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What Oracle Database Feature to use

802562Oct 26 2010 — edited Oct 26 2010
What Oracle Database Feature to use to make automatic update of table based on child tables insert or update

For example

Table Invoice
1. Invoice No
2. Invoice Date
3. Desc
4. Total Price <-------------------------------|
Table Item_Sold |
1. Item sold ID |
2. Item selling price <---------------------------| sum of all records whith invoice no = to the parent table.
3. Inventory ID (FK to Inventory table)
4. Invoice no (FK to Invoice table)

The Invoice has one to many relationship with Item_sold, and the Total Price should be sum of Item selling price.

Any trigger a like or other cool Oracle features that can address this design?

Thank you.

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Post Details
Locked due to inactivity on Nov 23 2010
Added on Oct 26 2010