I am trying to write a twitter application. I crawled the twits, and I now have stored it in a folder called Twits. And in the folder, it has text files containing the information of the tweets like userid, text, etc. How can I insert the folder, or the output into mysql database. Any help would be greatly appreciated. I am new to databases, and java itself, I have been stuck on this for a while now. Thank you.
I would recommend you to work through a tutorial like this one: http://www.developer.com/java/data/article.php/3417381
Your goal should be to reproduce what they're doing step by step. If you understand how to do mysql with Java you can then apply your new knowledge to your Twitter app.
Have fun!
Edit
SQL at w3schools: http://www.w3schools.com/sql/sql_intro.asp
PreparedStatement at Java tutorials: http://download.oracle.com/javase/tutorial/jdbc/basics/prepared.html
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my question is:
how to connect java tp paradox / borland database ".DB" single files?
Here's what I have:
So, it's Paradox 7 database files.
I'm trying drivers:
http://www.hxtt.com/paradox.html & https://code.google.com/archive/p/paradoxdriver/ as:
String url = "jdbc:paradox:/D:/BABAK/powerGold/SongTitle.DB";
Connection con = DriverManager.getConnection(url);
But both throws exceptions like:
D:/BABAK/powerGold/SongTitle.DB isn't a database directory path!
As you can see, it is trying to find some database folder, but I have only single files! Also, "jdbc:paradox:/D:/BABAK/powerGold" (path to all .DB files folder) didn't work as well.
So, anybody, please help me to figure out, how to open this type of DB in my Java app.
jdbc:paradox:D:/BABAK/powerGold is the correct syntax.
One of the open source Paradox drivers you mentioned is now on Github and has had more features added since a couple of years ago, so that may now work.
If it doesn't, can you post the full stack trace (using this library, not the HXTT one) so we can figure out exactly what's going on? I'm not the original author, but I have made several contributions for different field types.
you're not trying to open the database doing so but a specific file of the whole DB. In fact your DB is composed of files .db, .px ....
The best approach to do so, is to migrate since this DB is not supported, and realy brings a lot of bugs.
I will recommand you to use migrate your database.
install Paradox Database Reader or Editor
export tables to CSV files
import tables in mysql Database (for example)
If you still want to connect this DB without migration with java, share in private a file .db and will give a try now.
To solve it do the following:
String url = "jdbc:paradox:/D:/BABAK/powerGold/";
keep the same files .db and .px of SongTitle in the same directory then run your code and it will work
What it needs to do.
1. Browse filesystem for DB.
2. Open password protected DB. (Program will hold the password)
3. Select table.
4. Export the table into a .csv file.
What I have.
Nothing, I am currently planning and designing. I am somewhat new to programming and have made similar programs just not connected to Access.
Plan so far.
I plan on using UCanAccess to connect with the database and am not sure what would be needed to convert the database into the .csv file.
Any help would be greatly appreciated. Although I know java I am more of a designer and am not great with syntax. I prefer to stick with Java but if there is an easier way I'm open to anything.
The main reason why I developped UCanAccess is to allow SQL query executions.
The direct usage of the jackcess library export utility (class com.healthmarketscience.jackcess.ExportUtil) seems to fullfil your simple requirement. It will allow you to export tables in csv with no more than three rows of code.
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'm using Oracle Database 11g Express Edition to set up my database. The way I currently backup my database data is through SQL Developer. (Right click on tablename > export)
Which will give me a .sql file.
But, how do I do this through java code? I've looked into expdp, but I don't know how to execute it through my code, if that's even the right way to do it.
Can someone help me out here?
Data Pump can be automated through the standard package DBMS_DATAPUMP. You could build a small PL/SQL procedure and call that procedure from Java. Here is an example of exporting a schema with DBMS_DATAPUMP, but it does not look very intuitive.
By any chance, is there anyone who can help me? As currently I am doing my major project, and also a beginner in android and java. I am doing the login function for my project. I took
reference from here. However, one problem that I am facing now is I do not know how to grab the details (name and email column) from the database and display out these two information. Is there any guide on how to grab the information and display it out after the user have log in? Thank you very much.
1. Try using SQLite DataBase, which ships with Android.
2. Its simply a file with NO DATABASE SERVER.
3. This DB can be as small in size as 250KB.
For a quick and easy example see here:
http://android-er.blogspot.in/2011/06/simple-example-using-androids-sqlite_02.html
For understanding the queries look here:
http://mobile.tutsplus.com/tutorials/android/android-sqlite/
http://www.vogella.com/articles/AndroidSQLite/article.html