Programmatically set identity seed in a table variable

Question

I need to create a table variable with an identity seed that starts with the max value of a field in another table?

I\'ve tried this:

DECLARE @Identi         


        

Answer 1

I ended up doing the following:

DECLARE @NewId INT

SELECT @NewId = MAX(ID) FROM MyIDSTable

DECLARE @MyTempData TABLE (
    Id int not null primary key
    ,Field1 int not null
    ,Field2 nvarchar(25) not null
    ,Field3 datetime
)

INSERT INTO @MyTempData
SELECT  ROW_NUMBER() OVER ( Order by [C].[Cancel_id] ASC) + @NewId -1 [RowNum]
        ,Field1
        ,Field2
        ,Field3

INSERT INTO MyTable SELECT * FROM @MyTempData

UPDATE MYIDSTable SET ID = (SELECT MAX(ID) FROM @MyTempData) + 1 WHERE Name = 'Something'

Thank you