Oracle SQL：每个错误代码的错误计数错误

Question

我正在尝试运行一个 SQL 查询以从数据库中找出每个错误代码的计数。我有两张桌子

1. sw_sms_events 存储发送的事务 ID 和短信。
2. sw_events 其中事务 ID 和错误原因，如果失败则存储，否则原因始终为“成功发送 TariffText”。

错误总数：- select count(*) from sw_sms_events where sms_text like '%Welkom in het buitenland%'

每个错误原因的错误总数：-

select distinct count(*) over (partition by b.reason) , b.reason 
from sw_sms_events a, sw_events b 
where a.transaction_id= b.transaction_id  
and a.sms_text like '%Welkom in het buitenland%' 
and b.reason !='Successfully Sent TariffText'  
order by (count(*) over (partition by b.reason)) desc

通常，这些查询会给出相同的结果，即单个错误计数的总和 = 错误总数。但在最坏的情况下，同一事务被多次重试，结果并不相同。即我们在表中有多个具有相同事务 ID 的行。

以下是最坏情况下的结果之一：

Name    24-07-2015
Total Number of SMSWelcome Sent 156788
Total Number of Error SMSWelcome    1738
Total Number of SMSWelcome Sent with null Tariffs   286



Error Reason    Error Count

Unknown error received :BEA-380000 , ErrorMessage : BSL-99999   1829
Backend system not available , ErrorMessage : BSL-50002 641
Remote Error    527

NativeQuery.executeQuery failed , ErrorMessage : BSL-11009  41
This service is available only for active products , ErrorMessage : BSL-15024   30

Unknown error received :BEA-382556 , ErrorMessage : BSL-99999   18

Customer information: Not retrieved. This action cannot continue without customer information. Please try later or contact your system administrator. , ErrorMessage : BSL-10004    13

OMS login failure: Problem in OMS UAMS login - Nested Exception/Error: java.net.ConnectException: Tried all: '1' addresses, but could not connect over HTTP to server: '195.233.102.177', port: '40123' ,   12

t3://195.233.102.171:30101: Bootstrap to: 195.233.102.171/195.233.102.171:30101' over: 't3' got an error or timed out , ErrorMessage : BSL-11000    5
getTariffsAndAddOns, status: Failure , ErrorCode : An internal error occured , ErrorMessage : BSL-14005 3

Authorization failed of dealer market restrictions , ErrorMessage : BSL-50005   2

com.amdocs.cih.exception.InvalidUsageException: The input parameter AssignedProductRef is invalid. , ErrorMessage : BSL-10004   1

我的问题是我如何修改当前的 sql，使得当我们遇到同一事务在表中多次出现的情况时，错误的总计数应始终等于单个错误计数的总和

Answer 1

我真的不明白您为什么要使用分析查询。更简单的group by 还不够吗？

select count(*), b.reason 
from sw_sms_events a, sw_events b 
where a.transaction_id= b.transaction_id  
and a.sms_text like '%Welkom in het buitenland%' 
and b.reason !='Successfully Sent TariffText'  
group by b.reason
order by count(*) desc

当您说我们在表中有多个具有相同事务 ID 的行时，您是指仅在 sw_events 表中还是在 sw_sms_events 和 sw_events 表中？

如果是这样，则会多次计算事件，因为您正在使用相同的 transaction_id 对所有原始数据进行笛卡尔积。您应该使用更严格的连接子句。

你也可以做一些（相当丑陋的）比如：

select count(distinct b.ROWID), b.reason 
from sw_sms_events a, sw_events b 
where a.transaction_id= b.transaction_id  
and a.sms_text like '%Welkom in het buitenland%' 
and b.reason !='Successfully Sent TariffText'  
group by b.reason
order by count(distinct b.ROWID) desc

确保每个事件只计算一次。

Answer 2

select distinct count(distinct b.ROWID) over (partition by b.reason) , b.reason 
from sw_sms_events a, sw_events b 
where a.transaction_id= b.transaction_id  
and a.sms_text like '%Welkom in het buitenland%' 
and b.reason !='Successfully Sent TariffText'  
order by (count(distinct b.ROWID) over (partition by b.reason)) desc