I'm trying to use a join on three tables query I found in another post (post #5 here). When I try to use this in the SQL tab of one of my tables in phpMyAdmin, it gives me an error:
#1066 - Not unique table/alias: 'm'
The exact query I'm trying to use is:
select r.*,m.SkuAbbr, v.VoucherNbr from arrc_RedeemActivity r, arrc_Merchant m, arrc_Voucher v
LEFT OUTER JOIN arrc_Merchant m ON (r.MerchantID = m.MerchantID)
LEFT OUTER JOIN arrc_Voucher v ON (r.VoucherID = v.VoucherID)
I'm not entirely certain it will do what I need it to do or that I'm using the right kind of join (my grasp of SQL is pretty limited at this point), but I was hoping to at least see what it produced.
(What I'm trying to do, if anyone cares to assist, is get all columns from arrc_RedeemActivity, plus SkuAbbr from arrc_Merchant where the merchant IDs match in those two tables, plus VoucherNbr from arrc_Voucher where VoucherIDs match in those two tables.)
Edited to add table samples
Table arrc_RedeemActivity
RedeemID | VoucherID | MerchantID | RedeemAmt
----------------------------------------------
1 | 2 | 3 | 25
2 | 6 | 5 | 50
Table arrc_Merchant
MerchantID | SkuAbbr
---------------------
3 | abc
5 | def
Table arrc_Voucher
VoucherID | VoucherNbr
-----------------------
2 | 12345
6 | 23456
So ideally, what I'd like to get back would be:
RedeemID | VoucherID | MerchantID | RedeemAmt | SkuAbbr | VoucherNbr
-----------------------------------------------------------------------
1 | 2 | 3 | 25 | abc | 12345
2 | 2 | 5 | 50 | def | 23456
The problem was you had duplicate table references - which would work, except for that this included table aliasing.
If you want to only see rows where there are supporting records in both tables, use:
SELECT r.*,
m.SkuAbbr,
v.VoucherNbr
FROM arrc_RedeemActivity r
JOIN arrc_Merchant m ON m.merchantid = r.merchantid
JOIN arrc_Voucher v ON v.voucherid = r.voucherid
This will show NULL for the m and v references that don't have a match based on the JOIN criteria:
SELECT r.*,
m.SkuAbbr,
v.VoucherNbr
FROM arrc_RedeemActivity r
LEFT JOIN arrc_Merchant m ON m.merchantid = r.merchantid
LEFT JOIN arrc_Voucher v ON v.voucherid = r.voucherid
Related
I have for example as first query: (ararnr = article number)
Select ararnr,ararir,aoarom from ar left join ao ON AR.ARARNR=AO.AOARNR WHERE AR.ARARKD=1389
the second query uses the result from the first column from the first query to search in another table
Select votgan, sum(ststan) as totalStock from vo INNER JOIN st on vo.voarnr=st.starnr where voarnr = ararnr
How could I combine both ?
Please note : Not all articlenumbers from the first query will be found in the second, but I need them in my result.
In the result I need the columns from both queries.
EDIT
for example :
first query returns article numbers and the description:
+---------+--------------+
| ararnr | aoarom |
+---------+--------------+
| a123456 | description1 |
| b123456 | description2 |
| 0123456 | description3 |
+---------+--------------+
second query returns the totalstock for those articles:
+---------+--------------+
| ararnr | totalstock |
+---------+--------------+
| a123456 | 12 |
| b123456 | |
| 0123456 | 6 |
+---------+--------------+
Note the second one doesn't return a value since the articlenumber doesn't exist in this table.
In my result I would like to get the articlenumber with corresponding description and stock.
+---------+--------------+-----------+---------+
| ararnr | aoarom | totalStock| vovoan |
+---------+--------------+-----------+---------+
| a123456 | description1 | 12 | 2 |
| b123456 | description2 | | 1 |
| 0123456 | description3 | 6 | |
+---------+--------------+-----------+---------+
I'm using sql on db2
SECOND EDIT
The first query will select some article numbers (ararnr) from table ar and find the corresponding description (aoarom) in another table ao.
The second query finds the stock (vovoan and sum ststan) from two differend tables vo and st for the article numbers found in the first query.
