If you’ve been following along with some of our previous blog posts, you’ll know that we’ve discussed some of the more used keys when dealing with databases. Lest you forget, we talked about keys in these two blog posts: Primary Keys – Good and BadForeign Keys – Are they worth it? Now, we can talk…… Continue reading More Fun with Database Keys
Month: March 2021
Reverse Engineer an ERD – How to
Over the last few blog posts, I’ve been talking about keys – both primary and foreign. Now, we can use these to get a great ERD for all of our users. First, let’s open up our ERD tool. In this case, we’re going to use the SQL Database Modeler – a tool I talked about…… Continue reading Reverse Engineer an ERD – How to
Foreign Keys – Are they worth it?
Last time, we learned about Primary Keys and some of the goodness that they give you. If you missed that, remember to go back and read that here. This time, though, we want to focus on the close kin of primary keys – the foreign key. Foreign Keys are truly columns that point to the…… Continue reading Foreign Keys – Are they worth it?
Primary Keys – Good and Bad
When it comes down to primary keys, most of us that have been working with databases for a while have come across a few million different ones. Some work fairly well. Some just don’t work at all and should be banned from ever being used as a primary key again. First, let’s delve into what…… Continue reading Primary Keys – Good and Bad
Reverse Engineering an ERD
One of the items you may have seen on the tools that you were using on Set up for an ERD is that you were asked if you wanted to reverse engineer it. Do not let the term “Reverse Engineer” confuse or scare you. Reverse Engineer – in this case – just means that the…… Continue reading Reverse Engineering an ERD