大家好，我是考100分的小小码 ，祝大家学习进步，加薪顺利呀。今天说一说Mysql 游标 获取order by limit 1 结果不是selec 出来的结果,希望您对编程的造诣更进一步.
SELECT location_no,
lot_batch_no,
qty_onhand,
qty_reserved,
id,
receipt_date,
product_date,
expiry_date,
pos_x
FROM (
SELECT s.location_no location_no,
s.lot_batch_no lot_batch_no,
s.qty_onhand qty_onhand,
s.qty_reserved qty_reserved,
s.id id,
s.receipt_date receipt_date,
s.product_date product_date,
s.expiry_date expiry_date,
m.pos_x pos_x
FROM bay_list b, inventory_location m, inventory_part_in_stock s
WHERE b.logistics_company_id = m.logistics_company_id
AND b.bay_no = m.bay_no
AND b.warehouse = m.warehouse
AND m.lock_inventory = 0 -- 未锁定
AND (b.bay_type = 1 OR 1 IS NULL)
AND m.location_no != "JHKW" -- JHKW为虚拟库位,不可以拣
AND m.logistics_company_id = s.logistics_company_id
AND m.warehouse = s.warehouse
AND m.location_no = s.location_no
AND s.qty_reserved >= 0
AND s.qty_onhand - s.qty_reserved > 0
AND s.part_no = "2047222"
AND s.logistics_company_id = 10003
AND s.warehouse = "GLP"
AND s.owner_id = "CRM-YC"
AND b.pick_type != 3 -- 拣货类型 (1. 零散拣货 ; 2.批量拣货 ; 3. 预包拣货 )
AND s.lot_batch_no LIKE CONCAT("%", "@NRM@NRM", "%") -- @contrl_state@qulity_state
) k
ORDER BY product_date
LIMIT 1)代码100分
做了order by 第一个出来的时 生产日期最旧的,
但是跑存储过程的时候select 出来的缺不是这样的存储过程里面
代码100分DELIMITER $$
USE `zita_zwy_wms`$$
DROP PROCEDURE IF EXISTS `InventoryPartInStockUtil_FindAndResvWithLot`$$
CREATE DEFINER=`root`@`localhost` PROCEDURE `InventoryPartInStockUtil_FindAndResvWithLot`(
OUT qty_to_resv_ INT,
OUT location_no_ VARCHAR(30),
OUT lot_batch_no_ VARCHAR(30),
IN company_id_ INT,
IN warehouse_ VARCHAR(20),
IN owner_id_ VARCHAR(20),
IN part_no_ VARCHAR(30),
IN qty_remain_ INT,
IN location_type_ INT, -- 库位类型.1.拣货区,2.存储区, 3: 次品区; 4: 待上架; 5: 退货区; 6: 分拣区
IN user_id_ VARCHAR(40),
IN activity_id_ INT,
IN pick_type_ INT,
IN part_lot_batch_no_ VARCHAR(20))
BEGIN
DECLARE id_ INT;
DECLARE qty_onhand_ INT;
DECLARE qty_reserved_ INT;
DECLARE order_by_ VARCHAR(2000);
DECLARE receipt_date_ DATETIME;
DECLARE product_date_ DATETIME;
DECLARE expiry_date_ DATETIME;
DECLARE pos_x_ INT;
IF ((nvl(activity_id_ , 0) = 0) OR (pick_type_ != 3)) THEN -- 拣货类型(1汇总拣货,2一单一品,3活动单拣货,4边分边拣, 5逐单拣货)
BEGIN
-- 非活动订单的商品预留
DECLARE get_inv_stk CURSOR FOR
SELECT location_no,
lot_batch_no,
qty_onhand,
qty_reserved,
id,
receipt_date,
product_date,
expiry_date,
pos_x
FROM (
SELECT s.location_no location_no,
s.lot_batch_no lot_batch_no,
s.qty_onhand qty_onhand,
s.qty_reserved qty_reserved,
s.id id,
s.receipt_date receipt_date,
s.product_date product_date,
s.expiry_date expiry_date,
m.pos_x pos_x
FROM bay_list b, inventory_location m, inventory_part_in_stock s
WHERE b.logistics_company_id = m.logistics_company_id
AND b.bay_no = m.bay_no
AND b.warehouse = m.warehouse
AND m.lock_inventory = 0 -- 未锁定
AND m.location_no != "JHKW" -- JHKW为虚拟库位,不可以拣货
AND (b.bay_type = location_type_ OR location_type_ IS NULL)
AND m.logistics_company_id = s.logistics_company_id
AND m.warehouse = s.warehouse
AND m.location_no = s.location_no
AND s.qty_reserved >= 0
AND s.qty_onhand - s.qty_reserved > 0
AND s.part_no = part_no_
AND s.logistics_company_id = company_id_
AND s.warehouse = warehouse_
AND s.owner_id = owner_id_
AND b.pick_type != 3 -- 拣货类型 (1. 零散拣货 ; 2.批量拣货 ; 3. 预包拣货 )
