[英]Stored procedure - looping through results and store them in a temporary table
我遇到的問題是Mysql工作台在' DELARE tempOrder_id int;
附近報告了SQL語法錯誤DELARE tempOrder_id int;
'雖然我似乎看不到錯誤,但帶有紅色下划線的聲明,也尚未能夠對此進行測試,因此,如果您發現任何其他錯誤或更有效的方式運行此命令,請說。 容易理解,我從查詢中獲取ID,然后使用該ID運行新查詢並將其存儲在表格中,以便我可以返回它
-- --------------------------------------------------------------------------------
-- Routine DDL
-- Note: comments before and after the routine body will not be stored by the server
-- --------------------------------------------------------------------------------
DELIMITER $$
CREATE PROCEDURE `DLP_orders ` ()
BEGIN
Create temporary table if not exists MyReturnTable
(id int, order_id int, total_tickets int, product_id int, product_name varchar(255), PRIMARY KEY (id)) ENGINE=MEMORY;
DECLARE tempOrder_id int;
DECLARE order_Cursor;
SELECT o.id FROM orders as o
INNER JOIN orders_items as oi
ON o.id = oi.order_id
INNER JOIN contracts as c
ON c.id = oi.contract_id
WHERE (o.created BETWEEN '2013-01-01 00:00:00' AND '2013-02-02 23:59:59' OR o.updated BETWEEN '2013-01-01 00:00:00' AND '2013-02-02 23:59:59') AND (c.supplier_id = 95 || c.supplier_id = 255);
OPEN order_Cursor;
FETCH NEXT FROM order_Cursor INTO @tempOrder_id;
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO MyReturnTable (order_id, total_tickets, product_id, product_name)
SELECT o.id, oi.total_tickets, p.id, p.name FROM orders as o
INNER JOIN orders_items as oi
ON o.id = oi.order_id
INNER JOIN products as p
ON p.id = oi.product_id
INNER JOIN contracts as c
ON c.id = oi.contract_id
WHERE o.id = @tempOrder_id;
FETCH NEXT FROM order_Cursor INTO @tempOrder_id;
END;
CLOSE order_Cursor;
DEALLOCATE order_Cursor;
SELECT * FROM MyReturnTable;
END$$
經過一些調整后,這是我的解決方案
-- --------------------------------------------------------------------------------
-- Routine DDL
-- Note: comments before and after the routine body will not be stored by the server
-- --------------------------------------------------------------------------------
DELIMITER $$
CREATE PROCEDURE `DLP_orders` ()
BEGIN
DECLARE tempOrder_id int;
DECLARE order_Cursor CURSOR FOR
SELECT o.id FROM orders as o
INNER JOIN orders_items as oi
ON o.id = oi.order_id
INNER JOIN contracts as c
ON c.id = oi.contract_id
WHERE (o.created BETWEEN '2013-01-01 00:00:00' AND '2013-02-02 23:59:59' OR o.updated BETWEEN '2013-01-01 00:00:00' AND '2013-02-02 23:59:59') AND (c.supplier_id = 95 || c.supplier_id = 255);
OPEN order_Cursor;
FETCH NEXT FROM order_Cursor INTO tempOrder_id;
WHILE @@FETCH_STATUS = 0 DO
INSERT INTO MyReturnTable (order_id, total_tickets, product_id, product_name)
SELECT o.id, oi.total_tickets, p.id, p.name FROM orders as o
INNER JOIN orders_items as oi
ON o.id = oi.order_id
INNER JOIN products as p
ON p.id = oi.product_id
INNER JOIN contracts as c
ON c.id = oi.contract_id
WHERE o.id = @tempOrder_id;
FETCH NEXT FROM order_Cursor INTO tempOrder_id;
END WHILE;
CLOSE order_Cursor;
SELECT * FROM MyReturnTable;
END
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