weak entity
an entity set may not have sufficient attribute 2 form a primary key is called weak entity set.ex entity set payment has 3 attribute pay-no,pay-date, pay-amount.pay-no is a sequential no generated 4 each loan.each payment entity is distinct,payments 4 different loans may share the same payment no.thus entity set doent have a primary key,so it is a weak entity set. Placid04 bakhra,muzaffarpur,bihar.
bonds
public
The concept of corporate entity is main purpose why it exists.
# What kinds of data would you store in an entity subtype?# What is a subtype discriminator? Given an example of its use.# What is an overlapping subtype? Give an example.# What is the difference between partial completeness and total completeness?# What kinds of data would you store in an entity subtype?# What is a subtype discriminator? Given an example of its use.# What is an overlapping subtype? Give an example.# What is the difference between partial completeness and total completeness?
it just separates the sub type and supertype entity
There are four subtypes of rosacea.Here are the scientific names for each:Rosacea subtype 1 - Erythematotelangiectatic rosaceaRosacea subtype 2 - Papulopustular rosaceaRosacea subtype 3 - Phymatous rosaceaRosacea subtype 4 - Ocular rosacea
C. jeuni is the subtype that most often causes gastrointestinal disease.
metaphorfic subgroup
Catatonic schizophrenia.
Cricothyroidotomy is a subtype of surgical procedure known as a tracheotomy ; in some situations, it is considered an elective alternative to other types of tracheotomy
granite is a sub type of mantle
Seyfert Galaxy
consists of olivine-clinopyroxene-glass-chromite
Influenza A virus subtype H3N2
Data design can incorporate supertype and subtype tables in the document. In the flow chart, the organization will determine the order and usefulness of each type.