So say I have two tables in Oracle SQL (not actually data but for ease should highlight my question)
Table1 that contains only Order_id and Order_quantity and Table2 that contains only Order_id and Order_price
Then I join them as follows
Select T1.Order_id,
T1.Order_quantity,
T2.Order_price,
T1.Order_quantity*T2.Order_price As "Order_amount",
Sum(Order_amount) As "Total_Sales"
from Table1 T1
inner join Table2 T2
on T1.Order_id = T2.Order_id
So essentially I want to have two extra columns, one as the product of columns from the two tables, and another as the sum of that column in my joined table(so every entry will be the same). However as you need to
SUM(variable_name) From Table_Name
Can I assign a variable name to my new table and then refer to that. I tried the following but I'm getting a SQL command not properly ended error
Select T1.Order_id,
T1.Order_quantity,
T2.Order_price,
T1.Order_quantity*T2.Order_price As "Order_amount",
Sum(Order_amount) from New_Table As "Total_Sales"
from (Table1 T1
inner join Table2 T2
on T1.Order_id = T2.Order_id) As New_Table
Thanks for any assistance, apologies as I have a pretty naive understanding of SQL at present
I think you just want a window function:
select T1.Order_id, T1.Order_quantity, T2.Order_price,
T1.Order_quantity*T2.Order_price As order_amount,
sum(T1.Order_quantity*T2.Order_price) over () As Total_Sales
from Table1 T1 inner join
Table2 T2
on T1.Order_id = T2.Order_id
You cannot re-use the alias order_amount in the select. You need to repeat the expression -- or use a subquery or CTE to define it.
If your DBMS doesn't have a window function supports then you can use subquery instead
select order_id, Order_quantity,
(select t1.Order_quantity * t2.Order_price
from table2 t2
where t2.Order_id = t1.Order_id) as Order_amount,
(select sum(t1.Order_quantity * t2.Order_price)
from table2 t2
where t2.Order_id = t1.Order_id) as Total_Sales
from table1 t1;
Related
Problem: I am currently trying to join two tables in Access where the absolute value of the total of multiple occurrences of one field in one table is equal to the absolute value of the occurrence in another table.
Am I able to use the Abs function in the WHERE statement? Everything I saw involved the function being used in the SELECT statement. Do I need to create separate queries to get the absolute values? It would also work if I were to check to see if they balance out rather than getting the absolute value.
In one table, a certain value will repeat multiple times while it will only appear once in the other table. How can I get the absolute values of the totals in order to compare it to the single occurrence in the other table? Thanks!
Table 1
Reference
Amount
55555
$15
55555
$20
Table 2
Reference
Amount
55555
-$35
If these are equal or if they balance out, they should appear on a query. If these aren't equal but the reference number and a partial amount appears, they should appear on another query.
The matching query is relatively simple. Just aggregate and compare the values:
select t2.reference, t2.amount
from (select reference, sum(amount) as amount
from table2
group by reference
) as t2 inner join
(select reference, sum(amount) as amount
from table1
group by reference
) as t1
on t1.reference = t2.reference
where t2.amount + t1.amount = 0;
However, the non-matches are much trickier -- because presumably a reference could be missing from either table. And MS Access does not support full join. One method is:
select t2.reference, t2.amount, t1.amount
from (select reference, sum(amount) as amount
from table2
group by reference
) as t2 left join
(select reference, sum(amount) as amount
from table1
group by reference
) as t1
on t1.reference = t2.reference
where t2.amount + t1.amount <> 0 or t1.amount is null
union all
select t1.reference, null, sum(amount)
from table1 as t1
where not exists (select 1 from table2 as t2 where t2.reference = t1.reference)
group by t1.reference;
Aggregate data in Table1 and join to Table2.
