Export data to Excel Part By Part - spring-mvc

I have a huge dataset value in JRDatasource object and am not able to export it to Excel as it will give me memory out of space error. So am planning to split the JRDatasource object and export the data part by part. Any idea or suggestion on how to implement this? Or any other way suggested also fine for me. Thanks in advance.

I dont know much about JRDataSource, but I'll offer another solution.
Take a look at Apache POI library which enables you to create excel files on-the-fly.
So you can read from the data source element by element and persist them on a excel file.

Related

Exporting data from power query to csv in sharepoint using R

I hope to get a solution here. I am completely new to R and really all i need it for is to extract data from power query and append it to an existing csv file. The only export approach that i have come across only works for exporting to the local c drive as per my example below. This approach however does not work for files in sharepoint with a URL. Can you please advise on a solution? Thanks
write.csv(dataset,"c:\\documents\\test.csv ,append=true")

How can I import data from excel?

I am new to progress and I would like to know if there is a way to import data from excel. So far I have done only for CSV. Please share your Exp here!!! I would appreciate that.
By far the easiest way for you is to save the excel sheet as CSV and then simply import that. If that's not possible you could take a look at automation of excel to perhaps trigger a Save AS CSV and then import that.
Here's a quite good example in the KnowledgeBase. Please note that there might be changes due to different versions of Excel (also possibly of Progress).
There might also be DotNet APIs that might help you. Look for those in Microsofts documentation in that case.

Core Data SQLite File

I have an app that saves your data and retrieves your data under a ID number of your choice! The only thing is I have people asking for an excel document of all there saved data! Does anyone know how I would go ahead with this! I am using Swift and Xcode 6.1! I am also using a SQLite file that core data has made for me.
Thanks,
AppSwiftGB
Creating native Excel is likely a PITA. You should export to CSV, though the format seems to be another PITA for one is liking comma, the other semicolon and the third tabs :-(

Neo4j Configuration with Gephi

I want to use Neo4j to store a number of graphs I created in python. I was using Gephi for visualization, and I thought the export to Neo4j plugin would be a very simple way to get the data across. The problem is that the server is seemingly not recognizing the neostore...db files that Gephi generated.
I'm guessing I configured things incorrectly, but is there a way to fix that?
Alternatively, I'm also open to importing the files directly. I have two files: one with node titles and attributes and another with an edge list of title to title.
I'm guessing that I would need to convert the titles to ids, right? What would be the fastest way to do that?
Thank you in advance!
If you have the file as tab separated csv files, feel free to import them directly. There are some options, check out this page: http://www.neo4j.org/develop/import
Especially the CSV batch importer can help you: http://maxdemarzi.com/2012/02/28/batch-importer-part-1/
Or if it is just a little bit of data, use the spreadsheet approach: http://blog.neo4j.org/2013/03/importing-data-into-neo4j-spreadsheet.html
Please report back if you were successful.
I used Gephi to generate a neo4j store file directory in the past - it worked like a charm...
I assume you did delete the default graph.db directory and renamed your gephi-generated directory to graph.db? That worked for me...

ASP.NET - Export formatted data in excel file

I want to export a datable to excel file. The data should be formatted and in readable format.
Can anyone suggest me ways to do this ?
Also please suggest ready made free library which we can use in ASP.NET for formatted exporting.
Thanks
try http://epplus.codeplex.com/
Nowadays I work on exporting excel and this is the best I tried so far.
Easy to use.

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