Examlex
You are creating a BOAT table using existing data from multiple sources,and you find that you have "power boat blue","boat,power,blue" and "blue power boat" as data values for the same column.This is an example of the inconsistent values problem.
T Score
A standardized score that indicates how many standard deviations an element is from the mean of its distribution.
Z Scores
Standard scores indicating how many standard deviations an element is from the mean.
Combinations
The selection of items from a larger set where order does not matter.
Distribution
The way in which values in a dataset are spread or dispersed across the range of data points.
Q2: Relations are classified into normal forms based
Q16: To execute an SQL query,click the "Execute
Q28: MySQL users are granted MySQL privileges for
Q31: A relation is in Boyce-Codd normal form
Q47: The WHERE clause contains the condition that
Q54: In relational terms as defined by E.F.Codd,a
Q74: To exclude one or more values using
Q87: In E-R modeling,an attribute describes the characteristics
Q93: SQL views can be used to hide
Q99: It is possible to have a relation