Consider:
SELECT Table2.*, SumAmt FROM Table2
INNER JOIN (SELECT Reference, Sum(Amount) AS SumAmt FROM Table1 GROUP BY Reference) AS T
ON Table2.Reference = T.Reference
WHERE SumAmt = -Table2.Amount;
You can list if the amounts match or not, no Abs is needed:
Select
Table2.Reference,
Table2.Amount,
(T.Total = -Table2.Amount) As T1Match
From
Table2
Inner Join
(Select
Table1.Reference,
Sum(Table1.Amount) As Total
From
Table1
Group By
Table1.Reference) As T
On T.Reference On Table2.Reference
you can use sub-query as follows:
select t1.reference from
(select reference, sum(amount) as amount from table1 group by reference) t1
join table2 t2
on abs(t1.amount) = abs(t2.amount)
I have two tables.
Table1 is 1591 rows. Table2 is 270 rows.
I want to fetch specific column data from Table2 based on some condition between them and also exclude duplicates which are in Table2. Which I mean to join the tables but get only one value from Table2 even if the condition has occurred more than time. The result should be exactly 1591 rows.
I tried to make Left,Right, Inner joins but the data comes more than or less 1591.
Example
Table1
type,address,name
40,blabla,Adam
20,blablabla,Joe
Table2
type,currency
40,usd
40,gbp
40,omr
Joining on 'type'
Result
type,address,name,currency
40,blabla,name,usd
20,blblbla,Joe,null
try this it has to work
select *
from
Table1 h
inner join
(select type,currency,ROW_NUMBER()over (partition by type order by
currency) as rn
from
Table2
) sr on
sr.type=h.type
and rn=1
Try this. It's standard SQL, therefore, it should work on your rdbms system.
select * from Table1 AS t
LEFT OUTER JOIN Table2 AS y ON t.[type] = y.[type] and y.currency IN (SELECT MAX(currency) FROM Table2 GROUP BY [type])
If you want to control which currency is joined, consider altering Table2 by adding a new column active/non active and modifying accordingly the JOIN clause.
You can use outer apply if it's supported.
select a.type, a.address, a.name, b.currency
from Table1 a
outer apply (
select top 1 currency
from Table2
where Table2.type = a.type
) b
I typical way to do this uses a correlated subquery. This guarantees that all rows in the first table are kept. And it generates an error if more than one row is returned from the second.
So:
select t1.*,
(select t2.currency
from table2 t2
where t2.type = t1.type
fetch first 1 row only
) as currency
from table1 t1;
You don't specify what database you are using, so this uses standard syntax for returning one row. Some databases use limit or top instead.
I am using this code for inventory management system, in which i want to retrieve stock in hand from four tables. i have tried with two table and got accurate result as i need it.please help me out.
Table Schema
Productmastertb
prod_id,
Product_name
salesdetailstb
sales_id,
Prod_id,
Prod_qty
estimatedetailstb
est_id,
Prod_id,
Prod_qty
Purchasedetailstb
est_id,
Prod_id,
Prod_qty
Query example (working):
SELECT
productmastertb.prod_id,
productmastertb.prod_name,
sum(estimatedetailstd.prod_qty) as Est_qty
FROM
productmaster
INNER JOIN
estimatedetailstb ON productmastertb.prodid = estimatedetails.prodid
GROUP BY
productmastertb.prod_id, productmastertb.prod_name
Similarly I have to retrieve sum of salesdetailstb.qty and purchasedetailstb.qty
Thanks in advance
You want to summarize across different "dimensions" -- that is tables. One good approach is to aggregate before doing the JOINs. Or to use subqueries. Here is the latter approach:
SELECT pm.prod_id, pm.prod_name,
(SELECT SUM(ed.prod_qty)
FROM estimatedetailstb as ed
WHERE ed.prodid = ed.prodidas
) as Est_qty,
(SELECT SUM(sd.prod_qty)
FROM salesdetailstb as sd
WHERE sd.prodid = pm.prodidas
) as Sales_qty,
(SELECT SUM(pd.prod_qty)
FROM purchasedetailstb as pd
WHERE pd.prodid = pm.prodid
) as Sales_qty
FROM productmaster pm;
This will give you all products, even those missing from one or more of the other tables.
