leftpad in sql code example

Example 1: oracle sql pad left zeros

SHOW LPAD('column_name',14,'0') 
000column_name

Example 2: tsql pad left

declare @T table(id int)
insert into @T values
(1),
(2),
(12),
(123),
(1234)

select right('0000'+convert(varchar(4), id), 4)
from @T