Tag: data modeling

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” components — david schleis (@dschleis) October 12, 2016 Display as…what’s he talking about? […]

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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 to control the generation of the foreign key column: to […]

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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, are there functions/tools in Oracle SQL Developer which can help […]

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Modeling Virtual Columns

Virtual columns made their debut in Oracle Database 11g. They are a value that’s not stored with the row, rather they are computed as queried. [DOCS] So I could have a column of type DATE. And I could have a virtual column of type VARCHAR2 that is computed by running a function against the previously […]

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Discovering Foreign Keys in Oracle SQL Developer Data Modeler

Columbus didn’t exactly discover America. And we’re not really going to discover your long, lost foreign keys. But, we’ll do our best to guess where they might be. Our data modeling tool is often the bearer of bad news – your database doesn’t actually have any referential integrity defined. Oh, it’s defined somewhere, in the […]

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