AND s.lot_batch_no LIKE CONCAT("%", part_lot_batch_no_, "%") -- @contrl_state@qulity_state
) k
ORDER BY order_by_
LIMIT 1;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET id_ = NULL;
SET order_by_ := CompanyOwnerPriotiryUtil_GetConfig(company_id_, owner_id_);
OPEN get_inv_stk;
FETCH get_inv_stk INTO location_no_, lot_batch_no_, qty_onhand_, qty_reserved_, id_, receipt_date_, product_date_, expiry_date_, pos_x_;
CLOSE get_inv_stk;
SELECT location_no_, lot_batch_no_, qty_onhand_, qty_reserved_, id_, receipt_date_, product_date_, expiry_date_, pos_x_;
END;
ELSE
BEGIN
-- 活动订单的商品预留
DECLARE get_inv_stk CURSOR FOR
SELECT s.location_no location_no,
s.lot_batch_no lot_batch_no,
s.qty_onhand qty_onhand,
s.qty_reserved qty_reserved,
s.id id
FROM inventory_location m, inventory_part_in_stock s , activity_policy_loca a
WHERE a.logistics_company_id = s.logistics_company_id
AND a.warehouse = s.warehouse
AND a.owner_id = s.owner_id
AND m.logistics_company_id = s.logistics_company_id
AND m.warehouse = s.warehouse
AND m.lock_inventory = 0 -- 未锁定
AND m.location_no != "JHKW" -- JHKW为虚拟库位,不可以拣货
AND a.activity_id = activity_id_
AND s.qty_onhand - s.qty_reserved > 0
AND s.part_no = part_no_
AND s.logistics_company_id = company_id_
AND s.warehouse = warehouse_
AND s.owner_id = owner_id_
AND s.location_no = a.location_no
AND s.lot_batch_no LIKE CONCAT("%", part_lot_batch_no_, "%") -- @contrl_state@qulity_state
ORDER BY s.lot_batch_no
LIMIT 1;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET id_ = NULL;
OPEN get_inv_stk;
FETCH get_inv_stk INTO location_no_, lot_batch_no_, qty_onhand_, qty_reserved_, id_;
CLOSE get_inv_stk;
END;
END IF;
SET qty_to_resv_ := 0;
IF id_ > 0 THEN
-- 锁定记录
CALL InventoryPartInStockUtil_LockById( id_,
qty_onhand_,
"InventoryPartInStockUtil_FindAndResvWithLot" );
--
SET qty_to_resv_ := LEAST( qty_onhand_ - qty_reserved_ , qty_remain_ );
UPDATE inventory_part_in_stock
SET qty_reserved = GREATEST(0, LEAST(qty_onhand_, qty_reserved_ + qty_to_resv_))
WHERE id = id_;
END IF;
END$$
DELIMITER ;
注意:
解决方案 1.
把order by 放到最里面去,结果正确
改了后还是不行
把变量放到 declare 这个游标前就可以了
SET @order_by_ := "s.product_date";
SELECT s.location_no location_no,
s.lot_batch_no lot_batch_no,
s.qty_onhand qty_onhand,
s.qty_reserved qty_reserved,
s.id id,
s.receipt_date receipt_date,
s.product_date product_date,
s.expiry_date expiry_date,
m.pos_x pos_x
FROM bay_list b, inventory_location m, inventory_part_in_stock s
WHERE b.logistics_company_id = m.logistics_company_id
AND b.bay_no = m.bay_no
AND b.warehouse = m.warehouse
AND m.lock_inventory = 0 -- 未锁定
AND m.location_no != "JHKW" -- JHKW为虚拟库位,不可以拣货
AND (b.bay_type = 1 OR 1 IS NULL)
AND m.logistics_company_id = s.logistics_company_id
AND m.warehouse = s.warehouse
AND m.location_no = s.location_no
AND s.qty_reserved >= 0
AND s.qty_onhand - s.qty_reserved > 0
AND s.part_no = "2047222"
AND s.logistics_company_id = 10003
AND s.warehouse = "GLP"
AND s.owner_id = "CRM-YC"
AND b.pick_type != 3 -- 拣货类型 (1. 零散拣货 ; 2.批量拣货 ; 3. 预包拣货 )
AND s.lot_batch_no LIKE CONCAT("%", "@NRM@NRM", "%") -- @contrl_state@qulity_state
ORDER BY @order_by_
变量不可以写到order by 里面
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