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Question

I have 2 tables.

Table 1 = branch containing

branch_id branch_name

Table 2 = sales_data containing

sales_id sales_date sales_branch sales_profit

I need away of showing the total daily sales and total daily profit for each branch. I know how to bring back the result for a given week etc I am just really struggling on how to pull back the data.

I also need all the branches to be shown at all time and if they haven't sold anything to display a 0.

I have put together a quick image ( http://i37.photobucket.com/albums/e71/dannyflap/screen_shot.jpg ) of how I would like the finished. This is really driving me nuts :(

UPDATE

select sales_branch, WEEKDAY(sales_date), COUNT(sales_profit), SUM(sales_profit)
FROM sales_date
GROUP BY sales_branch, WEEKDAY(sales_date)

This then brings back the following example. Figures are made up.

sales_branch, day, units, profit:

| branch1 | 0 (as day) | 16 | 439 |

| branch1 | 1 (as day) | 12 | 651 |

| branch1 | 2 (as day) | 22 | 312 |

| branch1 | 3 (as day) | 61 | 614 |

| branch1 | 4 (as day) | 12 | 541 |

| branch1 | 5 (as day) | 24 | 102 |

| branch1 | 6 (as day) | 21 | 145 |

Answer 1

You're going to need a foreign key in sales_data that maps to branch.

assuming sales_branch is something different than branch_name or branch_id, sales_data should contain:

sales_id sales_date sales_branch branch_id sales_profit

Also - you should post your code for getting back the result for a given week and we can help you build on that rather than give you the entire answer.

EDIT Ok with modifying your sales_data table to have a foreign key branch_id to the branch table, this query should get you closer to what you're looking for.

SELECT b.branch_name, WEEKDAY(s.sales_date), COUNT(s.sales_profit), SUM(s.sales_profit)
FROM branch b
LEFT OUTER JOIN sales_data on s.branch_id = b.branch_id
GROUP BY b.branch_id, WEEKDAY(s.sales_date)

Answer 2

I guess you would have to do an outer join on table 1's branch_id and table 2's sales_branch and loop through the result to produce the table. With an outer join those branches who haven't sold anything will get a NULL , I think.

Is it the table generating you're having problem with? I don't think it's wise to do some spectacular SQL for this problem. My two cents.