Pergunta de entrevista da empresa Contata Solutions
what is the diff between the primary key and the unique key?
Resposta da entrevista
Sigiloso
20 de out. de 2020
The primary key does not accept a null value but unique key accepts a null value.
1
what is the diff between the primary key and the unique key?
Sigiloso
The primary key does not accept a null value but unique key accepts a null value.