爲查詢中的每一行調用存儲過程

Question

我試圖在查詢中的每條記錄的循環中調用一個存儲過程。

這是我現在有：

WITH X AS ( 
SELECT customerid FROM DBcustomers 
) 
WHILE(EXISTS (SELECT * FROM X)) 
BEGIN 
    SELECT TOP 1 @Id = customerid FROM X 
    EXEC [dbo].[AnotherSP] @Id , 1 
    DELETE FROM X WHERE customerid = @Id 
END 

，但這並不編譯。

Answer 1

我猜你想要做UPDATE這樣的：

UPDATE ProductTable SET IsActive = 1 
    WHERE customerid IN (SELECT customerid FROM DBcustomers)  

或者您編輯的問題使用光標：

DECLARE @id BIG 
DECLARE Customers CURSOR 
FOR SELECT customerid FROM DBcustomers 

OPEN Customers FETCH NEXT FROM Customers INTO @id 

WHILE @@FETCH_STATUS = 0 
BEGIN 
    EXEC [dbo].[AnotherSP] @id , 1 
    FETCH NEXT FROM Customers INTO @id 
END 
CLOSE Customers 
DEALLOCATE Customers 

Answer 2

UPDATE productTable 
SET  isActive = 1 
WHERE customerId IN 
     (
     SELECT customerId 
     FROM dbCustomers 
     ) 

更新：

DECLARE cr_customer CURSOR 
FOR 
SELECT customerId 
FROM dbCustomers 

DECLARE @id INT 

FETCH NEXT 
FROM cr_customer 
INTO @id 

WHILE @@FETCH_STATUS = 0 
BEGIN 
     EXEC anotherSP @id , 1 
     FETCH NEXT 
     FROM cr_customer 
     INTO @id 
END 

CLOSE cr_customer 

DEALLOCATE 
     cr_customer 

Answer 3

小號像這樣的東西可能會這樣做：

DECLARE @Id INT; 
SELECT TOP 1 @Id = customerid FROM DBcustomers ORDER BY customerid; 
WHILE @Id IS NOT NULL 
BEGIN 
    EXEC [dbo].[AnotherSP] @Id, 1; 
    DECLARE @LastId INT; 
    SELECT @LastId = @Id; 
    SELECT @Id = NULL; 
    SELECT @Id = customerid FROM DBcustomers WHERE customerId > @LastId ORDER BY customerid; 
END;