SQL Server: Insert batch with output clause - sql

Question

I'm trying the following
Insert number of records to table A with a table-valued parameter (tvp). This tvp has extra column(s) that are not in A
Get the inserted ids from A and the corresponding extra columns in the the tvp and add them to another table B
Here's what I tried
Type:
CREATE TYPE tvp AS TABLE
(
id int,
otherid int,
name nvarchar(50),
age int
);
Tables:
CREATE TABLE A (
[id_A] [int] IDENTITY(1,1) NOT NULL,
[name] [varchar](50),
[age] [int]
);
CREATE TABLE B (
[id_B] [int] IDENTITY(1,1) NOT NULL,
[id_A] [int],
[otherid] [int]
);
Insert:
DECLARE #a1 AS tvp;
DECLARE #a2 AS tvp
-- create a tvp (dummy data here - will be passed to as a param to an SP)
INSERT INTO #a1 (name, age, otherid) VALUES ('yy', 10, 99999), ('bb', 20, 88888);
INSERT INTO A (name, age)
OUTPUT
inserted.id_A,
inserted.name,
inserted.age,
a.otherid -- <== isn't accepted here
INTO #a2 (id, name, age, otherid)
SELECT name, age FROM #a1 a;
INSERT INTO B (id_A, otherid) SELECT id, otherid FROM #a2
However, this fails with The multi-part identifier "a.otherid" could not be bound., which I guess is expected because columns from other tables are not accepted for INSERT statement (https://msdn.microsoft.com/en-au/library/ms177564.aspx).
from_table_name
Is a column prefix that specifies a table included in the FROM clause of a DELETE, UPDATE, or MERGE statement that is used to specify the rows to update or delete.
So is there any other way to achieve this?

Answer 1

You cannot select value from a source table by using INTO operator.
Use OUTPUT clause in the MERGE command for such cases.
DECLARE #a1 AS tvp;
DECLARE #a2 AS tvp
INSERT INTO #a1 (name, age, otherid) VALUES ('yy', 10, 99999), ('bb', 20, 88888);
MERGE A a
USING #a1 a1
ON a1.id =a.[id_A]
WHEN NOT MATCHED THEN
INSERT (name, age)
VALUES (a1.name, a1.age)
OUTPUT inserted.id_A,
a1.otherId,
inserted.name,
inserted.age
INTO #a2;
INSERT INTO B (id_A, otherid) SELECT id, otherid FROM #a2