>Hi I am posting this again as I hadn't got a response, as I had posted on a Saturday maybe it was a wrong day <g>.
>
>Hi all
>
>I have this requirement for an inventory system and the following is the rough master data structure I have in mind:
>
>Items Master where iParentItemsID is for maintaining a tree structure of item heirarchcy. Item in say nos., having no secondary units, can be purchased or sold on say kgs. thus the yItemWeight
>iID
>iParentItemsID
>cDesc
>yOpStock
>yItemWeight
>Secondary Units Master to maintain breakup of the Items Opening Stock in say for eg. packs; 10gms Pack, 50gms Pack, 1kg Pack. cConversion is / or * to convert it back to the Main Items Stock
>iID
>iItemMastersID
>cSecondaryUnit
>yOpStock
>yConversionQty
>cConversion
>BOM Master this will maintain Bill of Material for each item. iItemID uses the Items Master above. cAddLess is required as in a production there is less of the actual BOM items but add of Scrap etc.
>iID
>iItemMastersID
>iItemID
>yQty
>cAddLess
>Now there is stil one requirement is Godown-wise stocks primary (which is a club of secondary units) and secondary units. This was still not clear how to implement as there are 2 places where there is a opening stock qty.
>
>In short I need:
>- Item Heirarchy

This should tell you "which item contains which other item", right? Since this is a many-to-many relationship, you will need a separate table, which you might call ItemComponents, or ItemComposition, or something similar.

Minimum fields:

Parent (an item)
Child (an item contained in Parent)
Quantity

>- Multiple Units qty.

Can't you convert to a single unit?

>- BOM

What does this TLA mean?

>- Godown-wise stock

Can you explain what this is about?