You can add multiple joins.
SELECT t1.id, t4.name, count(t4.name)
FROM Table1 AS t1
INNER JOIN Table2 AS t2 -- the AS statement renames the table within
-- this query to t2. Columns from this table can be used
-- as t2.columnname. This needs to be done when you have
-- columns with the same name in different tables.
ON t1.id = t2.id
INNER JOIN Table3 as t3
ON t1.id = t3.id
INNER JOIN Table4 as t4
ON t3.name = t4.name
GROUP BY t1.id, t4.name
There are three tables,we have to select data from these table using one primary key and foreign key. But in the one table there is lot of data in the third table. We have to sum the data on the base of the primary key.
BAl = Balance, met = Method, amo = amount, cst_id, cut_id, cut_i = customer_id
Now we have to sum the on the basis of method and sum for 10 cust id in the same query. Can anyone help me on this?
;WITH cte
AS
(
SELECT
*,
ROW_NUMBER() OVER (ORDER BY t1.cst_id) RowNum
FROM Table1 t1
INNER JOIN Table2 t2
ON t1.cst_id = t2.cut_id
INNER JOIN Table3 t3
ON t2.cut_id = t3.customer_id
AND t2.BAL = t3.Balance
AND t2.amo = t3.amount
)
SELECT SUM(*)
FROM cte
WHERE RowNum Between 1 AND 10
-- You can add a GROUP BY here
If you give some sample data it will be easier to write queries to help you.
But if your MET field is numerical and you want to sum it then you need.
select
t1.cst_n, t2.bal,
sum(t3.met) as met,
sum(t3.amo) as amo
from table1 as t1
inner join table2 as t2 on t2.cut_id = t1.cst_id
inner join table3 as t3 on t3.cut_i = t1.cst_id
group by t1.cst_n, t2.bal
well if you want to sum data for all 10 customers into one number, may be you just need
select
sum(t3.met) as met,
sum(t3.amo) as amo
from table3 as t3
where t3.cut_i in (select t.customerid from #<your variable table with cust. ids> as t)
I am a little confused as to how to approach this SQL query.
I have two tables (equal number of records), and I would like to return a column with which is the division between the two.
In other words, here is my not-working-correctly query:
SELECT( (SELECT v FROM Table1) / (SELECT DotProduct FROM Table2) );
How would I do this? All I want it a column where each row equals the same row in Table1 divided by the same row in Table2. The resulting table should have the same number of rows, but I am getting something with a lot more rows than the original two tables.
I am at a complete loss. Any advice?
It sounds like you have some kind of key between the two tables. You need an Inner Join:
select t1.v / t2.DotProduct
from Table1 as t1
inner join Table2 as t2
on t1.ForeignKey = t2.PrimaryKey
Should work. Just make sure you watch out for division by zero errors.
You didn't specify the full table structure so I will assume a common ID column to link rows in the tables.
SELECT table1.v/table2.DotProduct
FROM Table1 INNER JOIN Table2
ON (Table1.ID=Table2.ID)
You need to do a JOIN on the tables and divide the columns you want.
SELECT (Table1.v / Table2.DotProduct) FROM Table1 JOIN Table2 ON something
You need to substitue something to tell SQL how to match up the rows:
Something like: Table1.id = Table2.id
In case your fileds are both integers you need to do this to avoid integer math:
select t1.v / (t2.DotProduct*1.00)
from Table1 as t1
inner join Table2 as t2
on t1.ForeignKey = t2.PrimaryKey
If you have multiple values in table2 relating to values in table1 you need to specify which to use -here I chose the largest one.
select t1.v / (max(t2.DotProduct)*1.00)
from Table1 as t1
inner join Table2 as t2
on t1.ForeignKey = t2.PrimaryKey
Group By t1.v