Re: Using count on a join, group by required?

If you showed your work, you might get decent hints if not solutions.

On 12/14/2010 09:23 AM, Rob Sargent wrote:
> Shouldn't you be doing your own homework?
> 
> emaratiyya wrote:
>> Hi,Please help me solving this problem. I appreciate..Thankyou.
>>
>> Create the following table and insert few arbitrary records. Product
>> (product_id, product_name, supplier_name, quantity, price_per_unit)
>> You are required to create PL/SQL package that achieves the following
>> functionalities:
>>
>> •    Obtaining the product supplier name by using the product_id
>> •    Changing the price_per_unit by using the product_id
>> •    When changing the price of the product, you have to have PL/SQL
>> code that
>> keeps the history of the prices. For this functionality you need to
>> create
>> audit table: product_audit(product_id, old_price, new_price,
>> date_of_change)
>> •    Updating the quantity by using the product_id
>> •    Get warning when the product level of stock (quantity) goes below
>> certain
>> threshold (e.g. 10)
>>
>>