Question

我有一个包含TIMESTAMP和REMAINING列的表格。我正在尝试按降序排序TIMESTAMP，但让REMAINING列以非常具体的顺序输出结果：

AgentStateEvent
TerminalConnectionCreated
无论如何

然而它是这样的结果（从我能说的相反顺序）：

TIMESTAMP|| REMAINING
%[TIMESTAMP=1441737006102]||[EVENT=CallControlTerminalConnectionHeld]
%[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated][callID=11411]
%[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
%[TIMESTAMP=1441737006102]||[EVENT=CallControlTerminalConnectionHeld]
%[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated][callID=11411]
%[TIMESTAMP=1441737006102]||[EVENT=CallControlTerminalConnectionHeld]
%[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated]
%[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
%[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]

应该是：

   %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
 %[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated][callID=11411]
 %[TIMESTAMP=1441737006102]||[EVENT=CallControlTerminalConnectionHeld]

等...

我目前拥有的SQL如下：

select *
from [TIMESTAMP_ORGANISER].[dbo].[TEST_DB]
order by 
    timestamp,
    case 
       when remaining like '%[EVENT=agentStateEvent]%' then 1
       when remaining like '%[EVENT=TerminalConnectionCreated]%' then 2 
       else 3
    end;

我试过像这样反过来做SQL：

select *
from [TIMESTAMP_ORGANISER].[dbo].[TEST_DB]
order by 
    timestamp,
    case 
       when remaining like '%[EVENT=agentStateEvent]%' then 3
       when remaining like '%[EVENT=TerminalConnectionCreated]%' then 2 
       else 1
    end;

但这没有区别。我做错了什么？

SELECT * 
FROM [TIMESTAMP_ORGANISER].[dbo].[TEST_DB]
ORDER BY 
    timestamp, 
    CASE 
       WHEN remaining LIKE '%agentStateEvent%' THEN -3
       WHEN remaining LIKE '%TerminalConnectionCreated%' THEN -2
       ELSE -1 
    END

不幸的是，结果会像这样结束：

 %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
 %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
 %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
 %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
 %[TIMESTAMP=1441737006102]||[EVENT=agentStateEvent]
%[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated]%
[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated]%
[TIMESTAMP=1441737006102]||[EVENT=TerminalConnectionCreated]

Answer 1

您可以将所有CASE排名乘以-1以获得所需的订单：

SELECT * FROM [TIMESTAMP_ORGANISER].[dbo].[TEST_DB]
ORDER BY timestamp, CASE WHEN remaining LIKE '%agentStateEvent%' THEN -1
                         WHEN remaining LIKE '%TerminalConnectionCreated%' THEN -2
                    ELSE -3 END

我还更改了您的LIKE匹配条件，因为根据您的搜索结果，即使原始查询中的内容出现故障也是您不想要的。

Answer 2

Order by remaining desc, case when remaining like '%[EVENT=agentStateEvent]%' then 1
          when remaining like '%[EVENT=TerminalConnectionCreated]%' then 2 
          else 3
     end asc;

SQL Query以相反的顺序生成结果

2 个答案: