composite key - Axtarish в Google
Составной ключ Составной ключ
При проектировании базы данных составной ключ — это потенциальный ключ, состоящий из двух или более атрибутов, которые вместе однозначно идентифицируют появление объекта. Составной ключ — это составной ключ, для которого каждый атрибут,... Википедия (Английский язык)
26 апр. 2021 г. · A composite key is made by the combination of two or more columns in a table that can be used to uniquely identify each row in the table.
7 авг. 2024 г. · What is a Composite Key? A composite key in SQL combines two or more columns to uniquely identify each record in a table.
8 июл. 2024 г. · A composite key in SQL can be defined as a combination of multiple columns, and these columns are used to identify all the rows that are ...
A composite key in DBMS is a candidate key that is composed of two or more attributes and is capable of uniquely identifying a table or a relation.
An SQL Composite Key is a key that can be defined on two or more columns in a table to uniquely identify any record. It can also be described as a Primary Key ...
17 апр. 2024 г. · A composite key is a candidate key consisting of two or more attributes(table columns) that uniquely identify a record/tuple (table row) or a ...
23 нояб. 2022 г. · You can also configure multiple properties to be the key of an entity - this is known as a composite key. Conventions will only set up a ...
MikroORM supports composite keys of primitive data types as well as foreign keys as primary keys. You can also use your composite key entities in relationships.
15 июн. 2017 г. · A composite key can be defined as the primary key. This is done using SQL statements at the time of table creation. It means that data in the ...
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