The result should have the article number with corresponding description with corresponding stock from vo and st
I can't fully understand what you're asking, but another join may assist you.
example:
SELECT ar.ararnr, ar.ararir, ar.ararom, vo.votgan, SUM(vo.ststan) as totalStock
FROM ar LEFT JOIN ao ON [id=id] LEFT JOIN vo ON [id=id]
Because I can't tell what your tables structure are, or what you're really asking for, this is the best response I can give you.
This also may be what you're looking for:
Combining 2 SQL queries and getting result set in one
You can use this query.
SELECT ar.ararnr, ar.ararir, ar.ararom, vo.votgan, SUM(vo.ststan) as totalStock
FROM ar
LEFT JOIN ao ON ao.ararnr = ar.ararnr
LEFT JOIN vo ON vo.voarnr = ao.ararnr
If you are using SQL Server as database then this can be done with help of OUTER APPLY
SELECT ararnr,aoarom ,temp.totalStock
FROM ar
LEFT JOIN ao ON AR.ARARNR=AO.AOARNR
OUTER APPLY(
SELECT sum(ststan) as totalStock
FROM vo
INNER JOIN st on vo.voarnr=st.starnr
where voarnr = ar.ararnr
)temp
WHERE AR.ARARKD=1389
You'd get a much more complete answer if you were to post the table structure and desired result, but..
You can use the first query as a resultset for your second query, and join to it. something like:
Select
votgan,
sum(ststan) as totalStock
from vo
inner join (Select
ararnr,
ararir,
ararom
from ar
left join ao .....) z on vo.voarnr = z.ararnr
EDIT:
Select
votgan,
sum(ststan) as totalStock,
z.ararnr,
z.aoarom
from vo
inner join (Select
ararnr,
ararir,
ararom
from ar
left join ao .....) z on vo.voarnr = z.ararnr
I've put in the requisite 2+ hours of digging and not getting an answer.
I'd like to merge 3 SQL tables, where Table A and B share a column in common, and Table B and C share a column in common--Tables A and C do not.
For example:
Table A - entity_list
entity_id | entity_name | Other, irrelevant columns
Example:
1 | Microsoft |
2 | Google |
Table B - transaction_history
transaction_id | purchasing_entity | supplying_entity | other, irrelevant columns
Example:
1 | 2 | 1
Table C - transaction_details
transactional_id | amount_of_purchase | Other, irrelevant columns
1 | 5000000 |
Using INNER JOIN, I've been able to get a result where I can link entity_name to either purchasing_entity or supplying_entity. And then, in the results, rather than seeing the entity_id, I get the entity name. But I want to substitute the entity name for both purchasing and supplying entity.
My ideal results would look like this:
1 [transaction ID] | Microsoft | Google | 5000000
The closes I've come is:
1 [transaction ID] | Microsoft | 2 [Supplying Entity] | 5000000
To get there, I've done:
SELECT transaction_history.transaction_id,
entity_list.entity_name,
transaction_history.supplying_entity,
transaction_details.amount_of_purchase
FROM transaction.history
INNER JOIN entity_list
ON transaction_history.purchasing_entity=entity_list.entity.id
INNER JOIN
ON transaction_history.transaction_id=transaction_details.transaction_id
I can't get entity_name to feed to both purchasing_entity and supplying_entity.
Here is the query:
SELECT h.transaction_id, h.purchasing_entity, purchaser.entity_name, h.supplying_entity, supplier.entity_name, d.amount_of_purchase
FROM transaction_history h
INNER JOIN transaction_details d
ON h.transaction_id = d.transaction_id
INNER JOIN entity_list purchaser
ON h.purchasing_entity = purchaser.entity_id
INNER JOIN entity_list supplier
ON h.supplying_entity = supplier.entity_id
How can I join two tables using intervals in Google Big Query?
I have two table:
Table CarsGPS:
ID | Car | Latitude | Longitude
1 | 1 | -22.123 | -43.123
2 | 1 | -22.234 | -43.234
3 | 2 | -22.567 | -43.567
4 | 2 | -22.678 | -43.678
...
