{"id":179530,"date":"2024-11-09T02:35:17","date_gmt":"2024-11-08T18:35:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179530\/"},"modified":"2024-11-09T02:35:18","modified_gmt":"2024-11-08T18:35:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-c-%e7%a8%8b%e5%ba%8f%e4%b8%ad%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-%e7%b0%a1%e5%96%ae%e6%98%93%e5%ad%b8%e6%95%99%e7%a8%8b-c-%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179530\/","title":{"rendered":"\u5982\u4f55\u5728 C \u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u6578\u64da\u5eab\u8868\u2014\u2014\u7c21\u55ae\u6613\u5b78\u6559\u7a0b (c \u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u6578\u64da\u5eab\u8868)"},"content":{"rendered":"

\u5982\u4f55\u5728 C \u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u6578\u64da\u5eab\u8868\u2014\u2014\u7c21\u55ae\u6613\u5b78\u6559\u7a0b<\/h1>\n

\u5728\u73fe\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u90fd\u626e\u6f14\u8457\u95dc\u9375\u7684\u89d2\u8272\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 C \u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u6578\u64da\u5eab\u8868\uff0c\u4e26\u63d0\u4f9b\u7c21\u55ae\u6613\u5b78\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n

1. \u78ba\u5b9a\u6578\u64da\u5eab\u985e\u578b<\/h2>\n

\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u4f60\u5c07\u4f7f\u7528\u7684\u6578\u64da\u5eab\u985e\u578b\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u6709 MySQL\u3001SQLite \u548c PostgreSQL \u7b49\u3002\u6bcf\u7a2e\u6578\u64da\u5eab\u90fd\u6709\u5176\u7279\u5b9a\u7684 API \u548c\u9a45\u52d5\u7a0b\u5e8f\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u5011\u5c07\u4ee5 SQLite \u70ba\u4f8b\uff0c\u56e0\u70ba\u5b83\u8f15\u91cf\u4e14\u6613\u65bc\u4f7f\u7528\u3002<\/p>\n

2. \u5b89\u88dd SQLite<\/h2>\n

\u5728\u4f7f\u7528 SQLite \u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5b89\u88dd SQLite \u7684\u958b\u767c\u5eab\u3002\u5c0d\u65bc\u5927\u591a\u6578 Linux \u767c\u884c\u7248\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u5b89\u88dd\uff1a<\/p>\n

sudo apt-get install libsqlite3-dev<\/code><\/pre>\n
\u5c0d\u65bc Windows \u7528\u6236\uff0c\u53ef\u4ee5\u5f9e SQLite \u5b98\u65b9\u7db2\u7ad9<\/a> \u4e0b\u8f09\u76f8\u61c9\u7684\u5b89\u88dd\u5305\u3002<\/p>\n
3. \u5275\u5efa\u6578\u64da\u5eab\u548c\u8868<\/h2>\n
\u5728 C \u7a0b\u5e8f\u4e2d\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n
3.1. \u5305\u542b\u5fc5\u8981\u7684\u982d\u6587\u4ef6<\/h3>\n
#include <stdio.h>\n#include <stdlib.h>\n#include <sqlite3.h><\/code><\/pre>\n
3.2. \u5275\u5efa\u6578\u64da\u5eab<\/h3>\n
\u4f7f\u7528 sqlite3_open \u51fd\u6578\u4f86\u5275\u5efa\u6216\u6253\u958b\u6578\u64da\u5eab\uff1a<\/p>\n
sqlite3 *db;\nint exit = sqlite3_open(\"example.db\", &db);\nif (exit) {\n    fprintf(stderr, \"Can't open database: %sn\", sqlite3_errmsg(db));\n    return 1;\n} else {\n    fprintf(stderr, \"Opened database successfullyn\");\n}<\/code><\/pre>\n
3.3. \u5275\u5efa\u8868<\/h3>\n
\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u5275\u5efa\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u7528\u6236\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n
const char *sql = \"CREATE TABLE USER(\"\n                   \"ID INT PRIMARY KEY NOT NULL,\"\n                   \"NAME TEXT NOT NULL,\"\n                   \"AGE INT NOT NULL);\";\nchar *errMsg;\nexit = sqlite3_exec(db, sql, 0, 0, &errMsg);\nif (exit != SQLITE_OK) {\n    fprintf(stderr, \"SQL error: %sn\", errMsg);\n    sqlite3_free(errMsg);\n} else {\n    fprintf(stdout, \"Table created successfullyn\");\n}<\/code><\/pre>\n
4. \u95dc\u9589\u6578\u64da\u5eab<\/h2>\n
\u5728\u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6578\u64da\u5eab\uff1a<\/p>\n
sqlite3_close(db);<\/code><\/pre>\n
5. \u5b8c\u6574\u793a\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u5b8c\u6574\u7684 C \u7a0b\u5e8f\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868\uff1a<\/p>\n
#include <stdio.h>\n#include <stdlib.h>\n#include <sqlite3.h>\n\nint main() {\n    sqlite3 *db;\n    int exit = sqlite3_open(\"example.db\", &db);\n    if (exit) {\n        fprintf(stderr, \"Can't open database: %sn\", sqlite3_errmsg(db));\n        return 1;\n    } else {\n        fprintf(stderr, \"Opened database successfullyn\");\n    }\n\n    const char *sql = \"CREATE TABLE USER(\"\n                      \"ID INT PRIMARY KEY NOT NULL,\"\n                      \"NAME TEXT NOT NULL,\"\n                      \"AGE INT NOT NULL);\";\n    char *errMsg;\n    exit = sqlite3_exec(db, sql, 0, 0, &errMsg);\n    if (exit != SQLITE_OK) {\n        fprintf(stderr, \"SQL error: %sn\", errMsg);\n        sqlite3_free(errMsg);\n    } else {\n        fprintf(stdout, \"Table created successfullyn\");\n    }\n\n    sqlite3_close(db);\n    return 0;\n}<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u5728 C \u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u6578\u64da\u5eab\u8868\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u901a\u904e\u4f7f\u7528 SQLite \u7684 API\uff0c\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u548c\u7ba1\u7406\u6578\u64da\u5eab\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5b58\u5132\u548c\u6aa2\u7d22\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 \u9999\u6e2fVPS<\/a> \u4f86\u642d\u5efa\u60a8\u7684\u6578\u64da\u5eab\u670d\u52d9\u5668\uff0c\u9019\u6a23\u53ef\u4ee5\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u5728 C \u7a0b\u5e8f\u4e2d\u8f15\u9b06\u6dfb\u52a0\u6578\u64da\u5eab\u8868\uff0c\u901a\u904e\u7c21\u55ae\u6613\u61c2\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\uff0c\u5feb\u901f\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-179530","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179530","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=179530"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179530\/revisions"}],"predecessor-version":[{"id":179531,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179530\/revisions\/179531"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}