Good day to all, please tell me how to make the correct connection of tables in Oracle. I study just the web so this screen, do not swear. 
Ethernets Ethernets
355 4 silver marks 23 bronze marks
- Do you mean how to set the foreign key? Those. for the integrity of the entire database schema? - Chubatiy
- @Chubatiy and foreign key, didn’t quite understand the second question, what does the integrity of the entire database schema mean? - Ethernets
- fourfirststeps.ru/sql/oracle/r.php?108 - Mike
- @Chubatiy When changing / deleting a column from the Role table, it is necessary that all the rows of the UserRole and User tables associated with this row should be changed or deleted. - Ethernets
- Read the article that @Mike recommended to you. + Change the question to what you want to end up with. Like, there is such a table, how to do it ..... - Chubatiy
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