Table Areas:
ID | LatitudeMin | LatitudeMax | LongitudeMin | LongitudeMax
1 | -22.124 | -22.120 | -43.124 | -43.120
2 | -22.128 | -22.124 | -43.128 | -43.124
...
I'd like to cross join these tables to check in which areas each car has passed by using Google Big Query.
In a regular SQL server I would make:
SELECT A.ID, C.Car
FROM Cars C, Areas A
WHERE C.Latitude BETWEEN A.LatitudeMin AND A.LatitudeMax AND
C.Longitude BETWEEN A.LongitudeMin AND A.LongitudeMax
But Google Big Query only allows me to do joins (even JOIN EACH) using exact matches among joined tables. And the "FROM X, Y" means UNION, not JOINS.
So, this is not an option:
SELECT A.ID, C.Car
FROM Cars C
JOIN EACH
Areas A
ON C.Latitude BETWEEN A.LatitudeMin AND A.LatitudeMax AND
C.Longitude BETWEEN A.LongitudeMin AND A.LongitudeMax
Then, how can I run something similar to it to identify which cars passed inside each area?
BigQuery now supports CROSS JOIN. Your query would look like:
SELECT A.ID, C.Car
FROM Cars C
CROSS JOIN Areas A
WHERE C.Latitude BETWEEN A.LatitudeMin AND A.LatitudeMax AND
C.Longitude BETWEEN A.LongitudeMin AND A.LongitudeMax
I have 2 tables
Bid_customer
|bidkey | customerkey
| 1 | 1
| 1 | 2
| 1 | 3
customer_groups
| groupkey | customerkey
| 1 | 1
| 1 | 2
| 1 | 3
What I'm trying to get is a result that will look like
| bidkey | groupkey
| 1 | 1
I've tried a cursor and joins but just don't seem to be able to get what i need any ideas or suggestions
EDIT: customers can belong to more that one group also
I am not sure who meaningful your sample data is. However following is a simple example.
Query:
select distinct b.bidkey, g.gkey
from bidcus b
inner join cusgroup g
on
b.cuskey = g.cuskey
and g.gkey = 10;
Results:
BIDKEY GKEY
1 10
Reference: SQLFIDDLE
In order to have a working Many-to-Many relationship in a database you need to have an intermediary table that defines the relationship so you do not get duplicates or mismatched values.
This select statement will join all bids with all groups because the customer matches.
Select bidkey, groupkey
From customer_groups
Inner Join bid_customer
Where customer_groups.customerkey = Bid_customer.customerkey
Hers is a sample Many to Many Relationship:
For your question:
You will need another table that joins the data. For example, GroupBids
customer_groups and bid_customer would have a one-to-many relationship with GroupBids
You would then do the following select to get your data.
Select bidkey, groupkey
From bid_customer
inner join GroupBids
ON bid_customer.primarykey = GroupBids.idBidKey
inner join customer_groups
ON customer_groups.primarykey = GroupBids.idCustomerGroupkey
This would make sure only related groups and bids are returned
I have to group some data into categories, based on the column "qualifier" that could be 1,2,3,4, or empty.
The problem is that "empty" is not considered into the "group by" categories.
Here's my query:
SELECT m.id, m.name, COUNT (*)
FROM _gialli_g2bff_distinct AS g
INNER JOIN flag.qualifier_flags AS m ON g.qualifier = m.id
GROUP BY m.name, m.id
ORDER BY m.id;
Here's the answer:
1 | "NOT_CONTRIBUTES_TO" | 2
2 | "CONTRIBUTES_TO" | 411
3 | "COLOCALIZES_WITH" | 200
4 | "NOT" | 983
The problem of this answer is that it does not take into account all the elements that have qualifier field EMPTY.
Here's what I would like to have as answer:
1 | "NOT_CONTRIBUTES_TO" | 2
2 | "CONTRIBUTES_TO" | 411
3 | "COLOCALIZES_WITH" | 200
4 | "NOT" | 983
5 | | 1854
How could I modify my query?
Thanks
Your problem is not occuring at the GROUP BY level, but rather in the JOIN. The rows with a NULL qualifier cannot be JOINed and, because you're using INNER JOIN, they fall out of the result set.
Use LEFT OUTER JOIN to see all the rows.