Question

无法更新物理设备上的sqlite表。我在网上搜索，我更新了权限（chmod 777），将sqlite复制到文档文件夹。但它仍然无法正常工作。我尝试拨打sqlite3_open或sqlite3_open_v2，但两者都有相同的错误。下面是我的一些编码片段。非常感谢。

- (void) copyDatabaseIfNeeded {

    //Using NSFileManager we can perform many file system operations.
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSError *error;

    NSString *dbPath = [self getDBPath];
    BOOL success = [fileManager fileExistsAtPath:dbPath];

    if(!success) {
        NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"xx.sqlite"];
        success = [fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&error];   
        if (!success)
            NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]);
    }
}

Try1

sqlite3_open([url UTF8String], &database) == SQLITE_OK) 
sqlite3_exec(database, insertSql, NULL, NULL, &insertErrorMsg)==SQLITE_OK)

Try2

sqlite3_open_v2([url UTF8String], &database, SQLITE_OPEN_READWRITE, NULL);
sqlite3_exec(database, insertSql, NULL, NULL, &insertErrorMsg)==SQLITE_OK)

iOS尝试编写只读数据库

0 个答案: