Question

出于某种原因，我无法将结果设置为限制只有价格状态为“正常”的产品。当我使用像where pricestatus like 'normal'这样的where子句时，结果集也会过滤其他记录。这里有什么想法吗？

SELECT   
   od.order_id, 
   ISNULL(p.pricestatus,'normal') as pricestatus,
   ISNULL(od.partnumber,'unknown') as partnumber,
   od.product_id, 
   od.producttitle, 
   qty, 
   od.price, 
   extprice, 
   customfield1 AS prodstatus, 
   ISNULL(categorytitle,'-') AS categorytitle, 
   needbydate, 
   customfield2 AS vendor, 
   (SELECT opttitle 
      FROM options o 
     WHERE Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
           AND optlevel = 1) AS color, 
   (SELECT opttitle 
      FROM options o 
     WHERE Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
           AND optlevel = 2) AS size, 
   od.producttitle + ISNULL((SELECT opttitle 
                               FROM options o 
                              WHERE Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
                                AND optlevel = 1),'') + ISNULL((SELECT opttitle 
                                                                  FROM options o 
                                                                 WHERE  Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
                                                                   AND optlevel = 2),'') + Cast(od.price AS VARCHAR(15)) AS pkey

FROM     
   orderdetails od 
  INNER JOIN orders ord ON ord.order_id = od.order_id 
  LEFT OUTER JOIN products p ON p.product_id = od.product_id 
  LEFT OUTER JOIN objectgroups ob ON p.objectgroup_id = ob.objectgroup_id 
  LEFT OUTER JOIN categories c ON ob.category_id = c.category_id 
WHERE  
    1=1 
    AND ord.shippingdate BETWEEN {ts '2009-10-05 00:01:00'} AND {ts '2009-10-21 23:59:59'} 
    AND ISNULL(ord.status,0) IN (5,12) 
    AND ISNULL(ord.status,0) <> 6 
    AND ISNULL(ord.status,0) <> 10 
    AND ISNULL(ord.status,0) <> 7 
    AND ISNULL(ord.status,0) <> 8 
ORDER BY 
    pkey

Answer 1

您正在对产品进行LEFT OUTER JOIN。请记住，如果在WHERE子句中放置一个条件，它将把该条件应用于WHOLE集，因此任何不带回产品的行都将自动被过滤掉，因为您的条件不能成立。

您需要将条件添加到您的加入中：

LEFT OUTER JOIN products p 
   ON p.product_id = od.product_id AND p.priceStatus LIKE "%normal%'

Answer 2

数据是什么样的？除非数据完全是文本正常，否则您将不会选择正常的变体。

请尝试以下

WHERE priceStatus LIKE "%normal%'

如果您还想要NULL记录，请使用

   WHERE PriceStatus LIKE '%normal%' or PriceStatus is NULL

Answer 3

我认为您需要将其添加到where子句的末尾

and isnull(p.pricestatus,'normal')  = 'normal'

像这样

SELECT   od.order_id, 
 Isnull(p.pricestatus,'normal') as pricestatus,
      Isnull(od.partnumber,'unknown') as partnumber,

     od.product_id, 
     od.producttitle, 
     qty, 
     od.price, 
     extprice, 
     customfield1                                                                                                                  AS prodstatus, 
     Isnull(categorytitle,'-')                                                                                                     AS categorytitle, 
     needbydate, 
     customfield2                                                                                                                  AS vendor, 
     (SELECT opttitle 
      FROM   options o 
      WHERE  Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
             AND optlevel = 1) AS color, 
     (SELECT opttitle 
      FROM   options o 
      WHERE  Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
             AND optlevel = 2) AS size, 
     od.producttitle + Isnull((SELECT opttitle 
                               FROM   options o 
                               WHERE  Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
                                      AND optlevel = 1),'') + Isnull((SELECT opttitle 
                                                                      FROM   options o 
                                                                      WHERE  Charindex(',' + Cast(o.opt_id AS VARCHAR) + ',',',' + opt_ids + ',') > 0 
                                                                             AND optlevel = 2),'') + Cast(od.price AS VARCHAR(15)) AS pkey 


FROM     orderdetails od 
     INNER JOIN orders ord 
       ON ord.order_id = od.order_id 
     LEFT OUTER JOIN products p 
       ON p.product_id = od.product_id 



     LEFT OUTER JOIN objectgroups ob 
       ON p.objectgroup_id = ob.objectgroup_id 
     LEFT OUTER JOIN categories c 
       ON ob.category_id = c.category_id 
 WHERE  1=1 



  and isnull(p.pricestatus,'normal')  = 'normal'
     AND ord.shippingdate BETWEEN {ts '2009-10-05 00:01:00'} AND {ts '2009-10-21 23:59:59'} 
     AND Isnull(ord.status,0) IN (5,12) 
     AND Isnull(ord.status,0) <> 6 
     AND Isnull(ord.status,0) <> 10 
     AND Isnull(ord.status,0) <> 7 
     AND Isnull(ord.status,0) <> 8 


ORDER BY pkey

无法筛选SQL Server查询中设置的结果

3 个答案: