Database integration is a crucial step in .NET development, requiring careful planning and execution. Companies use Entity Framework Core (EF Core) for seamless database operations. SQL Server, PostgreSQL, MySQL, and NoSQL databases like MongoDB are commonly integrated depending on project needs. Stored procedures, indexing, and database normalization optimize query performance. Dot net development company ensure ACID compliance for transaction safety and implement database migration strategies to handle schema changes. Cloud databases like Azure SQL offer scalable, managed solutions. By implementing best practices, .NET development companies create reliable, high-performing database-driven applications.