While loop in Sql

In this lesson we are going to learn,how to create while loop in sql.Loops help us to do iterative work very effectively.So we need to know about it.

While Loop

 Syntax

  while(condition )
begin
increment
end

Example
declare @cnt int,@test int

               set @test =10
               set @cnt =2

        while(@cnt <=@test )
               begin
                   select @cnt,@test 
                   set @cnt =@cnt+1
          end

 It looks very simple but often we are confusing to do it.

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