Question

我制定了这个SQL语句......

  select 
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table1
    UNION ALL
    select 
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table2
    UNION ALL
    select 
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table3

...它给了我以下输出：

blabla          blablabla         blablalasba

10              23                454545
123             2323              445445
123             212               121221

我想添加一个包含一些文字的额外列。

我的最终结果应该是：

             blabla          blablabla         blablalasba

text1        10              23                454545
text2        123             2323              445445
text3        123             212               121221

Answer 1

您需要在UNION的每个部分添加文本：

  select 
        'text1' AS ColumnTitle
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table1
    UNION ALL
    select 
        'text2' AS ColumnTitle
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table2
    UNION ALL
    select 
        'text3' AS ColumnTitle
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table3

Answer 2

那些是“列”而非“行”。您可以添加如下的静态文本：

 select 'text1' text,
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table1
    UNION ALL
    select 'text2' text,
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table2
    UNION ALL
    select 'text3' text,
        SUM(CASE WHEN "XY" LIKE '%XP Pro%' THEN 1 ELSE 0 END) blabla,        
        SUM(CASE WHEN "XYZ" = 1 THEN 1 ELSE 0 END) blablabla,
        SUM(CASE WHEN "ABS" = 1 THEN 1 ELSE 0 END) blablalasba        
    from 
    table3

向表中添加临时行

2 个答案: