Computer Science, asked by neeleshkumar29, 4 months ago

does Primary key allows only values which are unique

Answers

Answered by patelsanjeev1978

Primary Key is a column that is used to uniquely identify each tuple of the table. ... Only one primary key is allowed to be used in a table. Duplicate and NULL (empty) values are not valid in the case of the primary key. Primary keys can be used as foreign keys for other tables too.

please mark me as a brainlists

Previous Question

Next Question

Similar questions

English, 2 months ago

Which organ in the sporogonium of pogonatum controls the spore liberation? (a) Calyptra (b) Archesporium (c) Peristome (d) Opercuml in answer ...

Math, 2 months ago

The value of(2°)°is ...

Art, 2 months ago

The ____________ art expresses the cultural identity of a community...

Science, 4 months ago

distilleri water not conduct electricity, whereas rain water does?