Dear Friends,

See the method I tried to upgrade Koha 2.2.x to Koha 3.x.

I extorted bibliographic details as CSV format from database using SQL  query trough PhpMyAdmin.
Then converted CSV file to MARC 21 using MarcEdit software.
I imported marc records in Koha 3.x version.

In the same way,  I exported patron details and imported in new koha installation

But,  I missed old transaction details.

But I could retrieve most of the data using above mentioned way.

Here is the SQL script, after necessary changes you can make use this for your purpose,

items.barcode,items.dateaccessioned,items.itemcallnumber,biblioitems.isbn,biblio.author,biblio.title,biblioitems.pages,biblioitems.publishercode,biblioitems.place,biblio.copyrightdate
FROM items
LEFT JOIN biblioitems ON (items.biblioitemnumber=biblioitems.biblioitemnumber)
LEFT JOIN biblio ON (biblioitems.biblionumber=biblio.biblionumber)
ORDER BY items.barcode ASC

Regards,

--
Vimal Kumar V.
Mahatma Gandhi University Library
Kottayam, Kerala- 686 560
Web: www.vimalkumar.org
Blog: http://vimalkumar.oksociety.in http://linuxhalwa.blogspot.com
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"I forget what I was taught. I only remember what I have learnt"
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