Why Is Data Integrity Important

Data integrity is the phrase used to describe accuracy and reliability of data. Data should always be accurate, consistent, reliable and up-to-date. It must not have any variations. Why is data integrity so important?

Compromised data

Compromised data integrity often happens. Sometimes data is handled improperly. If data is compromised it’s critical to identify and address the sources of damage quickly especially in secure situations. For example, university databases contain grades and credits of students. Information must be entered accurately and up-to-date. Businesses rely on data information for evaluating trends. Their success relies on accurately entered and contained data. Data integrity is also important because it effects the reporting of data for customers or other businesses.

Database storage problems

Data is entered and stored in databases. Human error is often the cause of problems with data integrity. People enter data inaccurately or inconsistently. Whenever data is moved around or updated, comprise may occur. Transferring or copying data may be mishandled which then may cause inconsistency of data between files or references to a file. Computer problems can often lead to overwrites of the data. Viruses can be attack the data integrity. Data integrity requires no changes or mishandling of data.

Rules of data integrity

Rules applied to table columns to ensure different types of data integrity.

  • Null rule: a rule applied to single column inserts that allows or disallows updates in rows which contain a “null” or no value in that specific column.
  • Unique column values: this rule applies to one or more columns and allows the insertion or update of a row only if it contains a unique value in the column.
  • Primary key values: this rule states that each row in a table will be identified by the values on that key.
  • Complex integrity checking: this rule applies to a user defined column which will allow or disallow inserts, updates and deletes in a row that is based on the value it contains in the column or set of columns.

Importance of data integrity

Maintaining data integrity cannot be overstated. Every organization relies upon the integrity of its data. To maintain data integrity, there are several things that businesses or companies can do.

  • Limit the number of people who have access to sensitive information
  • Maintain proper authorization levels for all users
  • Protect the accuracy and reliability of stored data—this should include protection against data mining
  • Maintain a document procedure system with parameters and maintenance activities listed
  • Have a disaster plan in place for recovery of data in case of viruses, power outages, etc.
  • Hire qualified database designers should create database for your company
  • Be sure your database designers used different types of database technology to ensure security


Enforcing data integrity will guarantee reliable data in your database. Data integrity assures you that information will be accessed by authorized individuals. To ensure data integrity restricts access to data, maintain consistent practices or entreaty and updates. Guard against environmental hazards such as heat, dust or electric surges.

© 2015 Life123, Inc. All rights reserved. An IAC Company