sql-server-2008 - sql server cant enter int 00X as 3 digits, but only as 1digit

Question

I am using sql server 2008. I want to keep my PK's in the form 001,002 etc. MS SQL is not allowing me to do that. How can i stop it from converting 001 to 1 ?

Answer 1

使用 varchar 数据类型而不是 Int 数据类型。

或者

将您的 Pk 保持为 int，并在查询中使用时将其转换为 varchar，然后在其上使用左填充 00X。

Declare @id int
Set @id = 1

Select RIGHT(REPLICATE('0',2) + CAST(@id AS VARCHAR(3)),3)