Office Viso 2007 Building a Database model diagram based on an existing database

When the database tables are many, the relationships between the tables become complex. It's hard to remember the memory, especially when the database key doesn't have a foreign key constraint.

So there is a database model diagram of the relationship between the tables is obvious.

Open Office viso 2007 File > New > Software and Database > Database Model diagram

Database > Reverse engineering > settings (appropriate database type)

New > select a data source (user data source) > select the driver you want to install the data source > Next > Next > Name the database, add a description, add a database name > select the Login method, enter the account password > complete

Next > Connect data, enter your account password > select the object type to reverse engineer > select tables and Views > select a stored procedure > Yes, add shapes to the current page

Wait for import .....

The corresponding relationship of the table can be expressed as:

Drag the control "relationship" of the object relationship into the workspace > Drag the arrow head to the center of the target table model until the border is red (the arrow head points to the primary key in the sense) > Drag the arrow footer to the center of the target table model until the border is red (the arrow tail points to the foreign key in the sense)

> Control Relationships Right-click > Database properties > Select custom Options in the Data Properties window > Check (parent: P) Table primary key, check (Child: H) Table foreign key > click <-------Association (A)------->

Next time you forget the correspondence, check the ~!~.

Office Viso 2007 Building a Database model diagram based on an existing database