what is a primary keyprimary key is chosen by the
What is a primary key?
Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Expected delivery within 24 Hours
q what is the kind of circulatory system present in annelidsin beings of the phylum annelida the circulatory system is closed that is blood
define tuple variabletuple variable is a type of variable whose domain is the set of all
define the term domainfor each n every attribute there is a set of permitted values known as the domain of that
what is a candidate keyminimal super keys are known as candidate
what is a primary keyprimary key is chosen by the database designer as the principal means of identifying an entity in the entity
explain feed - cutting parameters1 in cylindrical grinding feed is the longitude movement of the work piece per revolutionffeed in mm per work piece
what is a super keya super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity
define- relational algebrathe relational algebra is a procedural query language it having of a set of operations that take one or two relation as
what is a select operationthe select operation selects tuples that please a given predicate we use the lowercase letter sigma to denote
1933857
Questions Asked
3,689
Active Tutors
1425928
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: What methods can you use to investigate learning pathways in community services?
Question: Which of the following training methods can help you reach work-related learning goals in CHC?
Define what competitive advantage means in the context of healthcare. How does it differ from other industries?
Propose a nursing informatics project for your organization to improve outcomes or efficiency by completing the Nursing Informatics Project Proposa
Your assignment this week is to locate three current studies conducted on health behaviors related to the medical problem you have identified
Boyle's Law is the law of gases that explains how the pressure of a gas and volume have an inverse relationship. According to Betts et al. (2022)
Climate change has significant impacts on disaster preparedness by increasing the occurrence of severe storm events, heavy rainfall events