design approach for ERP database -


i must re-build erp app did 7 years ago. old database design was: 1 document -> 1 table. example: invoices have there table.

i search other's database design, such openbravo , did similar.

this kind of design has advantages:

  • makes easy search (directly) database
  • in case of mistakes, table involved
  • other...

but nowadays things different. databases mongodb scene make me doubt. other possibility, make 1 big table kind of documents. so, example, using single table inheritance can store different document data on own.

this approach dive me 20 tables 1 childs. final question is:

should design one-document/one-table or should go oo design 1 general table?

note: commercial/financial documents, db has other tables other concepts.

i don't think able precise answer other this:

it boils down needs. need choose database software , technology according needs. there many , each tool not @ of them. points need think about:

  • how data need store ? gigabytes ? hundreds of gigabytes ? terabytes ?
  • how many users need access database @ same time ?
  • do need able / replicate data across multiple servers ?
  • is data structured or more flexible ?
  • what experience of company various database software ?
  • how company going invest in project ?
  • do need support acid transactions ?

those questions should answered before pick tool "because know it". erp piece of software critical enterprise suggest give lot of thought specific technologies considering , why making onto list. when know should pick tool best fits criteria.


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