Start learning 50% faster. Sign in now
Types of Attributes • Simple attribute− Simple attributes are atomic values, which cannot be divided further. For example, a student's phone number is an atomic value of 10 digits. • Composite attribute− Composite attributes are made of more than one simple attribute. For example, a student's complete name may have first_name and last_name. • Derived attribute− Derived attributes are the attributes that do not exist in the physical database, but their values are derived from other attributes present in the database. For example, average_salary in a department should not be saved directly in the database, instead it can be derived. For another example, age can be derived from data_of_birth. • Single-value attribute− Single-value attributes contain single value. For example − Social_Security_Number. • Multi-value attribute− Multi-value attributes may contain more than one values. For example, a person can have more than one phone number, email_address, etc.
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performed ...
Looking at the family picture, Sneha said, “She is my brother’s wife’s son’s father’s mother-in-law’s only daughter.’ How is the girl in t...
Which of the following terms will replace the question mark (?) in the given series?
DCZ, FFY, ?, JLW, LOV
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Choose the next number in the series.
15, 46, 77, 108, 139,?
Select the option that is related to the first term in the same way as the fourth term is related to the second term.
CIRCLE:?:: SPHERE: CUBE
Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as me...
Identify the diagram that best represents the relationship among the given classes.
Insects, Tiger, Deer
BEH, DGJ, (?), EJO, GLQ, INS.
In this question, a question is followed by two statements numbered (I) and (II). You have to decide whether the data provided in the statement/s are s...