SQL自动生成A到Z二十六个英文字母

if object_id('#tempdriveinfo') is not null
drop table #tempdriveinfo
create table #tempdriveinfo
(
[driveinfoid] tinyint identity primary key not null,
[drivename] nvarchar(10)
)
declare @firstcapitalletters int
set @firstcapitalletters = 65 while @firstcapitalletters <= 90
begin
insert into #tempdriveinfo ([drivename]) values (char(@firstcapitalletters))
set @firstcapitalletters = @firstcapitalletters + 1
end
select * from #tempdriveinfo