(English isn’t my native language)
I’m doing an internship for school and my task is to theoretically describe the best way to transfer the data from their current database (PostgreSQL) that they have linked to Service Manager 7 to a new (to be decided) system/database.
Also the current database is a NON-relational one (so it’s basically just a large database filled with tables and rows of data without any relations between them) and the future database is going to be relational.
I’ve taught about 3 different ways at the moment to transfer this data and any help/opinions/information on the web would be much appreciated!
-From DB to DB ( by writing Select/import statements in SQL)
-Using an ETL (extract,transformation and load)
-Flat file
Thanks in advance!!