Generating Data Using Multiple Conditions

Hi,

I am attempting to explain my probelm again. Please read it:

I have 3 tables. CallDetail, Call and Request. The tables are populated in the following order: One row for CallDetail, One for Call and one for Request and so on.

I have to generate a UniqueNo - Per empid, Per StateNo, Per CityNo, Per CallType. The no will remain same for the same CallDetailID and ordered by the date created. However if the CallDetailId changes, the no. will increment based on the empid, Per StateNo, Per CityNo, Per CallType

For eg:

For Eg: ( Assume Call Detail id is changing for all the days)
Monday - 3 calls made for empid 1, state SA023, city 12 and call type 1 will generate a unique id 1 for all 3 calls
Tuesday - 2 calls made for empid 1, state SA023, city 12 and call type 1 will generate a unique id 2 for both calls
Wednesday - 3 calls made for emp id 1, state SA023, city 12 and call type 2 will generate a unique id 1 for 3 calls as the call type is different than the previous day for same employee
Thursday - 2 calls made for empid 2, state SA023, city 13 and call type 1 will generate unique id 1 for both the calls as combi of city and call type are different.

So the unique id has to be generated considering empid, state, city and call type, ordered by the EntryDt. EntryDt is needed because :
3 calls made for empid 1, state SA023, city 12 and call type 1 at 10/11/2007 10.00 AM will generate a unique id 1 for all 3 calls
2 calls made for empid 1, state SA023, city 12 and call type 1 at 10/11/2007 12.00 AM will generate a unique id 2 as the call was registered later.


Here is what I wrote with the help of a mod over here:




Code Block
DECLARE @Request TABLE(RequestID INT, CustomerName VARCHAR(30),
StateNo NVARCHAR(5), CityNo INT, CallID INT, UniqueNo INT)

INSERT @Request
SELECT '324234', 'Jack', 'SA023', 12, 111, Null UNION ALL
SELECT '223452', 'Tom', 'SA023', 12, 112, Null UNION ALL
SELECT '456456', 'Bobby', 'SA023', 12, 114, Null UNION ALL
SELECT '22322362', 'Guck', 'SA023', 12, 123, Null UNION ALL
SELECT '22654392', 'Luck', 'SA023', 12, 134, Null UNION ALL
SELECT '225652', 'Jim', 'SA023', 12, 143, Null UNION ALL
SELECT '126756', 'Jasm', 'SA023', 12, 145, Null UNION ALL
SELECT '786234', 'Chuck', 'SA023', 12, 154, Null UNION ALL
SELECT '66234', 'Mutuk', 'SA023', 12, 185, Null UNION ALL
SELECT '2232362', 'Buck', 'SA023', 12, 195, Null

DECLARE @Call TABLE(CallID INT, CallType INT, CallDetailID INT)
INSERT @Call
SELECT 111, 1, 12123 UNION ALL
SELECT 112, 1, 12123 UNION ALL
SELECT 114, 1, 12123 UNION ALL
SELECT 123, 2, 12123 UNION ALL
SELECT 134, 2, 12123 UNION ALL
SELECT 143, 1, 6532 UNION ALL
SELECT 145, 1, 6532 UNION ALL
SELECT 154, 1, 6532 UNION ALL
SELECT 185, 2, 6532 UNION ALL
SELECT 195, 3, 6532

DECLARE @CallDetail TABLE(CallDetailID INT, EmpID INT, EntryDt DateTime)
INSERT @CallDetail
SELECT 12123, 1, '11/5/2007 10:41:34 AM' UNION ALL
SELECT 6532, 1, '12/5/2007 12:12:34 PM'

-- Query written with help of a helpful person here
UPDATE r
SET r.UniqueNo = dt.CallGroup
FROM @Request r
JOIN @Call c
ON r.CallID = c.CallID
JOIN (SELECT
CallDetailID,
EntryDt,EmpID,
CallGroup = ROW_NUMBER() OVER (ORDER BY EntryDt )
FROM @CallDetail
) dt
ON c.CallDetailID = dt.CallDetailID
select * from @Request

OUTPUT IS
324234 Jack SA023 12 111 1
223452 Tom SA023 12 112 1
456456 Bobby SA023 12 114 1
22322362 Guck SA023 12 123 1
22654392 Luck SA023 12 134 1
225652 Jim SA023 12 143 2
126756 Jasm SA023 12 145 2
786234 Chuck SA023 12 154 2
66234 Mutuk SA023 12 185 2
2232362 Buck SA023 12 195 2

Where as it should be

324234 Jack SA023 12 111 1
223452 Tom SA023 12 112 1
456456 Bobby SA023 12 114 1
22322362 Guck SA023 12 123 1
22654392 Luck SA023 12 134 1
225652 Jim SA023 12 143 2
126756 Jasm SA023 12 145 2
786234 Chuck SA023 12 154 2
66234 Mutuk SA023 12 185 2
2232362 Buck SA023 12 195 1



as the call for Buck is of calltype 3 which was not done earlier. So the no starts from 1.

Also how to add the paritioning by empid, StateNo, Per CityNo, Per CallType and yet maintain the same unique no for the same calldetailid.
Eg: CallGroup = ROW_NUMBER() OVER (PARTITION BY empid, state, city, calltype ORDER BY EntryDt )

thanks for any help.