Solved

COUNT the number of enquiries for the past 6 MONTHS

Posted on 2008-09-30
14
161 Views
Last Modified: 2011-10-19
I want to return a table (to use as a dataview) which has the name of the past 6 months (each month with the count of no. of inquiries) from today's date and a count on the no. of inquiries in that period

so at the moment I have a table which has a date columns and an inquiry column
0
Comment
Question by:manivineet
  • 6
  • 6
  • 2
14 Comments
 
LVL 60

Expert Comment

by:chapmandew
ID: 22610604
post your table structure.
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22610632
Something like this should work:
SELECT Month(datecol) AS InquiryMonth
, Count(inquiry) AS InquiryCount
FROM inquiries
WHERE datecol >= DateAdd(mm, -6, DateAdd(dd, -day(getdate())+1, DateDiff(dd, 0, getdate())))
GROUP BY Month(datecol)
ORDER BY 1

Open in new window

0
 

Author Comment

by:manivineet
ID: 22610643
here is my table structure
clip-image002.jpg
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 

Author Comment

by:manivineet
ID: 22610665
for mwvisa1:

the current solution looks fine, but it returns data for past three months and not 6 months, how can we modify it?

pardon my ignorance, for i'am a complete beginner
0
 
LVL 59

Accepted Solution

by:
Kevin Cross earned 250 total points
ID: 22610669
Or in the honor of chapmandew, you can use a common table expression like this:
;WITH inquiryCTE AS (
    SELECT DateDiff(mm, datecol, getdate()) AS MonthsInThePast
    , Month(datecol) AS InquiryMonth
    , Count(inquiry) AS InquiryCount
    FROM inquiries
    GROUP BY DateDiff(mm, datecol, getdate()), Month(datecol)
)
SELECT *
FROM inquiryCTE
WHERE MonthsInThePast <= 6

Open in new window

0
 

Author Comment

by:manivineet
ID: 22610673
actually ignore that please... for my database doesnt have entry before july (7)
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22610679
>>the current solution looks fine, but it returns data for past three months and not 6 months, how can we modify it?

Do you have data in the inquiry table from 6 months ago?

This query will only show month if it has a count.  If it doesn't it will not show up.  For that, you will have to join to the report through UNION or something to that effect a query with all months.
0
 

Author Comment

by:manivineet
ID: 22610685
can we also return the YEAR as another column as well like

year month inquires
2008   9      243
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22610699
In either query you just add this to the select and group by clauses Year(datecol) where datecol is the name of your actual date column.
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22610721
If I am reading the image correctly, this should be your query:
SELECT Year(dttSubmitted) AS EnquiryYear
, Month(dttSubmitted) AS EnquiryMonth
, Count(*) AS EnquiryCount
FROM tblEnquiry
WHERE dttSubmitted >= DateAdd(mm, -6, DateAdd(dd, -day(getdate())+1, DateDiff(dd, 0, getdate())))
GROUP BY Year(dttSubmitted), Month(dttSubmitted)
ORDER BY 1 DESC, 2 DESC

Open in new window

0
 

Author Closing Comment

by:manivineet
ID: 31501806
thank you so much mwvisa1
0
 

Author Comment

by:manivineet
ID: 22610826
just one more addition to it... even if the ENQUIRY COUNT is 0 , still the table should show year and month
0
 
LVL 60

Expert Comment

by:chapmandew
ID: 22610896
Do I have you hooked on CTEs yet?  ;)
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22610937
I think so!

@manivineet, as suggested earlier, you will need to right join to a table holding all days OR months OR use a UNION to all days OR months.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
SELECT query on two levels (detail and summary) 13 48
SSRS 2013 - Overlapping reports 2 19
SQL Querying data from 3 tables, all with 1 common column 4 34
Sql Server group by 10 26
In this article I will describe the Backup & Restore method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
The Delta outage: 650 cancelled flights, more than 1200 delayed flights, thousands of frustrated customers, tens of millions of dollars in damages – plus untold reputational damage to one of the world’s most trusted airlines. All due to a catastroph…
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 to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

785 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