Answer:
I guess if there is experiment going on in absence one of those furniture then the experiment isn't successful
I dont think it would, but maybe you should Google it just in case.
Answer: Primary key
Explanation: Relational databases are those databases which are commonly found in the form of tables . It works in the relation pattern for accessing the data in the database
Primary key is a major factor which is found in the relational databases for the identification of the data in the table's column.It is considered as the unique value that corresponds to the values of rows in the table of relational database.
