Bulk import of excel data into sql and GUID issue

Question

There is an application that users use to capture data. For each record a uniqueidentifier is created and added to a row(GUID).

There is a requirement to bulk upload by passing the application. Data is stored in excel. I am using the Microsoft.Jet.OLEDB.4.0 to select the data from Excel and doing C# SqlBulkCopy tyo insert the values.

Issue is setting the rowduid column to a new GUID for each record. How can i achieve this. I thought by doing something like a "Select *, newguid as ID FROM [sheet1$]" but i dont know if there is such a query in excel. Please help. Thanks.

Answer 1

(Since a default value of NEWID() can't be created) Can you do a post-insert UPDATE, such as ...

CREATE TABLE ##GUID(
    ID INT,
    ValueOne VARCHAR(1),
    NewGuid UNIQUEIDENTIFIER
)

INSERT INTO ##GUID (ID,ValueOne)
VALUES (1,'A')
    , (2,'B')
    , (3,'C')

SELECT *
FROM ##GUID

-- after the INSERT, update the table with the GUID
UPDATE ##GUID
SET NewGuid = NEWID()

SELECT *
FROM ##GUID

DROP TABLE ##GUID