Writing To A Relationship Based Table?
Feb 15, 2010
I think I'm just after advice on best practice with this! I have a database which has 2 tables. The first table has ID, Name, Address and the second table has ID and JobType. Table 02 can list multiple types of JobType so we could have
Table01:
1. D Smith. Address01
2. S.Jones. Address02
Table02
1. Accounts
1. Sales Ledger
1. Chartered Accountant
2. IT
2. Web Design
2. Graphic Design
2. 1st line support
A join gets them together and all works perfectly.However, the content will be updated when some one fills in a web form. Do get the form to send results to both tables, I assume I have to open the database twice or can I open it once and open each table one at a time? I know I could practice this and not ask the question but I am interested to know what is the most efficient way. I would also need to know what ID to use. So when I populate Table02 it uses the correct ID from Table01. At the moment Table01 ID field is incremented automatically. Would you suggest I always assign the ID myself, or would I need to query the database, find out what ID number is currently in use and then increment it by 1 and assign the new number to an ID variable which then populates the Table's Field? In which case, am I opening the database again or trying to perform all 2/3 stages in one go?
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[PO_Currency]
[VATpercent]
[CostCode]
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[PO_Date]
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[FromAccess]
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[ProjectID]
[PO_No]
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[ContractNo]
[ContractDate]
[ContractValue_woVAT]
[ContractCurrency]
[SupplierID]
[ContractDescription]
[ContractType]
[LinkToTemplatefile_DOC]
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[SignBySupplier]
[SignByMercury]
[CollectionBySupplier]
[LinkToPDFcopy]
[ArchivedByMercury]
[UpdatedBy]
[Retention]
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This is my table stucture...
This is first table...
ItemNo refno Process Name Qty
001 1 A John 50
001 2 A Jon 150
002 3 B
Kalis 100
003 4 A
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Second Table
ItemNo Newrefno Process Name Qty
001 001 ZZ peter 50
001 001/a ZkZ Joe 70
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001 A John 200 001/a ZZ ZkZ peter joe 50 70
002 B
Kalis 100 002 Ab Null Ray Null 100 Null
003 A
Bob 300 null null null null null null null
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up to this 001 A John 200 based on first table sum...
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