带有大小写的案例的SQL请求"(1)第一个ORDER BY术语与结果集中的任何列都不匹配"

Question

我有一个SQL游标的小问题.我正在尝试在android上执行SQL命令.我试图按案例排序返回的内容,但似乎系统不接受返回的值(？!)我已经尝试了一切!你有解决方案吗？;)

cursor = db.rawQuery(c, null);
String c = "SELECT * FROM characters WHERE UPPER(descriptions) LIKE '%" + 
    TextUtils.join("%", arr) + "%' UNION ALL SELECT * FROM words WHERE
    UPPER(descriptions) LIKE '%" + TextUtils.join("%", arr) + "%'
    ORDER BY CASE WHEN UPPER(descriptions) LIKE '" + s + "' THEN 1
    WHEN UPPER(descriptions) LIKE '" + s + "|%' THEN 2 WHEN
    UPPER(descriptions) LIKE '%|" + s + "|%' THEN 2 WHEN UPPER(descriptions)
    LIKE '%|" + s + "' THEN 2 WHEN UPPER(descriptions)
    LIKE '%" + TextUtils.join(" ", arr) + "%' THEN 3 ELSE 4 END, descriptions ASC";

我需要像这样排序命令吗？

SELECT * FROM characters WHERE UPPER(descriptions) LIKE '%" + TextUtils.join("%", arr) + "%' 
UNION ALL
SELECT * FROM words WHERE UPPER(descriptions) LIKE '%" + TextUtils.join("%", arr) + "%'                                     
ORDER BY
    CASE
        WHEN UPPER(descriptions) LIKE '" + s + "' THEN 1          
        WHEN UPPER(descriptions) LIKE '" + s + "|%' THEN 2 
        WHEN UPPER(descriptions) LIKE '%|" + s + "|%' THEN 2 
        WHEN UPPER(descriptions) LIKE '%|" + s + "' THEN 2 
        WHEN UPPER(descriptions) LIKE '%" + TextUtils.join(" ", arr) + "%' THEN 3 
        ELSE 4 
    END,
descriptions ASC

谢谢 ;)

编辑:插入搜索词"测试"后的SQL命令

SELECT * FROM characters WHERE UPPER(descriptions) LIKE '%A%TEST%'
UNION ALL
SELECT * FROM words WHERE UPPER(descriptions) LIKE '%A%TEST%'
ORDER BY
    CASE
        WHEN UPPER(descriptions) LIKE 'A TEST' THEN 1
        WHEN UPPER(descriptions) LIKE 'A TEST|%' THEN 2
        WHEN UPPER(descriptions) LIKE '%|A TEST|%' THEN 2
        WHEN UPPER(descriptions) LIKE '%|A TEST' THEN 2
        WHEN UPPER(descriptions) LIKE '%A TEST%' THEN 3
        ELSE 4
    END,
descriptions ASC

表模式:

characters (t TEXT,s TEXT,jy TEXT,descriptions TEXT)
words (t TEXT,s TEXT,jy TEXT,descriptions TEXT)

Answer 1

从单个表中选择记录时,可以使用这些记录中的任何内容进行排序.

但是,当您使用UNION组合多个查询时,将对整个结果进行排序,因此您必须使用结果中的某些列进行排序.在这种情况下,这意味着您必须将计算移动到查询本身:

SELECT t, s, jy, descriptions, CASE ... END AS ordernr FROM ...
UNION ALL
SELECT t, s, jy, descriptions, CASE ... END AS ordernr FROM ...
ORDER BY ordernr,
         descriptions