数组搜索和计数-Scala

Question

我正在尝试在包装好的数组中查找元素数。以下是方案。

数组不需要排序。

它与for循环一起使用，效率极低。有更好的方法吗？

日期位于包装的数组中（未排序）-用户将指定开始日期和结束日期，并且必须计算它们之间的元素数。

select xe.TraceFileName
     , xe.TraceEvent
     , xe.EventDataXML.value('(/event/data[@name="EventSubclass"]/value)[1]', 'int')               as EventSubclass
     , xe.EventDataXML.value('(/event/data[@name="ServerName"]/value)[1]', 'varchar(50)')          as ServerName
     , xe.EventDataXML.value('(/event/data[@name="DatabaseName"]/value)[1]', 'varchar(50)')        as DatabaseName
     , xe.EventDataXML.value('(/event/data[@name="NTDomainName"]/value)[1]', 'varchar(50)')        as NTDomainName
     , xe.EventDataXML.value('(/event/data[@name="NTUserName"]/value)[1]', 'varchar(50)')          as NTUserName
     , xe.EventDataXML.value('(/event/data[@name="NTCanonicalUserName"]/value)[1]', 'varchar(50)') as NTCanonicalUserName
     , xe.EventDataXML.value('(/event/data[@name="ConnectionID"]/value)[1]', 'int')                as ConnectionID
     , xe.EventDataXML.value('(/event/data[@name="StartTime"]/value)[1]', 'datetime')              as StartTime
     , xe.EventDataXML.value('(/event/data[@name="EndTime"]/value)[1]', 'datetime')                as EndTime
     , xe.EventDataXML.value('(/event/data[@name="Duration"]/value)[1]', 'bigint')                 as Duration
     , xe.EventDataXML.value('(/event/data[@name="TextData"]/value)[1]', 'varchar(max)')           as TextData
into #List
from
(
    select [file_name]              as TraceFileName
         , object_name              as TraceEvent
         , convert(xml, event_data) as EventDataXML
    from sys.fn_xe_file_target_read_file('path\filename*.xel', null, null, null)
) xe;

代码效率不高-并希望针对性能进行优化。