Solved

Count, GroupBy and where SQL Statement, without GroupBy

Posted on 2007-03-28
7
321 Views
Last Modified: 2012-06-21
Hi all

I am having trouble in writing a SQL statement.  Actually don't know if it is possible.

What I am trying to do is count a number of records but group by 1 record but also have a date from which to start counting.

So, Table 1 = UserDetails
StaffID (Numeric,Unique Identifyer), DateStarted (DateTime)

Table 2 = DataWritten
RecordNumber (Numeric, Inique Identifyer), DateEntered (DateTime)

Table 3 = RecordsRead
RecorNumber (Numeric, Unique Identifyer), StaffID (Numeric), DateRead (DateTime)

So now, I want to
Count = RecordsRead.RecordNumber
GroupBy = RecordsRead.StaffID
Where RecordsRead.DateRead = UserDetails.DateStarted (But not GroupBy DateRead).

As stated earlier, not sure, if it is possible, but would make live a lot easier.

I will be displaying this on a web page ASP Classic if this helps.

Baker
0
Comment
Question by:Bakersville
  • 3
  • 3
7 Comments
 
LVL 28

Expert Comment

by:imran_fast
ID: 18807733
you mean this


select count(RecordsRead.RecordNumber),RecordsRead.StaffID
from RecordsRead
inner join UserDetails
on RecordsRead.DateRead = UserDetails.DateStarted
group by RecordsRead.StaffID
0
 
LVL 28

Expert Comment

by:imran_fast
ID: 18807737
or this
select count(RecordsRead.RecordNumber),RecordsRead.StaffID
from RecordsRead
inner join UserDetails
on RecordsRead.DateRead = UserDetails.DateStarted
and UserDetails.StaffID=RecordsRead.StaffID
group by RecordsRead.StaffID
0
 
LVL 11

Assisted Solution

by:MacNuttin
MacNuttin earned 100 total points
ID: 18807760
is RecorNumber a typo?
What does this give you?

select DateStarted,dw.RecordNumber,DateEntered,count(rr.RecordNumber) as NumCount,rr.StaffID,DateRead FROM RecordsRead rr left join UserDetails ud  on ud.StaffID = rr.StaffID join DataWritten dw on dw.RecordNumber = rr.recordnumber
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 1

Author Comment

by:Bakersville
ID: 18808300
Thank you both for your quick replies.  Yes RecorNumber is a typo.

I will give it a go and let you know how i get on.

Thank again
Baker
0
 
LVL 1

Author Comment

by:Bakersville
ID: 18809089
imran_fast, thanks again for this but on the Second option, it does count, but it counts the Records Read,RecordNumber not DataWritten.RecordNumber where > DataWritten.DateStarted.
I've tried to change it but my head hurts now.

MacNuttin, i've tried your but it comes up with a GroupBy clause error and once that fixed a where clause error.

Baker
0
 
LVL 28

Accepted Solution

by:
imran_fast earned 400 total points
ID: 18828103
You mean this

select count(DataWritten.RecordNumber),UserDetails.StaffID
from DataWritten
inner join UserDetails
on DataWritten.DateStarted < UserDetails.DateStarted
group by UserDetails.StaffID
0
 
LVL 1

Author Comment

by:Bakersville
ID: 18835019
Thank you imran_fast, works perfectly.
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How to share SSIS Package? 6 37
Show Results for Latest DateTime in a View 27 25
SQL view 2 27
Connection to multiple databases 13 19
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
This article shows gives you an overview on SQL Server 2016 row level security. You will also get to know the usages of row-level-security and how it works
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.
Viewers will learn how the fundamental information of how to create a table.

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question