8\u6548\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u5f9e\u9023\u63a5\u6578\u64da\u5eab\u5230\u57f7\u884c\u67e5\u8a62\uff0c\u6bcf\u4e00\u6b65\u90fd\u9700\u8981\u8b39\u614e\u8655\u7406\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u548c\u6578\u64da\u5eab\u3002Server.HK\u63d0\u4f9b\u9ad8\u6548\u7684\u670d\u52d9\u5668\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0e\u4f7f\u7528C\u7de8\u7a0b\u8a9e\u8a00\u67e5\u8a62SQL\u6578\u64da\u5eab\u7684\u65b9\u6cd5\uff0c\u63d0\u4f9b\u8a73\u7d30\u6b65\u9a5f\u8207\u7bc4\u4f8b\uff0c\u52a9\u4f60\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\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-183642","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183642","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=183642"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183642\/revisions"}],"predecessor-version":[{"id":183643,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183642\/revisions\/183643"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}