Oracle query to SQL query conversion issues

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SQL-Server-2014

Dear All, 

can someone please help to convert the following oracle query to sql specific please.. as i am really struggling with that ..

SELECT "SAMPLE"."ID_NUMERIC",   
         "SAMPLE"."BATCH_NO",   
         "SAMPLE"."STATUS",   
         "SAMPLE"."RECD_DATE",   
         "SAMPLE"."DATE_AUTHORISED",   
         "SAMPLE"."TEMPLATE_ID",   
         "SAMPLE"."RELEASE_DATE",
         "SAMPLE"."LOGIN_DATE",
         "SAMPLE"."DATE_COMPLETED",   

         TRUNC((((86400 * (DATE_COMPLETED-RECD_DATE))/60)/60)/24) AS VC_Days,
	 		TRUNC(((86400 * (DATE_COMPLETED-RECD_DATE))/60)/60) - (24 * (TRUNC((((86400 * (DATE_COMPLETED-RECD_DATE))/60)/60)/24))) AS VC_Hrs,
	 		TRUNC((86400 * (DATE_COMPLETED-RECD_DATE))/60) - (60 * (TRUNC(((86400 * (DATE_COMPLETED-RECD_DATE))/60)/60))) AS VC_Min,
	 		TRUNC(86400 * (DATE_COMPLETED-RECD_DATE)) - (60 * (TRUNC((86400 * (DATE_COMPLETED-RECD_DATE))/60))) AS VC_Sec,
         
         TRUNC((((86400 * (RELEASE_DATE-RECD_DATE))/60)/60)/24) AS VR_Days,
	 		TRUNC(((86400 * (RELEASE_DATE-RECD_DATE))/60)/60) - (24 * (TRUNC((((86400 * (RELEASE_DATE-RECD_DATE))/60)/60)/24))) AS VR_Hrs,
	 		TRUNC((86400 * (RELEASE_DATE-RECD_DATE))/60) - (60 * (TRUNC(((86400 * (RELEASE_DATE-RECD_DATE))/60)/60))) AS VR_Min,
	 		TRUNC(86400 * (RELEASE_DATE-RECD_DATE)) - (60 * (TRUNC((86400 * (RELEASE_DATE-RECD_DATE))/60))) AS VR_Sec,

	 		TRUNC((((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60)/60)/24) AS CA_Days,
	 		TRUNC(((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60)/60) - (24 * (TRUNC((((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60)/60)/24))) AS CA_Hrs,
	 		TRUNC((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60) - (60 * (TRUNC(((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60)/60))) AS CA_Min,
	 		TRUNC(86400 * (DATE_AUTHORISED-DATE_COMPLETED)) - (60 * (TRUNC((86400 * (DATE_AUTHORISED-DATE_COMPLETED))/60))) AS CA_Sec,

	 		TRUNC((((86400 * (DATE_AUTHORISED-RECD_DATE))/60)/60)/24) AS VA_Days,
	 		TRUNC(((86400 * (DATE_AUTHORISED-RECD_DATE))/60)/60) - (24 * (TRUNC((((86400 * (DATE_AUTHORISED-RECD_DATE))/60)/60)/24))) AS VA_Hrs,
	 		TRUNC((86400 * (DATE_AUTHORISED-RECD_DATE))/60) - (60 * (TRUNC(((86400 * (DATE_AUTHORISED-RECD_DATE))/60)/60))) AS VA_Min,
	 		TRUNC(86400 * (DATE_AUTHORISED-RECD_DATE)) - (60 * (TRUNC((86400 * (DATE_AUTHORISED-RECD_DATE))/60))) AS VA_Sec

    FROM "SAMPLE"  
  
   
MAzeem

What I have tried:

not sure how to convert that to sql one

Posted 23-Feb-19 4:00am

Mohammad Azeem

Updated 24-Feb-19 23:47pm

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CHill60 · Answer 1 · 2019-02-24T23:47:00

First understand what VC_Days, VC_Hrs, VC_Min, VC_Secons are and get rid of those ridiculous calculations.

It appears that you are trying to express some dates as days, hours, minutes and seconds by truncating a value (note that 86400 = 60 * 60 * 24 - i.e. the number of seconds in a day)

Without seeing some sample data and the actual results I'm not going to go into great depth but the SQL function you probably need is DATEPART (Transact-SQL) - SQL Server | Microsoft Docs[^]
At a push you might want to look at DATEDIFF (Transact-SQL) - SQL Server | Microsoft Docs[^]

To prove it first you could convert the Oracle query and compare results - there is also DatePart[^] and DATEDIFF[^] in Oracle

Gerry Schmitz · Answer 2 · 2019-02-23T06:42:00

Solution 1

Start by creating a FUNCTION for all those duplicate calculations.

Note the constants and variables (parameters).

Posted 23-Feb-19 6:42am

Gerry Schmitz