What create when a primary key combined with a foreign key, Database Management System

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What will be create when a primary key if combined with a foreign key?

A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that connect them.

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Design a gennalization and specialization hierarchy for an automobile sales company

ER-diagram, The State of NewYork certifies firefighters throughout state an...

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Explain data dictionary in short, Explain Data Dictionary in short?

Explain Data Dictionary in short?

Erd, Table_Name( attribute_1, attribute_2, attribute_3, ….. ,attribute_x) ...

Table_Name( attribute_1, attribute_2, attribute_3, ….. ,attribute_x) Primary Key ( attribute_1, attribute_2) Foreign Key attribute_4 References Table_Name_2 (repeat for each fore

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Explain Clustering file organization (i) Determine if a record of file is physically ordered on a nonkey field - that does not comprise a different value for each record - that

Draw an entity-relationship model, Draw an Entity-Relationship model for ...

Draw an Entity-Relationship model for the relational schema given in the Appendix. Show all the entities, relationships, relationship names, and attributes and also underline the

Derived horizontal fragmentation, atient(PNumber, Name, NHS_no, Amount_due,...

atient(PNumber, Name, NHS_no, Amount_due, DNO, Doctor, Medical_Treatment), relation of schema Staff(StaffNum, Name, DNO, Task) and relation of schema Dept(DNO, Name, Location, Dire

Read-set(t) and timestamps-optimistic concurrency contents, read-set(T) : E...

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How to create a table from existing table, How to create a table from exist...

How to create a table from existing table? Create table as e.g, To create a new table ‘N_emp' with employee names and their identification numbers only from employee ta

Draw an e-r diagram and convert it to a relational schema, In an organizati...

In an organization several projects are undertaken. Each project can employ one or more employees. Each employee can work on one or more projects. Each project is undertaken on the

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