Sql server SQL Server-显示数据“向下”

我有一张这样的桌子：

CREATE TABLE #Categories (CategoryText VARCHAR(50), CategoryUrl VARCHAR(50), SubCategoryText VARCHAR(50), SubCategoryUrl VARCHAR(50))
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 'Chandeliers', 'http://chandeliers.com' 
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 'Lamps', 'http://lamps.com' 
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 'Hooks', 'http://hooks.com' 
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 'Hinges', 'http://hinges.com' 

这看起来像：

CategoryText                                       CategoryUrl                                        SubCategoryText                                    SubCategoryUrl
-------------------------------------------------- -------------------------------------------------- -------------------------------------------------- --------------------------------------------------
Lighting                                           http://lighting.com                                Chandeliers                                        http://chandeliers.com
Lighting                                           http://lighting.com                                Lamps                                              http://lamps.com
Hardware                                           http://hardware.com                                Hooks                                              http://hooks.com
Hardware                                           http://hardware.com                                Hinges                                             http://hinges.com

我将如何动态显示数据，如下所示：

Type        Text                                               Url
----------- -------------------------------------------------- --------------------------------------------------
Category    Lighting                                           http://lighting.com
SubCategory Chandeliers                                        http://chandeliers.com
SubCategory Lamps                                              http://lamps.com
Category    Hardware                                           http://hardware.com
SubCategory Hinges                                             http://hinges.com
SubCategory Hooks                                              http://hooks.com

我还需要保持类别和子类别的正确顺序

我想到了UNPIVOT，但我不知道如何在这里应用它，因为数据结构/需求与大多数示例不同

感谢您的帮助。

尝试以下方法：

select distinct
  Type = 'Category',
  Parent = CategoryText,
  Text = CategoryText,
  Url = CategoryUrl
from #Categories
union all
select 
  Type = 'SubCategory',
  Parent = CategoryText,
  Text = SubCategoryText,
  Url = SubCatgoryUrl
from  #Categories
order by Parent,Type,Text

试试这个：

select distinct
  Type = 'Category',
  Parent = CategoryText,
  Text = CategoryText,
  Url = CategoryUrl
from #Categories
union all
select 
  Type = 'SubCategory',
  Parent = CategoryText,
  Text = SubCategoryText,
  Url = SubCatgoryUrl
from  #Categories
order by Parent,Type,Text

---

这应该适用于你…使用具有排名功能的联合

select CASE WHEN SubCategoryText IS NULL THEN 'Category' ELSE 'SubCategory' END as Type,
        CASE WHEN SubCategoryText IS NULL THEN CategoryText ELSE SubCategoryText END as Type,
        CategoryUrl
from (      
select *, RANK() OVER (ORDER BY CategoryText, SubCategoryText) AS Rank
from (
select CategoryText, null as SubCategoryText, CategoryUrl
from #Categories
union 
select CategoryText, SubCategoryText, SubCategoryUrl
from #Categories
)a)b
order by Rank

---

这应该适用于你…使用具有排名功能的联合

select CASE WHEN SubCategoryText IS NULL THEN 'Category' ELSE 'SubCategory' END as Type,
        CASE WHEN SubCategoryText IS NULL THEN CategoryText ELSE SubCategoryText END as Type,
        CategoryUrl
from (      
select *, RANK() OVER (ORDER BY CategoryText, SubCategoryText) AS Rank
from (
select CategoryText, null as SubCategoryText, CategoryUrl
from #Categories
union 
select CategoryText, SubCategoryText, SubCategoryUrl
from #Categories
)a)b
order by Rank

---

我保持了类别和子类别的顺序，使这项工作得以进行

我使用@SliverNinja的CASE语句来获得正确的类型和文本

对于排序，我添加了两列CategorySortOrder和SubCategorySortOrder。我组合了类别和子类别排序器来创建一个新的单排序器列。然后，我按照该列进行分组和排序，以获得最终结果

CREATE TABLE #Categories (CategoryText VARCHAR(50), CategoryUrl VARCHAR(50), CategorySortOrder INT,SubCategoryText VARCHAR(50), SubCategoryUrl VARCHAR(50), SubCategorySortOrder INT)
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 1, 'Chandeliers', 'http://chandeliers.com',1
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 1, 'Lamps', 'http://lamps.com' , 2
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 2 ,'Hooks', 'http://hooks.com' ,1
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 2,'Hinges', 'http://hinges.com' ,2

