{"id":171701,"date":"2024-11-07T04:56:18","date_gmt":"2024-11-06T20:56:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171701\/"},"modified":"2024-11-07T04:56:19","modified_gmt":"2024-11-06T20:56:19","slug":"%e8%bc%95%e9%ac%86%e6%90%9e%e5%ae%9a%ef%bc%81fmdb%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b8%85%e7%a9%ba%e6%95%99%e7%a8%8b-fmdb-%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%ba%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171701\/","title":{"rendered":"\u8f15\u9b06\u641e\u5b9a\uff01FMDB\u6578\u64da\u5eab\u6e05\u7a7a\u6559\u7a0b (fmdb \u5982\u4f55\u6e05\u7a7a\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e8%bc%95%e9%ac%86%e6%90%9e%e5%ae%9a%ef%bc%81fmdb%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b8%85%e7%a9%ba%e6%95%99%e7%a8%8b-fmdb-%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%ba%e6%95%b8%e6%93%9a%e5%ba%ab-wsvNikStRQ\">\u8f15\u9b06\u641e\u5b9a\uff01FMDB\u6578\u64da\u5eab\u6e05\u7a7a\u6559\u7a0b (fmdb 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id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8fmdb%e6%b8%85%e7%a9%ba%e6%95%b8%e6%93%9a%e5%ba%ab-wsvNikStRQ\">\u5982\u4f55\u4f7f\u7528FMDB\u6e05\u7a7a\u6578\u64da\u5eab<\/h2>\n<p>\u6e05\u7a7a\u6578\u64da\u5eab\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e3b\u8981\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e5%b0%8e%e5%85%a5fmdb-wsvNikStRQ\">\u6b65\u9a5f1\uff1a\u5c0e\u5165FMDB<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u7684\u9805\u76ee\u4e2d\u5df2\u7d93\u5c0e\u5165\u4e86FMDB\u5eab\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528CocoaPods\u4f86\u5b89\u88ddFMDB\uff1a<\/p>\n<pre><code>pod 'FMDB'<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e6%89%93%e9%96%8b%e6%95%b8%e6%93%9a%e5%ba%ab-wsvNikStRQ\">\u6b65\u9a5f2\uff1a\u6253\u958b\u6578\u64da\u5eab<\/h3>\n<p>\u4f7f\u7528FMDB\u6253\u958b\u6578\u64da\u5eab\uff0c\u9019\u901a\u5e38\u662f\u5728\u61c9\u7528\u555f\u52d5\u6642\u9032\u884c\u7684\uff1a<\/p>\n<pre><code>NSString *dbPath = [self getDatabasePath];\nFMDatabase *database = [FMDatabase databaseWithPath:dbPath];\n\nif (![database open]) {\n    NSLog(@\"\u7121\u6cd5\u6253\u958b\u6578\u64da\u5eab\");\n    return;\n}<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e5%9f%b7%e8%a1%8c%e6%b8%85%e7%a9%ba%e6%93%8d%e4%bd%9c-wsvNikStRQ\">\u6b65\u9a5f3\uff1a\u57f7\u884c\u6e05\u7a7a\u64cd\u4f5c<\/h3>\n<p>\u8981\u6e05\u7a7a\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u522a\u9664\u6240\u6709\u8868\u4e2d\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff1a<\/p>\n<pre><code>NSString *deleteSQL = @\"DELETE FROM users\";\nif (![database executeUpdate:deleteSQL]) {\n    NSLog(@\"\u6e05\u7a7a\u6578\u64da\u5eab\u5931\u6557: %@\", [database lastErrorMessage]);\n} else {\n    NSLog(@\"\u6578\u64da\u5eab\u6e05\u7a7a\u6210\u529f\");\n}<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f4%ef%bc%9a%e9%97%9c%e9%96%89%e6%95%b8%e6%93%9a%e5%ba%ab-wsvNikStRQ\">\u6b65\u9a5f4\uff1a\u95dc\u9589\u6578\u64da\u5eab<\/h3>\n<p>\u5b8c\u6210\u64cd\u4f5c\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>[database close];<\/code><\/pre>\n<h2 id=\"%e5%ae%8c%e6%95%b4%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b-wsvNikStRQ\">\u5b8c\u6574\u4ee3\u78bc\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5b8c\u6574\u7684\u6e05\u7a7a\u6578\u64da\u5eab\u7684\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n<pre><code>- (void)clearDatabase {\n    NSString *dbPath = [self getDatabasePath];\n    FMDatabase *database = [FMDatabase databaseWithPath:dbPath];\n\n    if (![database open]) {\n        NSLog(@\"\u7121\u6cd5\u6253\u958b\u6578\u64da\u5eab\");\n        return;\n    }\n\n    NSString *deleteSQL = @\"DELETE FROM users\";\n    if (![database executeUpdate:deleteSQL]) {\n        NSLog(@\"\u6e05\u7a7a\u6578\u64da\u5eab\u5931\u6557: %@\", [database lastErrorMessage]);\n    } else {\n        NSLog(@\"\u6578\u64da\u5eab\u6e05\u7a7a\u6210\u529f\");\n    }\n\n    [database close];\n}<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-wsvNikStRQ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u6e05\u7a7a\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u8acb\u78ba\u4fdd\u9019\u662f\u4f60\u60f3\u8981\u7684\u64cd\u4f5c\uff0c\u56e0\u70ba\u9019\u5c07\u6c38\u4e45\u522a\u9664\u6240\u6709\u6578\u64da\u3002\u5efa\u8b70\u5728\u9032\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4e1f\u5931\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<h2 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