asp.net mvc core crud operation using db 1st approaches scaffold

asp.net mvc core crud operation using db 1st approaches scaffold 

install package- core, tools, sqlserver

write below command in pmc (niche ka sara line copy paste kr de pmc me)

Scaffold-DbContext "Server=DESKTOP-JJDFFJA\\SQLEXPRESS; Database=Db_Course; Trusted_Connection=true; MultipleActiveResultSets=True;Encrypt=True;TrustServerCertificate=True"

Scaffold-DbContext "Server=DESKTOP-JJDFFJA\SQLEXPRESS; Database=Db_Course; Trusted_Connection=true; MultipleActiveResultSets=True;Encrypt=True;TrustServerCertificate=True" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models




db 1st approach me scaffold se kya hota h ki, db me jo table rahta h us k thru model aur context file ban jata h.