Question

I have an sqback file respresenting an sqlite db file. I want to extract the data from this sqback file, ie, table names and contents, and convert it into csv file format. I want to do this using Java.

** The sqback file will have already been uploaded from android device to pc prior to processing. So I need a solution that is appropriate for taking place server side.

Does anyone have any leads on how to perform such a task?

Answer 1

This website indicates which extra libraries to make use of, as well as provides examples of how to interact with the sqlite files (http://www.xerial.org/trac/Xerial/wiki/SQLiteJDBC#Usage)

important things to note:

1) make sure to include load the sqlite-JDBC driver using the current class loader. This is done with the line

2) the sqlite file IS a db, even if its not sitting on a server somewhere. So you still must create a connection to the file to interact with it. And you must open the connection and close the connection as well.
Connection connection = null;
connection = DriverManager.getConnection("jdbc:sqlite:" + path); // path is a String to the sqlite file (sqlite or sqback)
connection.close(); // after you are done with the file

3) Information can be extracted by using sql code to query the file. This returns a processable object of type ResultSet that holds your data pertaining to the query

  Statement statement = connection.createStatement();
  statement.setQueryTimeout(30);
  ResultSet rs = statement.executeQuery("SELECT * FROM " + tblName); 

4) from the ResultsSet you can grab data using the get commands with either the column index or the column header key
rs.getString("qo")

Hope that helps anyone having the same issue as I was having