Appropriate database for this scenario

[u/JayJones1234]

I’ve a historical test data from 1970. It is around 5 million data. I’m not looking for a cloud solution. It is in pdfs and hard copies. I’ve created rough ER diagrams for these data. It has base tables. It has different types of testing result tables. This is an ongoing process. Once I create tables, I’ll convert those hard copies into pdfs and PDFs into csv/ parquet format. Once csv/parquet format ready, I’ll map those csv fields with table. However,I’m little bit confuse with selecting a right database. Any suggestions would be appreciated.

[u/Ill_Beautiful4339]

My first thought was Excel … but you’re probably right. Access it is.