Joining Tables - but data not always in all tables

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Joining Tables - but data not always in all tables

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colinw
Starting Member

8 Posts

Posted - 2007-08-18 : 05:06:53

I have created 3 views, which I then want to join to produce an overall result. The first view returns customer details, along with payment information. The next two views return values only when the customer has purchased extras outside our standard product i.e. if there is no purchase of an extra, then nothing is written to the extra's table. When I join the views together they only return values where data has been matched in all 3 views i.e. extra's have been purchased. Any data that did not match in all 3 view (i.e. no extra's purchased) is either ignored or dropped from the results. So I need my script to return all values even if no data exists in the two extra views.

My scripts are as follows:
Main View
SELECT
CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID,
CUSTOMER_POLICY_DETAILS.HISTORY_ID,
CUSTOMER_POLICY_DETAILS.AUTHORISATIONUSER,
CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE,
ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID,
CUSTOMER_INSURED_PARTY.SURNAME,
SYSTEM_INSURER.INSURER_DEBUG,
SYSTEM_SCHEME_NAME.SCHEMENAME,
CUSTOMER_POLICY_DETAILS.POLICYNUMBER,
--TotalPayable
IsNull(SUM(CASE LIST_TRAN_BREAKDOWN_TYPE.IncludeInTotal
WHEN 1 THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT
ELSE 0
END), 0) AS TotalPayable,
--NetPremium
IsNull(SUM(CASE ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID
WHEN 'NET' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT
ELSE 0
END), 0) AS NetPremium,
--IPT
IsNull(SUM(CASE
WHEN SubString(ACCOUNTS_TRAN_BREAKDOWN.Premium_Section_ID, 1, 3) = 'TAX' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT
ELSE 0
END), 0) AS IPT,
--Fee
IsNull(SUM(CASE ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID
WHEN 'FEE' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT
ELSE 0
END), 0) AS Fee,
--TotalCommission
IsNull(SUM(CASE
WHEN SubString(ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID, 4, 4) = 'COMM' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT
ELSE 0
END), 0) AS TotalCommission

FROM
ACCOUNTS_CLIENT_TRAN_LINK
INNER JOIN ACCOUNTS_TRANSACTION
ON ACCOUNTS_CLIENT_TRAN_LINK.TRANSACTION_ID = ACCOUNTS_TRANSACTION.TRANSACTION_ID
INNER JOIN ACCOUNTS_TRAN_BREAKDOWN
ON ACCOUNTS_TRANSACTION.TRANSACTION_ID = ACCOUNTS_TRAN_BREAKDOWN.TRANSACTION_ID
INNER JOIN LIST_TRAN_BREAKDOWN_TYPE
ON ACCOUNTS_TRAN_BREAKDOWN.TRAN_BREAKDOWN_TYPE_ID = LIST_TRAN_BREAKDOWN_TYPE.TRAN_BREAKDOWN_TYPE_ID
INNER JOIN CUSTOMER_POLICY_DETAILS
ON CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID = ACCOUNTS_CLIENT_TRAN_LINK.POLICY_DETAILS_ID AND
CUSTOMER_POLICY_DETAILS.HISTORY_ID = ACCOUNTS_CLIENT_TRAN_LINK.POLICY_DETAILS_HISTORY_ID
INNER JOIN SYSTEM_INSURER
ON CUSTOMER_POLICY_DETAILS.INSURER_ID = SYSTEM_INSURER.INSURER_ID
INNER JOIN SYSTEM_SCHEME_NAME
ON CUSTOMER_POLICY_DETAILS.SCHEMETABLE_ID = SYSTEM_SCHEME_NAME.SCHEMETABLE_ID
INNER JOIN CUSTOMER_INSURED_PARTY
ON ACCOUNTS_CLIENT_TRAN_LINK.INSURED_PARTY_HISTORY_ID = CUSTOMER_INSURED_PARTY.HISTORY_ID AND
ACCOUNTS_CLIENT_TRAN_LINK.INSURED_PARTY_ID = CUSTOMER_INSURED_PARTY.INSURED_PARTY_ID
WHERE
CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE = '2007-08-17' AND
ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID <> 'PAY'

GROUP BY
CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID,
CUSTOMER_POLICY_DETAILS.HISTORY_ID,
CUSTOMER_POLICY_DETAILS.AUTHORISATIONUSER,
CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE,
ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID,
CUSTOMER_INSURED_PARTY.SURNAME,
SYSTEM_INSURER.INSURER_DEBUG,
SYSTEM_SCHEME_NAME.SCHEMENAME,
ACCOUNTS_TRANSACTION.Transaction_ID,
CUSTOMER_POLICY_DETAILS.POLICYNUMBER

Add on View 1
CREATE VIEW TOPCARDPA AS
select policy_details_id, History_id, Selected from customer_addon where product_addon_id = 'TRPCAE01'

Add on View 2
CREATE VIEW TOPCARDRESC AS
select policy_details_id, History_id, Selected from customer_addon where product_addon_id = 'HICRESC01'

Join Result Script
SELECT
TOPCARD.AUTHORISATIONUSER,
TOPCARD.AUTHORISATIONDATE,
TOPCARD.TRANSACTION_CODE_ID,
TOPCARD.SURNAME,
TOPCARD.INSURER_DEBUG,
TOPCARD.SCHEMENAME,
TOPCARD.POLICYNUMBER,
TOPCARD.TotalPayable,
TOPCARD.NetPremium,
TOPCARD.IPT,
TOPCARD.Fee,
TOPCARD.TotalCommission,
TOPCARDPA.SELECTED,
TOPCARDRESC.SELECTED
FROM
dbo.TOPCARD TOPCARD
INNER JOIN dbo.TOPCARDPA TOPCARDPA
ON TOPCARD.POLICY_DETAILS_ID = TOPCARDPA.POLICY_DETAILS_ID AND
TOPCARD.HISTORY_ID = TOPCARDPA.HISTORY_ID
INNER JOIN dbo.TOPCARDRESC TOPCARDRESC
ON TOPCARD.POLICY_DETAILS_ID = TOPCARDRESC.POLICY_DETAILS_ID
AND
TOPCARD.HISTORY_ID = TOPCARDRESC.HISTORY_ID

I have included all the scripts I have used, as others may find them useful, in addition to anyone that is able to provide me with some assistance. Thanks in advance for for the help.

Zoroaster
Aged Yak Warrior

702 Posts

Posted - 2007-08-18 : 07:19:04

I believe what you need is to use a left outer join in your result script in place of the inner join, this will return all results from the left most table regardless of values in the right tables.

colinw
Starting Member

8 Posts

Posted - 2007-08-20 : 03:28:24

Absolutely perfect. Being self taught perhaps I should have read the whole chapter on Joins!! Thanks for your help, it's greatly appreciated.

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