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Closed 10 years ago.
What is configuration file? What does it contain?
How it is different from a plain ASCII data file?
A silly extra question: What is meta data?
A configuration file is a file that contains configuration data.
It could be any kind of file: XML, .properties, text, INI, etc...
A configuration file generally contains info about how a program works or operates.
A data file generally provides data to a program.
Both files may or may not be ASCII files.
Metadata is data about data.
If your program displays data about houses, an example of metadata might be whether or not to display addresses.
Such data does not describe a house; it is data about how to display house data (ie data about data).
refer http://en.wikipedia.org/wiki/Configuration_file for all detail info about Configuration file....
and about meta data http://en.wikipedia.org/wiki/Meta_data
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Closed 9 years ago.
Now i can figure out is through 'Content-Disposition' and 'Content-Type'!
Is there any tips about know the file type and name from the http response?
A HTTP response is a resource, not a file, so it has neither file type nor file name.
For some resources the server uses a corresponding file to create it, like for example most images. In that case the name of the resource is usually the same as the name of the file, and the content type is derived from the file type.
For some resources the server returns a file name in the content disposition header. This can be the same as the name of a file on the server, but it can just as well be a file name that the browser sent to the server when the file was uploaded, and the data is stored under a different file name on the server, or perhaps stored in a completely different way.
Some resources are created by the server when needed, typically by running a script source or by calling some compiled code to generate it. In that case the name of the resource can correspond to a file on the server, but it's not the file that is returned but the result of processing the file.
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Closed 9 years ago.
Can you please tell me how I can update the data from my extjs datagrid to JSON file?. My code works fine for loading static data from JSON file. Also, the data gets updated when I edit the data. But I am not aware how to store the updated data to JSON file so that it will be reflected even when I do page refresh or bounce my server.
Thanks
Murali S
You can't just update a json file, something on the server (PHP, Java, C#, other) need to do it. If you could just directly update a static file from the client, it would be a giant security hole.
There are examples in the Ext JS SDK that show you how to send data to the server and persist it.
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Closed 10 years ago.
Is it possible to store pictures,sounds,videos in SQL Database (or any other database) ? If yes what format should it be and please specifiy about the special settings that has to be configured if any. Thanks in advance.
In MySQL you can store any binary content in a table using the BINARY or VARBINARY data type for a column. Quite all database system as such a data type. It can be used to store a full file content such as picture, video, sound,... or just a binary snippet.
Nevertheless, storing binary files in a database is considered as a bad practice, because it quite always brings to disappointments. Indeed, a file stored in database cannot be easily processed for a download, an inclusion in a HTML page, a streaming, ... . And it is quite always complicated to manipulate because of its length. Most often, a file sorted in a database is disadvantageous compared to a file stored in a directory. Its is advised to store the file name in the database base, and save the actual file in a physical directory.
Although its generally not recommended to store images inside the Database, its better to store path of the image. Nevethless the images can be stored in the database by using a longblob datatype. Check out this example from MySql forums.
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Closed 11 years ago.
I am creating a html5 web app. In that web app Contents are loaded dynamically from the XML feed. The feed XML has list of image URLs. I added that URLs in the cache.manifest file to support offline access. In that list of URLs if one URL is giving 404, because of that caching is not working how to solve this issue.
Manifest cache files will fail (and therefore your appcache will be incomplete) if there are any errors at all. So, if the close.png URL is throwing a 404, remove it or correct it—your cache won't work otherwise, simple as that.
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Closed 12 years ago.
i need some information about csv extension, what is the use of csv extention, how to use it, any simple example
Here is all you could possibly want to know about CSV.
And if that doesn't satisfy your unquestionable thirst for knowledge, try the references from Wikipedia and Google.
It's just a way to indicate the type of the file, nothing more, nothing less.
Could call the file XXXX.doodleberry for all the operating system or the application using it could care about it.