1. COMMENT & UNCOMMENT

• comment
  ctrl +k
  ctrl+c

• uncomment
  ctrl +k
  ctrl +u

2. new windows

ctrl +n

3.show/hide result pane

ctrl + r

4. execute highlight statement

ctrl +e

5. Cancel the executing query

(Alt + Break or Alt + Scroll Lock)

6. Make selected text uppercase or lowercase

Ctrl + Shift + U, Ctrl + Shift + L

7.Display estimated execution plan

Ctrl + L

8.Include actual execution plan

Ctrl + M

9.Go to line

Ctrl + G

10. run the statement

alt + x

https://docs.microsoft.com/en-us/sql/ssms/sql-server-management-studio-keyboard-shortcuts?view=sql-server-ver15