How to convert int to char with leading zeros?

Question

I need to convert int datafield to nvarchar with leading zeros

example:

1 convert to \'001\'

867 convert to \'000867\', etc.

thx.

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Answer 1

I like to use

DECLARE @Length int
DECLARE @Number int
SET @Length = 9
SET @Number = 4

select right( POWER(10, @Length) + @Number, @Length)

this gives me

000000004