SQL Query to write A to Z 

                     Without Knowing the ASCII value of any Character

 declare @start int,@stop int     --We declare start and stop variable to hold from and to value

set @start= ASCII('a')              --We get ASCII value of 'a' in start variable

set @stop= ASCII('z')              --We get ASCII value of 'a' in start variable

while(@stop>=@start)             --We start loop. Loop terminate if start value is greater than stop value

begin

print CHAR(@start)

set @start=@start + 1

end

Now If you want to print A to Z means in Capital then we should set 

set @start= ASCII('A') 

set @stop= ASCII('z')  

And rest code will be the same.

Also we can use This code to print all numbers between two numbers.

SQL Tutorial

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