Question

define primary key and foreign key and table ​

Answer 1

Explanation:

A FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. The table containing the foreign key is called the child table, and the table containing the candidate key is called the referenced or parent table.

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Answer 2

Answer:

Table --- A table is a arrangement of data in rows and columns.

Primary key ---- A primary key is a column or a group of column in a table that uniquely identifies the rows in that table.

Foreign key ---- A foreign key is a column or group of column in a relational database table that provide a link between data in two tables

Explanation:

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