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Convert KQL query to SQL

Problem statement- Check event time stamp is exist in another table.
eg In sql we can user "between" and "and"

SELECT   Evnt_GUID,Transactiontimestamp,* from TestTrasncstion (NOLOCK),  

(

SELECT  star.GlobalID Evnt_GUID, star.TimeGenerated StartTime, sto.TimeGenerated StopTime from

(SELECT GlobalID, SpecialEventName_s, TimeGenerated from JobsEvents (NOLOCK) where SpecialEventName_s='Job Stopped' and SpecialEventDescription_s like '%GUID%' ) sto,

(SELECT GlobalID, SpecialEventName_s, TimeGenerated from JobsEvents (NOLOCK) where SpecialEventName_s='Job Started' and SpecialEventDescription_s like '%GUID%' ) star

WHERE sto.GlobalID=star.GlobalID

) tab

WHERE Transactiontimestamp BETWEEN tab.StartTime and tab.StopTime ORDER BY 2


What I have tried:

Tried summarize operator in KQL but no luck.
Posted
Updated 6-Nov-22 3:31am
v2
Comments
Maciej Los 30-Mar-21 5:00am    
Your sql query is very poor! Do you know what a join statement is for?
Mangesh9692 30-Mar-21 5:04am    
Yes I know but join is not usefull, and my concern is related to KQL(Kusto query language)
Maciej Los 30-Mar-21 5:47am    
No! Your first issue is to create proper sql query, then - the second - to write corresponding kql query.
Mangesh9692 30-Mar-21 6:28am    
OK let me give me my problem statement so u might be understand what I am trying to write

I have one table in Azure data explorer log analytics work space where I am logging my all transaction with their timestamp with type=transaction with different guid for each log, in the same table I am logging my background job start and stop against same guid(same guid for single cycle ie start and stop event) with their respective time stamp with type=event. Now I want find a record from this table with type=transaction those are falling in Job start and stop event timestamp .Thanks
Maciej Los 30-Mar-21 6:48am    
Try this:
SELECT tt.Evnt_GUID, tt.Transactiontimestamp, je.*
FROM TestTrasncstion tt(NOLOCK)
	LEFT JOIN 
	(
		SELECT  Evnt_GUID
		, StartTime = MIN(CASE WHEN SpecialEventName_s='Job Started' THEN TimeGenerated ELSE NULL END)
		, StopTime = MAX(CASE WHEN SpecialEventName_s='Job Stopped' THEN TimeGenerated ELSE NULL END)
		FROM JobsEvents
		GROUP BY Evnt_GUID
		WHERE SpecialEventDescription_s like '%GUID%' 
	) je (NOLOCK) ON tt.Evnt_GUID = je.Evnt_GUID AND tt.Transactiontimestamp BETWEEN je.StartTime and je.StopTime
ORDER BY 2

First of all, please read this: Visual Representation of SQL Joins[^]

I'd try this sql query:
SQL
SELECT tt.Evnt_GUID, tt.Transactiontimestamp, je.*
FROM TestTrasncstion tt(NOLOCK)
	LEFT JOIN 
	(
		SELECT  Evnt_GUID
		, StartTime = MIN(CASE WHEN SpecialEventName_s='Job Started' THEN TimeGenerated ELSE NULL END)
		, StopTime = MAX(CASE WHEN SpecialEventName_s='Job Stopped' THEN TimeGenerated ELSE NULL END)
		FROM JobsEvents
		GROUP BY Evnt_GUID
		WHERE SpecialEventDescription_s like '%GUID%' 
	) je (NOLOCK) ON tt.Evnt_GUID = je.Evnt_GUID AND tt.Transactiontimestamp BETWEEN je.StartTime and je.StopTime
ORDER BY 2


Then you should be able to convert it into kql.


For further details, please see:
Joins (SQL Server) - SQL Server | Microsoft Docs[^]
CASE (Transact-SQL) - SQL Server | Microsoft Docs[^]
MIN (Transact-SQL) - SQL Server | Microsoft Docs[^]
MAX (Transact-SQL) - SQL Server | Microsoft Docs[^]
GROUP BY (Transact-SQL) - SQL Server | Microsoft Docs[^]
join operator - Azure Data Explorer | Microsoft Docs[^]
 
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Comments
Mangesh9692 14-Apr-21 23:50pm    
I have tried this but no luck. Could you please help me on this




let test=(TestTransctions
|join kind = inner
(TestTransctions)
on $left.GlobalID == $right.GlobalID
| where EventTimeStamp_t > ago(totimespan((TimeGenerated))) and type='event'
| summarize (ets1, ts1) = arg_min (EventTimeStamp_t,SpecialEventName_s), (ets2,ts2) = arg_max(EventTimeStamp_t1, SpecialEventName_s1) by GlobalID
| project ets1, ts1, ets2, ts2, ets3=ets2 - ets1,GlobalID
|project-rename JobStarted=ets1,JobStopped=ets2
|project-keep JobStarted,JobStopped,GlobalID);
let test2=(TestTransctions| where IsTransactionAdhoc_b=='false');
test2
|join kind=leftouter
(test)
on $left.GlobalID == $right.GlobalID
|where EventTimeStamp_t between (todatetime(JobStopped)..todatetime(JobStarted))
Maciej Los 15-Apr-21 3:32am    
I have never used KQL. So, i can't help you. Please, take a look here: SQL to Kusto query translation - Azure Data Explorer | Microsoft Docs[^]
You can use Mostly Harmless Sql Translator: Json Kusto Pandas[^] to translate your sql into kusto/KQL, there is a cookbook for simple sql statements. Good luck! ^_^
 
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v4

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