Once EAV is understood, it makes sense that the relationship between various entities could be represented in a diagram; that is called an entity-relationship diagram, ERD.
- [Instructor] Now that you know … what primary keys and foreign keys are, … we can start talking about putting them … on an entity relationship diagram, or ERD. … Remember this table from the last video, … it's my imaginary hospital analytic table … from the HCUP data. … It's got the primary key assigned by HCUP, … field name HOSPID, … marked with a little PK above it. … And it's got the foreign key that links … to the American Hospital Association linkage file, … field name, AHAID as a foreign key. … See the little FK above AHAID. … Okay, now see on the right side of the slide, … and then ERD this table would be represented … by these rectangles. … The top of them would say the name of the table. … We were making an analytic table. … So I call that hospital analytic. … The field names go below. … You don't have to put all the field names, … just the important ones like this. … See, we have primary key HOSPID, … and the foreign key, AHAID. … And then we can say there are other hospital attributes. …
- How curation files function as part of data management
- Back-end curation
- Front-end curation
- Steps for dashboard design
- Designing surveys
- Creating warehouse, analytic, and application flow diagrams
- Text-based curation files
Skill Level Intermediate
1. Introduction to Data Curation
2. Back-End Curation
3. Front-End Curation
4. Special Curation for Surveys
5. Flow Diagrams
6. Text-Based Curation Files
7. Application in the Field
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