Нещо като това? Използвам променлива с таблица, за да „добавя“ колона към оригиналната таблица с формуляри.
DECLARE @Form1 UNIQUEIDENTIFIER=NEWID();
DECLARE @Form2 UNIQUEIDENTIFIER=NEWID();
DECLARE @tblForms TABLE(id UNIQUEIDENTIFIER,FormName VARCHAR(100));
INSERT INTO @tblForms VALUES(@Form1,'test1'),(@Form2,'test2');
DECLARE @tblFields TABLE(id UNIQUEIDENTIFIER,FormId UNIQUEIDENTIFIER,FieldName VARCHAR(100));
INSERT INTO @tblFields VALUES(NEWID(),@Form1,'test1.1'),(NEWID(),@Form1,'test1.2'),(NEWID(),@Form1,'test1.3')
,(NEWID(),@Form2,'test2.1'),(NEWID(),@Form2,'test2.2'),(NEWID(),@Form2,'test2.3');
--These are "your original IDs"
SELECT frms.id,frms.FormName
,flds.id,flds.FieldName
FROM @tblForms AS frms
INNER JOIN @tblFields AS flds ON frms.id=flds.FormId ;
--Copy forms into a new table with an extra column
DECLARE @tblFormsNeu TABLE(id UNIQUEIDENTIFIER,FormName VARCHAR(100),myNewID UNIQUEIDENTIFIER);
INSERT INTO @tblFormsNeu
SELECT id,FormName,NEWID() FROM @tblForms;
SELECT frms.myNewID, frms.FormName
,NEWID() AS myNewFieldID,flds.FieldName
FROM @tblFormsNeu AS frms
INNER JOIN @tblFields AS flds ON frms.id=flds.FormId