如何只选择表中的每一个第n行？

Question

我有一张桌子。它有超过100排和增加。 我想行是这样的：

1 - row (not needed 2,3,4,5,6,7. rows) 
8 - row 
15 - row 
22 - row 
29 - row 

注：在MSSQL 2008 R2

Answer 1

您可以使用ROW_NUMBER和%，F.E.用common-table-expression：

WITH CTE AS 
(
    SELECT t.*, RN= ROW_NUMBER() OVER (Order By OrderColumn ASC) 
    FROM dbo.TableName t 
) 
SELECT * FROM CTE WHERE RN % 7 = 1 

Answer 2

--IT帮助你

CREATE TABLE ##Numeric (Id INT) 

DECLARE @Value INT = 1 

WHILE (@Value <= 100) 
BEGIN 
    INSERT INTO ##Numeric 
    SELECT @Value 

    SET @Value = @Value + 1 
END 

SELECT * 
FROM ##Numeric 
WHERE ID % 7 = 1