Wählen Sie Ihren SQL-Server:
AnySQL
MySQL
MS SQL Server
Oracle
PostgreSQL
SQLite
Firebird
SQL Anywhere
DB2
MaxDB

Neuheiten abonnieren
Partners
Testimonials
Laurits Sogaard Nielsen: "Oracle Maestro (and also MS SQL Maestro) are the perfect substitutes for TOAD and in some ways also much better products (they are much cheaper, and the support is fast and easy). I'm looking forward to getting much more experience with both products, that already now have proven themselves to be fantastic".
Qian Dong: "Although I evaluated Oracle Maestro for only a couple of days, I must say I like what I saw in this product. I am going to place an order for this product.

Thank you for the good work".

More

Add your opinion

Oracle Maestro online help

Prev Return to chapter overview Next

Foreign Key References

A foreign key specifies that the values in a column (or a group of columns) must match the values appearing in some row of another table. The Foreign Key References tab allows you to manage foreign keys created in other tables and reference for columns of the current one. Table objects are managed within the corresponding tab of Table Editor. Unlike tables or views, Foreign Key References are actually not database objects. These are only references to foreign keys. They are designed specially for easy foreign keys management.

 

See also: Foreign Keys
 

 

Table foreign key references are edited within the Foreign Key Editor dialog window. In order to open the dialog you should either

 

open the table in Table Editor;
open the Subitems item and the Foreign Keys References tab there;
press Enter key or select the Edit Foreign Key item from the popup menu

or

select the foreign key to edit in the appropriate table group of the explorer tree and use the Edit Foreign Key popup menu item.

 

 

 

Table foreign key references are edited within the Foreign Key Editor dialog window. In order to open the dialog you should either

 

open the table in Table Editor;
open the Subitems item and the Foreign Keys References tab there;
press Enter key or select the Edit Foreign Key item from the popup menu

or

select the foreign key to edit in the appropriate table group of the explorer tree and use the Edit Foreign Key popup menu item.

 

 

 

To drop the foreign key reference:

 

open the table in Table Editor;
open the Subitems item and the Foreign Keys References tab there;
press Delete key or select the Drop Foreign Key item from the popup menu;

or

select the foreign key to drop in the appropriate table group of the explorer tree and use the Drop Foreign Key popup menu item.

 

and confirm dropping in the dialog window.

 



Prev Return to chapter overview Next