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.
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are ...
Eight people M, N, P, S, T, V, X and Y are sitting in a straight row and all are facing north. M sits second from one of the extreme ends of the row. On...
Four of the following five are somehow similar and therefore create a group. Which of these is not related to this group?
L, F, X, R, B
If I denotes ‘÷’, J denotes ‘×’, K denotes ‘−’ and L denotes ‘+’, then what will come in place of ‘?’ in the following equation?...
In a certain code language, ‘LENGTH’ is written as ‘MDKGSF’ and ESCAPE’ is written as ‘BRDDOZ. How will ‘MARGIN’ be written in that lang...
Find the wrong number in the following number series:
10, 17, 26, 36, 50
A, B, C, D, E, F and G are sitting around a circular table, facing the centre. Only one person sits between F and C when counted from the left of C. B s...
Select the set in which the numbers are related in the same way as are the numbers of the following set. (NOTE: Operations should be performed on the wh...
How many triangles are there in the given figure?
Which two signs should be interchanged to make the given equation correct?
12 ÷ 2 × 6 + 4 – 2 = 13