erd

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How To Use ER Assistant – FREE Entity Relationship Diagram (ERD) Creation Tool

Bydatapandasadmin

There are a lot of ER Diagram Tools. However, by far, one of the favourite ones I use is the ER Assistant which is also free. You can download the ER Assistant free software from here: ER Assistant Download. Install the program after download. In this post, we will learn how to Create Entities Create…

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Entity Relationship Diagram – ERD and Cardinality Symbols Simple Explanations

Bydatapandasadmin

Understading cardinality notation and being able to explain them will go a long way in your database design and implementation. Here we look at a simple explanation of the symbols. (Credit to Data Warehousing for Business Intelligence by University of Colorado System on Coursera) Symbols in the above diagram and their meanings: – Oval: means 0 –…