SSDT 2010 will not install on the "RTM" (original) version of Visual Studio 2010. You must download and apply first. Missing Templates

Microsoft has removed the direct links to SSDT 2010 from its primary download center. However, you can still access the legitimate files via the .

SQL Server Data Tools (SSDT) changed how developers manage databases by bringing the power of Visual Studio to SQL Server. While modern versions like SSDT for Visual Studio 2022 are standard now, many legacy environments still require the specific 2010-era release. What is SQL Server Data Tools 2010?

Search explicitly for SQL Server Data Tools December 2012 or Visual Studio 2010 Service Pack 1 .