CREATE TABLE #Customers (ID INT, CustomerName NVARCHAR(400))
;WITH N1(C) AS (SELECT 0 UNION ALL SELECT 0)
,N2(C) AS (SELECT 0 FROM N1 AS T1 CROSS JOIN N1 AS T2)
,N3(C) AS (SELECT 0 FROM N2 AS T1 CROSS JOIN N2 AS T2)
,N4(C) AS (SELECT 0 FROM N3 AS T1 CROSS JOIN N3 AS T2)
,Ides(ID) AS (SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) FROM N4)
INSERT INTO #Customers (ID, CustomerName)
SELECT i.ID
,'Customer: ' + TRY_CAST(i.ID AS NVARCHAR)
FROM Ides i;
SELECT *
FROM #Customers c