SELECT
    Type
    , Text
    , Url
    , MIN(SortOrder)[SortOrder]
INTO 
    #cats
FROM
    (
    SELECT 
        CASE WHEN SubCategoryText IS NULL THEN 'Category' ELSE 'SubCategory' END [Type]
        , CASE WHEN SubCategoryText IS NULL THEN CategoryText ELSE SubCategoryText END [Text]
        , [Url]
        , CASE WHEN SubCategoryText IS NULL THEN CAST(CAST(CategorySortOrder AS VARCHAR) + CAST(SubCategorySortOrder AS VARCHAR) AS NUMERIC)  ELSE CAST(CAST(CategorySortOrder AS VARCHAR) + CAST(SubCategorySortOrder AS VARCHAR) AS NUMERIC) + 1 END[SortOrder]
    FROM
        (
            SELECT
                CategoryText
                , NULL [SubCategoryText]
                , CategoryUrl [Url]
                , CategorySortOrder
                , SubCategorySortOrder
            FROM
                #Categories
            UNION ALL
            SELECT
                CategoryText
                , SubCategoryText
                , SubCategoryUrl
                , CategorySortOrder
                , SubCategorySortOrder
            FROM
                #Categories
        )t
    )t
GROUP BY
    Type
    , Text
    , Url
ORDER BY
    SortOrder 

SELECT 
    Type
    , Text
    , Url
FROM
    #Cats

---

我保持了类别和子类别的顺序，使这项工作得以进行

我使用@SliverNinja的CASE语句来获得正确的类型和文本

对于排序，我添加了两列CategorySortOrder和SubCategorySortOrder。我组合了类别和子类别排序器来创建一个新的单排序器列。然后，我按照该列进行分组和排序，以获得最终结果

CREATE TABLE #Categories (CategoryText VARCHAR(50), CategoryUrl VARCHAR(50), CategorySortOrder INT,SubCategoryText VARCHAR(50), SubCategoryUrl VARCHAR(50), SubCategorySortOrder INT)
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 1, 'Chandeliers', 'http://chandeliers.com',1
INSERT INTO #Categories SELECT 'Lighting', 'http://lighting.com', 1, 'Lamps', 'http://lamps.com' , 2
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 2 ,'Hooks', 'http://hooks.com' ,1
INSERT INTO #Categories SELECT 'Hardware', 'http://hardware.com', 2,'Hinges', 'http://hinges.com' ,2

SELECT
    Type
    , Text
    , Url
    , MIN(SortOrder)[SortOrder]
INTO 
    #cats
FROM
    (
    SELECT 
        CASE WHEN SubCategoryText IS NULL THEN 'Category' ELSE 'SubCategory' END [Type]
        , CASE WHEN SubCategoryText IS NULL THEN CategoryText ELSE SubCategoryText END [Text]
        , [Url]
        , CASE WHEN SubCategoryText IS NULL THEN CAST(CAST(CategorySortOrder AS VARCHAR) + CAST(SubCategorySortOrder AS VARCHAR) AS NUMERIC)  ELSE CAST(CAST(CategorySortOrder AS VARCHAR) + CAST(SubCategorySortOrder AS VARCHAR) AS NUMERIC) + 1 END[SortOrder]
    FROM
        (
            SELECT
                CategoryText
                , NULL [SubCategoryText]
                , CategoryUrl [Url]
                , CategorySortOrder
                , SubCategorySortOrder
            FROM
                #Categories
            UNION ALL
            SELECT
                CategoryText
                , SubCategoryText
                , SubCategoryUrl
                , CategorySortOrder
                , SubCategorySortOrder
            FROM
                #Categories
        )t
    )t
GROUP BY
    Type
    , Text
    , Url
ORDER BY
    SortOrder 

SELECT 
    Type
    , Text
    , Url
FROM
    #Cats

---

有没有办法保持原来的秩序，首先是照明类别？如果有一个排序栏会有帮助吗？SliverNinja下面的回答演示了排名功能的使用。谢谢大家-我知道只要我有一个排序栏，它就可以与提供的所有答案一起工作。现在是最难的部分。。答案是：有没有一种方法可以保持原有的秩序，首先是照明类别？如果有一个排序栏会有帮助吗？SliverNinja下面的回答演示了排名功能的使用。谢谢大家-我知道只要我有一个排序栏，它就可以与提供的所有答案一起工作。现在是最难的部分。。哪一个可以作为答案：PSorry伙计们，我意识到，子类别的排序规则没有被保留。除了父类别的排序器，还有没有办法保留子类别的排序器？对不起，伙计们，我意识到，子类别的排序器没有被保留。除了父类别的排序器外，是否有方法保留子类别的排序器？