Programming Rookie - Limiting From 2 Tables - mysql

Question

I am attempting to determine "First Time Givers", people who gave in FY2015 but never given before. I also need to ignore users who gave for a certain reason (appealCode).
Below is example of some of the fields my tables have and what information needs limited.
**FundLedger**
Account ID EntryAmount GiftReceivedDt AppealCode
1000 $500 7/1/2014 1
1000 $500 2/2/2002 2
2000 $25 8/1/2014 1
2000 $25 9/1/2014 1
3000 $100 10/1/2014 1
4000 $1,000 11/1/2014 2
**ConstituentTotals**
ConstituentID FirstTransactionDate LastTransactionDate CashAmount
1000 2/2/2002 1/1/2014 $1,000
2000 3/1/2014 4/1/2014 $50
3000 5/1/2014 5/1/2014 $100
4000 11/1/2014 11/1/2014 $1,000
What I need is to find the number of constituents who gave between 6/1/2014 and today, who have never given before, and the gift was not given to AppealCode 2.
So the number I need from the sample information is '2'.
**Information Needed**
ConstituentID CashAmount FirstTransactionDate LastTransactionDate AppealCode
2000 $50 3/1/2014 4/1/2014 1
3000 $100 5/1/2014 5/1/2014 1
As of now I can either get the number of people who gave if I ignore the AppealCode, or I can get the AppealCode limited but I get ALL transactions of the giver.
Currently at this stage, it pulls the count 77,000 times, one for each entry in the Ledger.
'SELECT
Number_Of_New_Donors = ( SELECT COUNT(a.ConstituentID)
From dbo.FundConstituentTotals a
RIGHT JOIN dbo.FundLedger b
ON a.ConstituentID = b.AccountID
WHERE (a.FirstTransactionDT between '6/1/2014' and '5/31/2015'
AND a.CashAmount > '0'
AND a.GivingYear = '2015'
AND A.GivingYear !< '2015')
AND (b.GiftReceivedDt between '6/1/2014' and '5/31/2015'
AND b.RecordTypeID != '0'
AND b.RecordTypeID != '-1'
AND b.RecordTypeID != '2'))
FROM FundConstituentTotals'
Suggested Response Results:
ConstituentID FundConstituentTotalID ConstituentID GivingYear PledgeAmount CashAmount NonCashAmount FirstTrans
49427 77314 49427 2015 0 25 0 1/13/2015
49427 77314 49427 2015 0 25 0 1/13/2015
49427 77314 49427 2015 0 25 0 1/13/2015
49427 77314 49427 2015 0 25 0 1/13/2015
Just found that the data is innacurate, FirstTransactionDate does not provide the date of the first transaction, just the date the transaction begin being posted to the ledger (SOMEONE MESSED THIS UP IN THE PAST). I will have to use GiftReceivedDate between DATES, and find a way to remove people if they have dates prior to 2014.

Answer 1

SELECT Number_Of_New_Donors = ( SELECT COUNT(a.ConstituentID)
From dbo.FundConstituentTotals a
LEFT JOIN dbo.FundLedger b
ON a.ConstituentID = b.AccountID
AND a.LastTransactionDate = b.GiftReceivedDt
WHERE a.FirstTransactionDT between '2015-01-01' and '2015-05-31'
AND b.AppealCode != 2)
This seems to do what you want. FirstTransaction is this year (since it is the first, there can't be previous ones), and appeal code isn't 2. What is the rest of your code trying to do?