Oracle Database SQL Language Reference, 12c Release 1 () Contributor: The Oracle Database 12c documentation is dedicated to Mark Townsend, who. Data Analysis with SQL. 1. Flexible and Comprehensive Development Framework. 2. In-database analytical SQL with Oracle Database 12c. 4. Overview of. xxvi. Conventions xxvii. Changes in This Release for Oracle Database SQL Language. Reference. Changes in Oracle Database 12c Release 2 () xxviii.
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Product 7 - 33 Oracle Database 12c: SQL Workshop I Student Guide -Volume I. Hoàn Nguyễn Viết. THESE eKIT MATERIALS ARE FOR YOUR USE IN THIS. may be used in assisting students to prepare for the OCA Oracle Database 12c: SQL Fundamentals I exam. Neither Oracle Corporation nor McGraw-Hill. How the SQL optimizer decides to execute the query may not coincide . name ' Oracle', taken from the CIA database project all three founders .. Note: You can automatically generate documentation (HTML, PDF, CHM.
To generate database documentation, you need only Relational Model. So your first step is creating a new model.
So now, when you have a blank model in your design you can import objects from your database - such as tables, views, and procedures. Import Database Objects Now you need to import objects from your database to the model created. As you can see in the picture above, you can import database structure from various sources. But in this tutorial, you will import objects directly from the database, so you need to choose Data Dictionary option.
In the first step of Data Dictionary Import Wizard, you will have the option to choose database connection. Because you connect to the database you will not have any connection listed in this window. So you will need to create a new one. Create database connection Adding new connection is very simple and if you used Oracle SQL developer before you will know what to do. To create the new connection you will need to click Add button.
Next, you will see the window when you need to provide connection details.
To save connection click Connect button. You can also click Test button to check if your configuration is correct.
Import objects Now when you created the connection to your database, you can start schema import. First, select the connection you just created and press the Next button.
In next window, you will see a list of available schemas on the server.
You can also choose to which model you want to import objects. Since you chose the schema from which you want to import objects, now you need to mark the ones you actually want to import. Objects are grouped by their type. Each type has its own tab visible on the bottom of the window. After you press the Next button, you will see a summary on how many objects were imported by their type. As you can see below, I have imported seven tables and one view. To end process of importing objects press the Finish button.
After that, you will see import log, press Close to finish the import. Customize ER diagram For now, you connected to the database and imported objects from it. After import, objects are added to your Relational Model, and the database ER diagram will be automatically created. If you would like to modify the appearance of the model just move objects on the pane.
Handling this case is a material for the next tutorial. Create smaller diagrams for large databases Data Modeler has an option called SubViews. SubViews, as the name suggests, is part of the whole model. If you imported a lot of tables and views, you might want to break your diagram into smaller, more manageable diagrams. This is where SubViews come into play.
I have added two tables to my SubView. Objects which you moved to SubView are the same instance as an object in the Relational Model so you can edit comments in both Relational Model and any SubView. Comments in RDBMS - holds information imported from the database if you update this field you will be able to export descriptions back to your database - this is a material for another tutorial.
This field has not limited length but if you exceed characters and will try to save descriptions back to the database the script will throw an error. Designing your database.
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