We help IT Professionals succeed at work.
Get Started

getting duplicate records from tables

125 Views
Last Modified: 2016-10-07
Hi Experts
i am facing a complicated issues in a very important table, this table is big with about 1000 records

RecId              ID                EventDate      EventTime                              EventPlace      EventName      EventUserID      EventUserName
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
42696651      4437146       2016-07-26       2016-07-27 08:39:44.000      ENTRY GF1    Granted          00004449      A.Ameer                            
42697053      4438589      2016-07-26    2016-07-27 14:25:04.000      EXIT GF1        Granted          00004449      A.Ameer                            
42696253      4436414      2016-07-26       2016-07-27 06:49:33.000      ENTRY GF1    Granted          00009115      Jabber                          
42696692      4437291      2016-07-26    2016-07-27 09:14:20.000      EXIT GF1        Granted          00009115      Jabber                          
42696867      4438070      2016-07-26       2016-07-27 12:27:48.000      ENTRY GF3    Granted          00009115      Jabber
42696868      4438070      2016-07-26       2016-07-27 12:27:48.000      EXIT GF3        Granted          00009115      Jabber
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
as you can see each record have ENTRY and EXIT for the same EventUserName, and the same user can have a multiple ENTRY and multiple EXIT, but in some cases the ENTRY may not have an EXIT, for that i wrote an query to get me the odd number records
SELECT CAST(CONVERT(varchar, EventDate, 101)as datetime) EventDate,CONCAT(YEAR(EventDate),'-',
MONTH(EventDate),'-',DAY(EventDate)) as E2,EventUserId,EventUserName,count(*) as Records 
FROM [Attendance].[dbo].[HistFID] 
where eventdate='2016-07-26' 
group by EventDate,EventUserName,EventUserId 
having (count(*) %2) <> 0

Open in new window


but this is not enough, as i may got a positive number of records but with no exit or no entry, for example

RecId              ID                EventDate      EventTime                              EventPlace      EventName      EventUserID      EventUserName
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
42696651      4437146       2016-07-26       2016-07-27 08:39:44.000      ENTRY GF1    Granted          00004449      A.Ameer                            
42697053      4438589      2016-07-26    2016-07-27 14:25:04.000      EXIT GF1        Granted          00004449      A.Ameer                            
42696253      4436414      2016-07-26       2016-07-27 06:49:33.000      ENTRY GF1    Granted          00009115      Jabber                          
42696692      4437291      2016-07-26    2016-07-27 09:14:20.000      ENTRY GF1    Granted          00009115      Jabber                          
42696867      4438070      2016-07-26       2016-07-27 12:27:48.000      ENTRY GF3    Granted          00009115      Jabber
42696868      4438070      2016-07-26       2016-07-27 12:27:48.000      EXIT GF3        Granted          00009115      Jabber

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
as you can see in the record in bold text

any suggestion
Comment
Watch Question
Billing Engineer
CERTIFIED EXPERT
Most Valuable Expert 2014
Top Expert 2009
Commented:
This problem has been solved!
Unlock 3 Answers and 4 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE