SQL Server: how to re-use SCOPE_IDENTITY()? - sql-server

Question

I want to do some sort of "copy-paste" of one row in the table creneau. This row has a one-to-many relationship with table creneau_jour. Thus I'd like to duplicate all the rows of this relationship too. I'm trying to do what I've done with MySQL but I'm missing something but dont know why:
INSERT INTO [RdV].[dbo].[creneau]
([libelle]
,[debut]
,[fin]
,[heure_debut]
,[duree])
SELECT
'Encore !!!', debut, fin, heure_debut, duree
FROM
creneau
WHERE
id = 1;
INSERT INTO [RdV].[dbo].[creneau_jour]
([creneau_id] ,[jour_semaine])
VALUES (
SELECT SCOPE_IDENTITY(), SELECT jour_semaine FROM creneau_jour WHERE id=1
);
Any idea of what I'm doing wrong?

Answer 1

DECLARE #SCOPEIDENTITY INT;
INSERT INTO [RdV].[dbo].[creneau]
([libelle]
,[debut]
,[fin]
,[heure_debut]
,[duree])
SELECT 'Encore v3',debut,fin,heure_debut,duree FROM creneau WHERE id=1;
SET #SCOPEIDENTITY = SCOPE_IDENTITY();
INSERT INTO [RdV].[dbo].[creneau_jour] ([creneau_id] ,[jour_semaine])
SELECT #SCOPEIDENTITY, jour_semaine FROM creneau_jour WHERE creneau_id=1
;
GO

Answer 2

You can forget about using SCOPE_IDENTITY() and use OUTPUT as part of the INSERT, so that you can set a variable with a value from the newly created row.
One such advantage to this method is that if you ever turn on identity insert then #SCOPE_IDENTITY wouldn't work, but the method using OUTPUT would.
DECLARE #Identity INT
INSERT INTO [RdV].[dbo].[creneau]
([libelle]
,[debut]
,[fin]
,[heure_debut]
,[duree])
OUTPUT inserted.IdentityColumn INTO #Identity
SELECT
'Encore !!!', debut, fin, heure_debut, duree
FROM
creneau
WHERE
id = 1
INSERT INTO [RdV].[dbo].[creneau_jour]
([creneau_id] ,[jour_semaine])
VALUES (
SELECT #Identity, SELECT jour_semaine FROM creneau_jour WHERE id=1
);

Answer 3

Try this one
DECLARE #SCOPEIDENTITY INT;
INSERT INTO [RdV].[dbo].[creneau]
([libelle]
,[debut]
,[fin]
,[heure_debut]
,[duree])
SELECT 'Encore v3',debut,fin,heure_debut,duree FROM creneau WHERE id=1;
SET #SCOPEIDENTITY = SCOPE_IDENTITY();
INSERT INTO [RdV].[dbo].[creneau_jour] ([creneau_id] ,[jour_semaine])
SELECT #SCOPEIDENTITY, jour_semaine FROM creneau_jour WHERE creneau_id=1;
GO