I'm new to SQL, and I keep running this code and it shows the Price, Amount, and Total Column. I only need to see the total column with the calculations in it.
SELECT
price,
amount,
price * amount AS total
FROM items;
How do I fix my code to only display the "total" column?
You are telling SQL to bring back all three based on your select statement.
Change it to as follows:
SELECT price * amount AS Total
FROM items;
Related
I need help writing the query, we have a table called SALES, which has 3 columns as below:
Column Names: sale_id, state, sale_amount_cents
I assume the sale_amount_cents has the sale amount in cents as opposed to dollars, and our end answer needs to be in dollars so we would have to multiply by 100.
Can someone please help writing the query to sum sales, in dollars, by date, rounding to two decimal places, and sorting from the greatest sale amount to the least?
I assume the query would look like this:
UPDATE SALES SET sale_amount_cents=sale_amount_cents*100
SELECT SUM(sale_amount_cents) from SALES
GROUP BY STATE
ORDER BY sale_amount_cents DESC;
select state, SUM(sale_amount_cents)/100 as Sales_in_dollar from SALES
GROUP BY STATE ORDER BY SUM(sale_amount_cents) DESC
I'm hoping you guys can help with this problem.
I have a set of data which I have displayed via excel.
I'm trying to work out the rolling new cap allowance but need to deduct from previous weeks bookings. I don't want to use a cursor so can anyone help.
I'm going to group by the product id so it will need to start afresh for every product.
In the image, Columns A to D are fixed and I am trying to calculate the data in column E ('New Cap'). The 'New Cap' is the expected results.
Column F gives a detailed formula of what im trying to do.
Not sure what I've done for the post to be marked down.
Thanks
Update:
The formula looks like this.
You want the sum of the cap through this row minus the sum of booked through the previous row. This is easy to do with window functions:
select t.*,
(sum(cap + booked) over (partition by productid order by weekbeg) - booked
) as new_cap
from t;
You can get the new running total using lag and sum over window functions - calculate the cap-booked first, then use sum over() for the running total:
select weekbeg, ProductId, Cap, Booked,
Sum(n) over(partition by productid order by weekbeg) New_Cap
from (
select *, cap - Lag(booked,1,0) over(partition by productid order by weekbeg)n
from t
)t
I created a query in Microsoft Access such as the one below:
SELECT LoanType
,Avg(Loan Amount)
,Avg(Loan Rate)
FROM Table1
GROUP BY LoanType
The output is as you would expect, the average loan amount and the average loan rate for each loan type.
However, I'd like for my Access Report to calculate the average of all the loans, regardless of loan type, and place this row at the very bottom. Using the Report view in Access, you can add a "Totals" row where you can write a formula such as COUNT(), SUM(), AVG(). But as you know, calculating an average of an average goes against basic math.
I'm assuming I have to create this "Totals" row at the SQL/Query level. But I can't seem to figure it out. Any input would be greatly appreciated!
You can use UNION ALL to add a row with a similar query, just without the GROUP BY and a NULL for LoanType (or any other value you like as long as it's implicitly castable to the data type of LoanType).
SELECT LoanType,
Avg(Loan Amount)
Avg(Loan Rate)
FROM Table1
GROUP BY LoanType
UNION ALL
SELECT NULL,
Avg(Loan Amount)
Avg(Loan Rate)
FROM Table1;
Of yourse you can do exactly what you described: Build a query that calculates the averages by LoanType, build a report on this query and calculate an average in the report footer. Unfortunately, this "total average" will be an average of averages, but I guess you want an average over all records. To achieve this:
Base your report on Table1.
Create a group to group by LoanType.
Calculate the averages by LoanType in the group footer.
If you don't want to see the details, set the details section to be invisible.
Calculate the "total averages" in the report footer.
Before I introduce my issue, I must specify that I am a beginner with SQL and Postgres.
I've made a database in Postgres, as a part of a project and I need to interrogate it. The database is about a firm which sells fertilizer.
One of the request is that I need to write a query that will return the Stores with Sales of 25% of the average of the total sales.
I have found out the average of the Sales by using the following query:
SELECT StoreID
FROM Sales
WHERE Price < (SELECT ROUND(AVG(Price)) FROM Sales);
Now, I don't know what should I put in the query to get the result.
Can anyone guide me?
If you mean sales with price below 25% of the average:
select storeid
from (
select storeid, price, avg(price) over() as avg_price
from sales
) s
where price < 0.25 * avg_price
I have a table that contains items, buyprice, and sellprice. I need to figure out how to return which items were sold for a profit above average. I realize that for each item that I need to calculate sellprice-buyprice to get the profit. I then need to take the profit from each item and calculate the average profit of all of the items. I then need to return the items that have profits that are above that average. I have tried various subselects and I just can't seem to figure out how to return what I want.
Seems simple enough:
SELECT * FROM TBL WHERE sellprice-buyprice > (SELECT AVG(sellprice-buyprice) FROM TBL )
Am i missing something?