What are some examples of database consistency issues?

What are some examples of database consistency issues?

Database consistency issues occur when data is not accurately reflected across all instances. For example, if a bank's database shows a user has $100 in their account, but another system shows $50, that's a consistency issue.

Can you give me more specific examples?

Sure! One example is when a product's inventory count is updated in one database but not in another, leading to overselling. Another is when user profiles are updated in one system but not in others, causing discrepancies.

What causes these consistency issues?

They can be caused by software bugs, network failures, or improper synchronization between databases. Human error during data entry can also lead to inconsistencies.

How can we prevent these issues?

Implementing strong data validation rules, using transactions, and ensuring proper synchronization between databases can help prevent consistency issues.