如何在 SQL 的 SELECT INTO 语句中指定列格式？

Question

I have a table [TABLE1] with columns A , B , C for example. Already have data inside. There is a new column, say B2 , that I want to add into a new table [TABLE2] .

Due to weird permission setup , I can create table, I can SELECT INTO , but I cannot change the columns settings.

I have the following code:

SELECT A, B, '' as B2, C
INTO TABLE2
FROM TABLE1;

This give us more or less what I want. But B2 is now varchar(1) . I want to specify it to be varchar(5) within the above code. How can I achieve this?

Thanks, Jack

Answer 1

投射到你想要的类型：

SELECT A, B, CAST('' as VARCHAR(5)) as B2, C