Insert issue Msg 213, Level 16, State 1, Line 2

问题

General newbie SQL question probs...

Why doesn't this work - or, what does this mean?

INSERT INTO test_db.dbo.Customers2
  SELECT FirstName
  FROM jas_test_db.dbo.Customers
  WHERE (Customers.FirstName = Firstname)

I get:

Msg 213, Level 16, State 1, Line 2
Column name or number of supplied values does not match table definition.

回答1:

You should supply column name for Customers2:

INSERT INTO test_db.dbo.Customers2(**Firstname**)

SELECT FirstName

FROM jas_test_db.dbo.Customers

WHERE (Customers.FirstName = Firstname)

回答2:

I would recommend to always explicitly specify which columns you want to insert into:

INSERT INTO test_db.dbo.Customers2(FirstName)  -- <-- specify the columns you want to insert into!
  SELECT FirstName
  FROM jas_test_db.dbo.Customers
  WHERE (Customers.FirstName = Firstname)

If you don't do this, you have to provide values for all columns, in the exact order in which they are defined in the table

来源：https://stackoverflow.com/questions/22692399/insert-issue-msg-213-level-16-state-1-line-2