I have android app with a SQLite database. I need all the data in my Java application. I have exported database file. Does it work with Java application if my Java application is using SQLite database?
I have an android app with SQLite database. I need all the data in my Java application. I have exported the database file. Does it work with my Java application if my Java application is using the SQLite database ?
Is there any difference in the structure of database files?
The answer is: YES, it will work. There is no change in the database structure.
What you asked is similar to: Does the structure of a CSV file change if I access it from VB NET, from C# or from Java?.
The answer to this question is obviously NO, it won't change.
It would be a real nightmare if different apps would change the formats of the files they use.
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I created an android app. and I used sqlite to keep my small files. When I use sqlite, I could create tables, and did operations with just a java class.
Now I am creating pure java application, and I need small database that can be created with programmatically on java application like android sqlite.
Is there any java database like sqlite ?
You can still use Sqlite, also you could use H2 which has similar features.
I want to create a database for my android app.
At first, I want create it fully and then I will use it on my android project.
I can make sqlite database in SQLite IDE (sqlite database browser).
But I want to create it programmatically.
Because I will fetch data from a text file and push it to database.
It will be very fast and easier than IDE to make a database.
So my question, is there any way to make a SQLite database without SQLite database IDE in general java project (not specific to android) and what is that?
Thanks in advance.
Sorry for my bad English.
You basically would just need to include the appropriate connection jars in your project and implement your own C.R.U.D. operations. A quick google search comes up with a a bunch of good tutorials. Here's a basic one to start with.
You should look at this project https://bitbucket.org/xerial/sqlite-jdbc. I've used it in several projects. very good.
I am currently developing an Android app in Eclipse with Java. I need to store some data. I could use XML, or CSV, but I would prefer to have some sort of database locally that I can query to with sql. If there is some type of editing interface would also be good.
A good example would be Microsoft Access, but obviously that would not work on Android. You know, just somewhere simple where i can store data locally. Nothing complicated. Ease-of-development would be very useful.
Is there anything like that in the Android world?
Data in android are usually stored in SQLite database. Personally I use OrmLite - it's well documented and works like a charm...
I have a Java Applet which displays 2D table data from a Derby database. I am also using Netbeans. I want this application on a webpage. I have uploaded the html document and all the .class files into the proper directory on the server. What remains is accessing the database.
I would like to use Embedded Derby so that my application contains the database (is my understanding of that fact correct?). Then I should be able to upload the html and jar/class files to the server and my application will be deployed. However I am confused on the following:
How do I create/setup the database to live on the webpage?
What would my connection string be?
Is there a better way to do this altogether in NetBeans?
All help is greatly appreciated. Let me know if I can make my question clearer.
You can package your Derby database itself inside a JAR file as part of your applet, and then it will be effectively part of your applet and downloaded when your applet is downloaded.
See this related question: Distribute a database made with JavaDB with Java program
Note that this will create a read-only database. If you actually need to update your database from your applet, you'll need a more sophisticated approach (e.g., package the initial data into the applet, then when the applet starts up, request access to local storage on the workstation and create the writeable database there).
For complete documentation on building and deploying a database-in-a-jar, the documentation is here: http://db.apache.org/derby/docs/10.9/devguide/cdevdeploy15325.html
Is it possible to use SQLite as a relational database from Google App Engine? (Java) I need read/write access to it from the app itself.
Also, I am using Quercus for PHP, and if what I am asking for is possible, I can handle storing the database myself.
No, it is not possible. This would require write access to the filesystem, which App Engine does not allow.
SQL database support (MySQL like) is planned, but no release data has been given. For now, use the datastore.
I know it's a super old question and nothing concerning read-only properties of App Engine has changed since then... But actually you can use sqlite on Google App Engine. There is a writable /tmp directory (https://cloud.google.com/appengine/docs/standard/java-gen2/using-temp-files). If your app on startup first copies the db.sqlite3 file to /tmp/db.sqlite3 and references this path as database path, it will work.
The following problems are connected with this approach:
This directory is "in-memory". So if you want to use really large sqlite file, you may face problems with RAM.
Each node of the app gets its own copy of the database. If you save something on one node, these changes will not be seen by other nodes. And the new data will be lost if the app scales to 0.