358.67

'SQL comes in different dialects, and each dialect shares common data types, as well as including some that are unique.'

'28/04/2023'

0.234e+02

Tables hold data about employees and the projects to which they are assigned. Each project can involve more than one employee and each employee is able to be occupied on more than one project

Record in Table A can relate to zero, one, or many records in Table B. Many records in Table B can relate to one record in Table A.

Each record in Table A relates to one, and only one, record in Table B, and each record in Table B relates to one, and only one, record in Table A.

A value of this column will uniquely identify the record in the table

A column whose values match a Primary Key in another table

A key that consists of two or more table columns that together uniquely identify a table row.