PadLeft function in T-SQL

Question

I have the following table A:

id
----
1
2
12
123
1234

I need to left-pad the id values with zero\'s:

id
----
0         


        

Answer 1

A simple example would be

    DECLARE @number INTEGER
    DECLARE @length INTEGER
    DECLARE @char   NVARCHAR(10)
    SET @number = 1
    SET @length = 5
    SET @char = '0'

    SELECT FORMAT(@number, replicate(@char, @length))