data-storage

问题 I need to store basic data of customer's and cars that they bought and payment schedule of these cars. These data come from GUI, written in Python. I don't have enough experience to use a database system like sql, so I want to store my data in a file as plain text. And it doesn't have to be online. To be able to search and filter them, first I convert my data (lists of lists) to the string then when I need the data re-convert to the regular Python list syntax. I know it is a very brute-force

问题 I need to store basic data of customer's and cars that they bought and payment schedule of these cars. These data come from GUI, written in Python. I don't have enough experience to use a database system like sql, so I want to store my data in a file as plain text. And it doesn't have to be online. To be able to search and filter them, first I convert my data (lists of lists) to the string then when I need the data re-convert to the regular Python list syntax. I know it is a very brute-force

问题 mysql> SELECT FROM_UNIXTIME(2145916799), FROM_UNIXTIME(2145916800), POW(2,32-1)-1, 2145916799 - POW(2,32-1)-1; +---------------------------+---------------------------+---------------+----------------------------+ | FROM_UNIXTIME(2145916799) | FROM_UNIXTIME(2145916800) | POW(2,32-1)-1 | 2145916799 - POW(2,32-1)-1 | +---------------------------+---------------------------+---------------+----------------------------+ | 2037-12-31 18:59:59 | NULL | 2147483647 | -1566850 | +---------------------

问题 I have done a little research here on SO and haven't found exactly what I was needing. I am currently learning C++ to help transition my companies MSSQL Delphi driven application over to C++. In order to help facilitate my learning I am working on a personal application for my home use. Since I don't really think I will need to power of a database I was looking at other methods to store data. It may help answer my question if you know what the program will do. What it is: Family Budget,

问题 I need to store information on application that always need to be read when open application. But I don't want user copy/dump/or edit it. So the question is : "Is UIPasteboard can solve this problem?" is it security? and if not, what else is suitable to use. Thank you very much. Edit: Is there have other solution that can solve "delete and reinstall application?" 回答1: UIPasteboard can be overwritten at any time, and I wouldn't call it secure. You might want to consider encrypting and

问题 My app got rejected due to not follow iOS App Data Storage Guidelines. My binary was rejected by the Apple App Store Review Team. On launch and content download, your app stores 6.34MB on the user's iCloud, which does not comply with the iOS Data Storage Guidelines. Next Steps Please verify that only the content that the user creates using your app, e.g., documents, new files, edits, etc. is backed up by iCloud as required by the iOS Data Storage Guidelines. Also, check that any temporary

问题 Can a local storage adapter and a data storage adapter be used simultaneously? Here's some example code. VpcYeoman.ApplicationAdapter = DS.LSAdapter.extend({ namespace: 'viewpoint-emberjs' }); vs. VpcYeoman.Store = DS.Store.extend({ revision: 12, adapter: DS.FixtureAdapter.extend({ queryFixtures: function(fixtures, query, type) { return fixtures.filter(function(item) { for(prop in query) { if( item[prop] != query[prop]) { return false; } } return true; }); } }) }); Fight! Or coexist?? 回答1:

问题 I trying to write some files on the internal storage. I saw the FileOutputStream fos = openFileOutput(FILENAME, Context.MODE_PRIVATE); on Data Storage and I understood that the file will be private to my application. but the problem is it can only open a file without a path, so first I opened a new directory file with file.mkdir(), but now, how do I write the file as private ? 回答1: I saw theFileOutputStream fos = openFileOutput(FILENAME, Context.MODE_PRIVATE); on Data Storage and I understood

问题 It is written everywhere that data in SQL Server is written in pages of 8K (8192 B) each with 8060 bytes for data and the rest is overhead (system info). Though, the recent article [1] gives code example illustrating, as I understood, that 8078 bytes of data fit into a page. What do I miss in understanding 8,060 B per per page? I verified the code on x86 SQL Server 2008 R2... Update: Did I see an answer telling about follow-ups to [1]? I pity that I did not mark that as helpful (to me) and

问题 It is written everywhere that data in SQL Server is written in pages of 8K (8192 B) each with 8060 bytes for data and the rest is overhead (system info). Though, the recent article [1] gives code example illustrating, as I understood, that 8078 bytes of data fit into a page. What do I miss in understanding 8,060 B per per page? I verified the code on x86 SQL Server 2008 R2... Update: Did I see an answer telling about follow-ups to [1]? I pity that I did not mark that as helpful (to me) and