One to many and relationship

sql - Difference between one to many and many to one relationship - Stack Overflow

one to many and relationship

In relational databases, a one-to-many relationship occurs when a parent record in one table can potentially reference several child records in another table. A one-to-many relationship in a database is the most common relational database design and is at the heart of good design. In systems analysis, a one-to-many relationship is a type of cardinality that refers to the relationship between two entities A and B in which an element of A may.

one to many and relationship

Итак, ты уверен, что врет моя статистика. Джабба рассмеялся. - Не кажется ли тебе, что это звучит как запоздалое эхо. Она тоже засмеялась. - Выслушай меня, Мидж.

one to many and relationship