Tab
Tab key
Keys like the Tab key and the arrow keys can be used to navigate around a table.
Hi, As per I know you can't define a foreign key column which is a part of a composite primary key of another table. Only way you've to refer all the columns of that composite key. UKD
Tab will move to the next cell and Shift-Tab will move to the previous cell. You can also use the arrow keys to move from one cell to another.
when a primary key from one table is stored as an attribute of another table
If the key is part of a linking table it can be.
False. A foreign key is a primary of one table that is in another table. A foreign key can be repeated, so it does not uniquely identify records in the table where it is a foreign key.
The foreign key is used as a reference in a table to the primary key of another table. For example: consider a table employee with id(primary key), name, address,department_id(foreign key) as its fields.Another table department with fields department_id(primary key) and dept_name. So, department_id is primary key in department table and foreign key in employee table.
Foreign Key
A composite key is one which includes more than one columns in the table as part of the unique identifier. For example if you create a key out of 3 columns in a table this key that gets created is a composite key.
A Foreign Key.
True.
A key is one or more fields in a database table which can be used to help identify a particular row of the table. A primary key is one such that uniquely defines a single given row. A foreign key is a set of one or more fields in one table which is the primary key to a row of another table.