You have a schema. Someone else built it. You’ve just inherited it. Now you need to build an application around it. But, tell me more about this schema? No docs? That’s OK, you can build your own! 1. Connect to Your Database, Open a ‘Driving’ …
Enforcing Naming Standards for Your Data Models
Customer asks: We tried also to apply some naming conventions but I think we didn’t understand something…. Having a logical model with a table having the column X, and a glossary having the standard name as Y. Can I apply some checks based on the …
Modeling JSON in Oracle Database Tables
Having an extra bit bucket in your tables is pretty easy now in Oracle Database 12c and higher. We offer native JSON support [JSON DOCS] – you can have a free form text column and store anything you want in it. AND, we pretty much …
Generating a Data Dictionary Report and Diagram for a SubView
Your relational models can get big. Bigger than the human mind can easily consume. So instead of generating a report of 2,500 objects, you might want to break down your model to smaller chunks, AKA SubViews. So let’s open the reports, which you’ll find on …
Data Modeler: Foreign Key Create New Column vs Use Existing
When using the data modeler, we assume when you add a foreign key, you haven’t already created the ID column. So we create that for you. Here’s what that looks like. I draw the relationship. I don’t want that. I want it to use USER.USER_ID …
User Defined Properties in SQL Developer Data Modeler
There are tons of properties you can set in your design objects. In fact, I discovered a ‘new’ one this week thanks to my friend David. #Oracle #SQLDev Data Modeler users please up vote my feature request to allow additional “display as” componentshttps://t.co/2fIbVXmIn9::: — david …
Designing Foreign Keys, PT II
I say designing, because I’m going to be talking about how to do this in SQL Developer Data Modeler. And I say Part Two, because in a previous post I showed how to draw a foreign key in your relational design. This post discusses how …
SQL Developer Data Modeler: Adding Journaling Tables
You may want to audit or ‘journal’ changes to your data. As you update a record, add a record, or delete a record – log that change in a different table. When doing your designs in the Data Modeler, you can ask at the time …
Aligning Objects in your Data Modeler Diagrams
Kris (no, not THAT Kris) asks… Is there some sort of ruler that is built into this software? If not, is there some way to select a table and then specify X and Y coordinates so that I can top left align all of the …
Advice on Finding Your Way Around a New Oracle Database
Received this query from a customer this morning… For your information, I’m average in SQL. What I would really like to know is if you can give me some tips regarding the use of Oracle SQL Developer in relation to a completely new database. So, …