SQL Server includes, or has available for free download a set of tools sufficient to build and operate a Data Warehouse, including:
SQL Server Management Studio for Administration and Development
SQL Server Data Tools for schema management and DevOps integration
SQL Server Integration Services for building ETL pipelines
SQL Server Agent for job scheduling and alerting
SQL Server Analysis Services for building interactive OLAP models.
In addition there is a huge ecosystem of 3rd party tools that work with SQL Server.