Populating Records From 1 table into 2 tables and retreiving ID to be used - tsql

Question

I have records from a SOURCE1 table and I need to move those records into 2 different tables called DESTINATION1 and DESTINATION2
I know how to copy records from the SOURCE1 table into the DESTINATION1 table by using a INSERT INTO SELECT statement, but I run into a problem. What I need is when copying the REMARKS data from SOURCE1, I need to copy that into the DESTINATION2 table, retrieve the REFID and copy that REFID into the respective record in my DESTINATION1 table in the column FK_DESTINATION2_REFID.
The criteria is to copy only the records in the SOURCE1 table with the STATUS of 1 and only copy the respective REMARKS data into the DESTINATION2 table if its not null. Also, is it possible to do this without a Stored Procedure, if not, not a big deal.
CREATE TABLE #Source1 (
RefID int IDENTITY(1,1) NOT NULL,
Status bit NULL,
ProviderID int NULL,
Remarks varchar(max) NULL
)
Create Table #Destination1 (
RefID int IDENTITY(1,1) NOT NULL,
Status bit NULL,
ProviderID int NULL,
FK_Destination2_RefID int
)
Create Table #Destination2 (
RefID int IDENTITY(1,1) NOT NULL,
Remarks varchar(max) NULL
)
-- Insert Records into #Source1
Insert Into #Source1 values (1,100,'Test 555')
Insert Into #Source1 values (0,400,'Test 123')
Insert Into #Source1 values (1,300,NULL)
Insert Into #Source1 values (1,500,'Test 999')
Insert Into #Source1 values (1,200,NULL)
--Drop table #Source1
--Drop table #Destination1
--Drop table #Destination2
Results would look like this:
Source1 Table
RefID Status ProviderID Remarks
----------- ------ ----------- -----------
1 1 100 Test 555
2 0 400 Test 123
3 1 300 NULL
4 1 500 Test 999
5 1 200 NULL
Destination1 Table
RefID Status ProviderID FK_Destination2_RefID
----------- ------ ----------- ---------------------
1 1 100 1
2 1 300 NULL
3 1 500 2
4 1 200 NULL
Destination2 Table
RefID Remarks
------ ---------
1 Test 555
2 Test 999
EDIT: My #SOURCE1 table will be hold a dynamic set amount of records. In this instance I have 5 Records. But next time, it could be 50 records. At each time using the #SOURCE1 table, I will truncate the table each time and the REFID will start back to 1. Since this is a temporary holding table for a batch of records, I need to move them permanently to the 2 Destination tables as indicated when finished so in essence they can look like the #SOURCE1 table originally.

Answer 1

Well, you are using IDENTITY property on the #Destination tables. This means you are trying to assign a new PK to them, and it would thus remove the uniqueness / PK --> FK link to the #Source table... and it's unnecessary since your source table is already handling this. So, just remove this property from m the #Destination tables and do your inserts as you suspect. You can still add a UNIQUE CONSTRAINT on the destination tables if you want... but if this is all it is used for you should never run into non-uniqueness. Your FK will not be sequential, but that's because you are restricting what data to insert into it. If you want another PK IDENTITY column, just keep that separate. I have included that below as an example
CREATE TABLE #Source1 (
RefID int IDENTITY(1,1) NOT NULL,
Status bit NULL,
ProviderID int NULL,
Remarks varchar(max) NULL
)
Create Table #Destination1 (
SomePK int IDENTITY(1,1),
RefID int ,
Status bit NULL,
ProviderID int NULL,
FK_Destination2_RefID int
)
Create Table #Destination2 (
SomePK int IDENTITY(1,1),
RefID int ,
Remarks varchar(max) NULL
)
-- Insert Records into #Source1
Insert Into #Source1 values (1,100,'Test 555')
Insert Into #Source1 values (0,400,'Test 123')
Insert Into #Source1 values (1,300,NULL)
Insert Into #Source1 values (1,500,'Test 999')
Insert Into #Source1 values (1,200,NULL)
insert into #Destination2
select
RefID
,Remarks
from #Source1
where
Remarks is not null and Status = 1
insert into #Destination1
select
s.RefID
,s.Status
,s.ProviderID
,d.RefID
from
#Source1 s
left join #Destination2 d on d.RefID = s.RefID
where
s.Status = 1
select * from #Source1
select * from #Destination1
select * from #Destination2
Drop table #Source1
Drop table #Destination1
Drop table #Destination2