ERD for Database with Multiple Schemas
I have a large database that is used for many different things--customers billing product details--and would like to create a chart that has a separate table for each sub-schema with field-to-field links between the tabs.
EX: my customer schema has 10 tables on tab 1. Table 3 has the FK for Product ID. I want to link that to the Product ID in the Product table on tab 3 (Products).
For a smaller database I would just use one chart but this database has 100+ tables that represent the 4 areas (customer product locations and invoicing). I need to show how the data flow works for each area and between the areas so that it can be used by everyone who needs to integrate with the system.