Question

我有一个存储过程，在调用时返回以下值：

EXEC    @return_value = [dbo].[Activities_GetCrazyTables]
        @iActivity = 49,
        @iLanding = 6,
        @iFirst = 1,
        @iLast = 10,
        @strSearch = '',
        @bActiveOnly = 0

orderkey yellowpage_rownum yellowpage_id yellowpage_name
    表4 1 2022     牛山
     table4 2 2055 Lake Mendocino
    表4 3 2099 吊灯

但是，当我在查询分析器中执行存储过程的实际代码时，它会以不同的方式返回结果：

orderkey yellowpage_rownum yellowpage_id yellowpage_name
    表4 1 2022     吊灯
     table4 2 2055 牛山
     table4 3 2099 Lake Mendocino

与运行存储过程相比，当我单独运行查询时，为什么会得到正确的排序顺序？

存储过程的代码如下：

set @strSearch = LOWER(@strSearch)

select orderkey, y.* from 
(
    /* get the featured sponsors in order specified in the database */
    select ROW_NUMBER() over (order by x.orderkey) as yellowpage_rownum, x.* 
    from (
    /* top tier featured 1-5 */
    select yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, story_count,
    'table1' as orderkey, yellowpage_active from
    (select top 5 a.* from 
    (select ROW_NUMBER() over (order by yellowpage_name) as rownum, yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, (select COUNT(storyyellowpage_story) from storyyellowpagexref join stories on (story_id=storyyellowpage_story) where story_active=1 and storyyellowpage_yellowpage=y.yellowpage_id) as story_count, yellowpage_active
    from yellowpageactivityxref 
    join activities on (activity_id=yellowpageactivity_activity) 
    join yellowpages y on (yellowpage_id=yellowpageactivity_yellowpage) 
    join landingcities on (landingcity_city=yellowpage_city) 
    where yellowpageactivity_activity=@iActivity and landingcity_landing=@iLanding and yellowpage_featuredsponsor=1 and 
        (LOWER(yellowpage_name) LIKE '%' + @strSearch + '%' or LOWER(yellowpage_address1) LIKE '%' + @strSearch + '%')) as a 
    where a.rownum between 1 and 5 order by newid()) as b
    union all
    /* top tier featured 6-10 */
    select yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, story_count,
    'table2' as orderkey, yellowpage_active from
    (select top 5 a.* from 
    (select ROW_NUMBER() over (order by yellowpage_name) as rownum, yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, (select COUNT(storyyellowpage_story) from storyyellowpagexref join stories on (story_id=storyyellowpage_story) where story_active=1 and storyyellowpage_yellowpage=y.yellowpage_id) as story_count, yellowpage_active
    from yellowpageactivityxref 
    join activities on (activity_id=yellowpageactivity_activity) 
    join yellowpages y on (yellowpage_id=yellowpageactivity_yellowpage) 
    join landingcities on (landingcity_city=yellowpage_city) 
    where yellowpageactivity_activity=@iActivity and landingcity_landing=@iLanding and yellowpage_featuredsponsor=1 and 
        (LOWER(yellowpage_name) LIKE '%' + @strSearch + '%' or LOWER(yellowpage_address1) LIKE '%' + @strSearch + '%')) as a 
    where a.rownum between 6 and 10 order by newid()) as b
    union all
    /* top tier featured 11-15 */
    select yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, story_count,
    'table3' as orderkey, yellowpage_active from
    (select top 5 a.* from 
    (select ROW_NUMBER() over (order by yellowpage_name) as rownum, yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, (select COUNT(storyyellowpage_story) from storyyellowpagexref join stories on (story_id=storyyellowpage_story) where story_active=1 and storyyellowpage_yellowpage=y.yellowpage_id) as story_count, yellowpage_active
    from yellowpageactivityxref 
    join activities on (activity_id=yellowpageactivity_activity) 
    join yellowpages y on (yellowpage_id=yellowpageactivity_yellowpage) 
    join landingcities on (landingcity_city=yellowpage_city) 
    where yellowpageactivity_activity=@iActivity and landingcity_landing=@iLanding and yellowpage_featuredsponsor=1 and 
        (LOWER(yellowpage_name) LIKE '%' + @strSearch + '%' or LOWER(yellowpage_address1) LIKE '%' + @strSearch + '%')) as a 
    where a.rownum between 11 and 15 order by newid()) as b
    union all
    /* get the rest and sort by name */
    select yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, story_count,
    'table4' as orderkey, yellowpage_active from
    (select top 2147483647 a.* from 
    (select yellowpage_id, yellowpage_name, yellowpage_address1, yellowpage_address2, yellowpage_city, yellowpage_state, yellowpage_zip, 
    yellowpage_phone, yellowpage_url, yellowpage_latitude, yellowpage_longitude, yellowpage_featuredsponsor, yellowpage_premium, yellowpage_order, 
    yellowpageactivity_order, (select COUNT(storyyellowpage_story) from storyyellowpagexref join stories on (story_id=storyyellowpage_story) where story_active=1 and storyyellowpage_yellowpage=y.yellowpage_id) as story_count, yellowpage_active
    from yellowpageactivityxref 
    join activities on (activity_id=yellowpageactivity_activity) 
    join yellowpages y on (yellowpage_id=yellowpageactivity_yellowpage) 
    join landingcities on (landingcity_city=yellowpage_city) 
    where yellowpageactivity_activity=@iActivity and landingcity_landing=@iLanding and yellowpage_featuredsponsor=0 and 
        (LOWER(yellowpage_name) LIKE '%' + @strSearch + '%' or LOWER(yellowpage_address1) LIKE '%' + @strSearch + '%')) as a 
    order by yellowpage_name) as b
    ) as x
    ) as y where y.yellowpage_rownum between @iFirst and @iLast

Answer 1

您的查询（联盟的结果）在没有order by语句的情况下运行。这意味着结果的顺序不是确定性的，这意味着它在不同的运行中可能是不同的。

要解决此问题，您需要在最后一个where语句后添加一个Order by Statement：

as y where y.yellowpage_rownum between @iFirst and @iLast Order by col1, col2

您还应该通过最后一个查询中的yellowpage_name语句消除该顺序，因为这与最终结果集的排序无关。

Answer 2

这是一个查询的地狱，因此很难准确地了解正在发生的事情。但是，您在完整结果集上缺少Order By。

SQL Server是关系数据库。这是关键概念。除非您明确定义了所需的顺序，否则数据库引擎无法保证返回的行的顺序。您可以在两个不同的位置使用完全相同的查询，并获得不同的结果顺序。

在关系理论中，集合（A，B，C）与（C，B，A）相同。订单无关紧要。

Answer 3

好吧，你按orderkey订购，这不是唯一的。具有相同orderkey的行不一定以相同的顺序出现。

扩展您的order by子句以解决问题。

存储的proc订单结果与在查询分析器中运行时的结果不同

3 个答案: