Examlex
Incomplete or improper transactions can have a devastating effect on database integrity.
Sample Proportion
A statistic that estimates the fraction of the population that has a certain trait, characteristic or behavior, calculated as the number of observations in the sample with that trait over the total sample size.
Probability
A measure of the likelihood that a particular event will occur, expressed as a number between 0 and 1.
Barack Obama
Barack Obama is a political figure who served as the 44th President of the United States, from 2009 to 2017.
Voters
Individuals who are eligible and participate in the election process to choose representatives or decide on public issues.
Q2: Data integrity is enforced by the database
Q2: Date procedures are often more software-specific than
Q12: A database language enables the user to
Q26: If one exists,a data modeler uses a
Q36: In standard SQL,the optimizer hint FIRST_ROWS is
Q39: A table that is in 2NF and
Q50: In SQL,all expressions evaluate to true or
Q57: The ANSI has defined standards that govern
Q63: functionality ranges from simple data gathering and
Q66: From a structural point of view,2NF is