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How do relation on invoice database?

Brayan's photo
·Dec 21, 2017


I'm design a database schema, for my invoice system, and i have a doubt:

I want have, invoice and estimate, but i dont know if use one table and inside the table, a value with different types or create a two tables, one for invoice and other for estimates. But the information that each have is same, only change the number of invoice or estimate.

Any opinion?