I'm working on winform app using local sqlitedb. I'm able to embedded db to application file when deploy. But I got two problem:
I can find the local.db(DEPLOY type) file but when try to read it using DB Browser, it returned blank db without any data inside. The app itself still working perfectly fine with all data in the .db file. So where can I find the .db file which acture have data inside?
The second problem is. I'm syncing local sqlite database with a remote Google Cloud DB. Everything works on debug but in deployment the sync function can not keep tracking changes in .db file and return 0 changes. I assume it's because in application file, the .db file is blank without any data inside so the sync function can not track and sync 2 databases. I'm using DotMim(0.9.7) to sync.
Related
I added my app on heroku and it makes changes to the file inside it and everytime i make a change in github all the datas are lost is there any way i can get access to the file inside heroku
Heroku has an “ephemeral” hard drive, this means that you can write files to disk, but those files will not persist after the application is restarted with the dynos. The best solution to this problem is to use cloud storage and dump all the new data on it with your worker script.
What design is used to store file objects that gets loaded from a website. For instance if I have a website that accepts documents or images. So
Use Case 1.
Users logs in and selects a MS word file on his machine and uploads to the website.
Use Case 2.
User logs in and selects a image on his machine and uploads to the website.
How do I store these file objects in the database
The first step is just getting the file from the AngularJS application to the server. This page talks about sending request to the server from the client and should get you started.
Once you have done that, (assuming you are using PHP) you will need to save the resulting file to the database. This post will get you started with saving files to PostgreSQL, but the details will end up being very specific to your situation:
If you have more questions after reading through those resources please add specific details about your setup to your question.
Is it possible to use a local database file with html5 without using a server. I would like to create a small application that depends on information from a small database. I do not want to host a server just to pull information. Is it possible to create a database file and pull information from the local files ?
Depends on the following:
The type of application you want to build:
Normal website with some data being pulled from a local storage;
Special purpose hosted website / application with data generated by the user;
Special purpose local application with a dedicated platform (a particular browser) and with access to the browser's non-web API -- in order to access the browser's own persistent storage methods (file storage, SQLite etc.);
Special purpose local application with a dedicated environment -- in order to deploy the application with a local web server and database;
Available options:
Indexed DB
Web Storage
XML files used for storing data and XSLT stylesheets for translating the data into HTML;
Indexed DB and Web Storage ar available in some browsers but you need to make sure the targeted browsers have it. Their features aren't quite as complete and flexible as SQL RDBMSs but they may fit the bill if your application doesn't need all that flexibility.
XML files can contain the data you want to be shown to the user and they can be updated manually (not by the user) or dynamically (by a server script).
For dynamic updating the content of the XML is kept in JavaScript and manipulated / altered (using the XML DOM) and when the session is over the XML content is sent to the server to entirely replace the previous XML file. This works OK if the individual users have a file each and they never write to each other's files.
Reading local files:
Normal file access is prohibited (for security reasons) to all local (JavaScript) code, which means that "having" a file locally implies either downloading it from a known source (a server) or asking the user to offer access to a local file.
Asking the user to offer access to a local file which implies offering the user a "file input" -- like for uploads but without actually uploading the file.
After a file has been selected using FileAPI to read that file should be fairly simple.
This workflow would involve the user "giving" you the database on every page refresh -- but since it's a one page thing it would mean giving you the data on every session as long as your script does not refresh the page.
You can use localstorage but you can run a server from your own computer. You can use Wamp or Xampp. Which use Apache and mysql.
What i'm looking for is a little more robust than a cookie. I am making a web application for a friend that will be 1 page, and have a list of names on the page. The person wants to be able to add names to the list, however they do not want to use a web server. Just want the files locally on a computer so a folder called test-app , with index.html, and possibly a database file that can be stored in the web browser or a way to save information to the web browser for repeated use.
I have a 2 questions regarding Weblogic.
I am using Weblogic 10.3.6.
Yesterday I deployed the war file.
Following are my 2 questions
1) When I restart the server the sys out logs at location
domains//servers//logs/Server-name.out
domains//servers//logs/Server-name.log
are not getting updated
Actually logs were getting updated initially but I cleared the log file by manually opening the log file and deleting its content.
Later I found on official oracle website that
"Oracle recommends that you do not modify log files by editing them manually. Modifying a file changes the timestamp and can confuse log file rotation. In addition, editing a file might lock it and prevent updates from WebLogic Server, as well as interfere with the Accessor"
I think my log files got locked due to above reason.
Is there any way I can do to get updates in log files.
I have restarted the server as well but the logs are not getting updated.
2) I have deployed my web application using packed war file. When I deploy using war file it is expected that the war file gets exploded at some temporarily location in weblogic server. War gets deployed successfully but when I checked the contents of
WEBLOGIC/bea10.3.6.0_BI/user_projects/domains/Managedserver_7011_7012/servers/Server-chanakya/tmp/_WL_user
It is blank.
I was expecting that war should get exploaded inside the _WL_user folder. But it is not happeining right now.
Please let me know what I can do with respect to above problems.
Thankx in advance.
First question:
Generally speaking the .out file is created during server start and not updated once the server reaches the RUNNING state. The .log file should be updated continually however. It is safe to delete both of these files and once the server is restarted they should be regenerated. If for some reason they are not, go to server name -> Logging tab -> Log file name and specify the full path and name for a new log file.
Second question:
If you chose nostage for your deployment, it will not be copied to your server and will live wherever the file originally was. stage mode should copy the file to tmp/_WL_user after starting out under a stage directory. You can remove your deployment from the weblogic admin console and also delete the tmp and cache folders and try the deployment again if you need to. It's also possible the deployment failed... check the Deployments link in the admin console to make sure it reached the Active state.
Last - welcome to Stack Overflow. In general you should ask one question at a time.
I'm trying to create a standalone HTML5 document that utilizes SQlite. I want to save the database in the same directory as the html file so that I can access the data on a usb stick from any computer. How do I specify where the database ought to be saved?
This is all I have so far:
var db = window.openDatabase("gtd", "", "GTD 3.0", 1024*1000);
From what I understand, the browser handles how and where the SQLite database is created or read from. Firefox places the SQLite db into a file inside the user's profile folder.
In Firefox the DOM storage data is stored in the webappsstore.sqlite file in the profile folder (there's also chromeappsstore.sqlite file used to store browser's own data, notably for the start page - about:home, but potentially for other internal pages with "about:" URLs).
(from https://developer.mozilla.org/en/DOM/Storage)