Hello @Mark DeMichele,
Welcome to Microsoft Q&A forum.
Generally, SSDT is installed by using VS Installer.
From VS Installer => Modify => in Workloads
tab select Data storage and processing
workload and in Individual components
tab select SQL Server Data Tools
component => click Modify button.
The SSDT component can also be installed by using command lines.
For example, preparing a layout folder(VisualStudioSetup.exe --layout C:\VSLayout --add Microsoft.VisualStudio.Component.SQL.SSDT
) => modifying VS to add SSDT component(C:\VSLayout\vs_setup.exe modify --installPath "C:\Program Files\Microsoft Visual Studio\2022\Community" --add Microsoft.VisualStudio.Component.SQL.SSDT --passive
).
For Analysis Services(SSAS), Integration Services(SSIS), or Reporting Services(SSRS) projects, you need to install the appropriate extensions from within Visual Studio with Extensions > Manage Extensions or from the Marketplace.
More details, please kindly check this document: Download SQL Server Data Tools (SSDT) for Visual Studio.
Sincerely,
Tianyu
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