Can you assist me with my query? I keep receiving an error that states "Error Code: 1054. Unknown column 'cdata.customerid' in 'on clause'"
If I want to attach the left join data where the customer id's match from customerdata table and order table, how can I achieve this? I must not understand at what point SQL allows data to become accessible by different parts of the query.
select
cdata.customerid,
cdata.affiliate,
cdata.firstname,
cdata.address1,
cdata.address2,
cdata.city,
cdata.state,
cdata.postalcode,
cdata.emailaddress,
cdata.active
from customerdata cdata, order a
left join
(select
a.transactiondate,
sum(a.TransactionAmount),
a.id
from order a
group by a.id)
txns on a.id = cdata.customerid
where cdata.active = "A";
In on clause you have to specify fields that belong to the tables which are taking part in join clause. So, if you are joining cdata with the txns subquery, you have to probably join on txns.id and cdata.customerid. You probably also wanted to get your sum out of your subquery, so you have to include this field in your main SELECT clause. And you probably have to specify transactiondate field in your group by clause, at least this is necessary for ORACLE DB, I am not sure if this is the case for MySQL:
select
cdata.customerid,
cdata.affiliate,
cdata.firstname,
cdata.address1,
cdata.address2,
cdata.city,
cdata.state,
cdata.postalcode,
cdata.emailaddress,
cdata.active,
txns.tsum,
txns.transactiondate
from customerdata cdata
left join
(select
a.transactiondate,
sum(a.TransactionAmount) tsum,
a.id
from order a
group by a.id, a.transactiondate) txns
on txns.id = cdata.customerid
where cdata.active = "A";
The JOIN references the table 'order' and the table 'txns', 'cdata' is not involved here, so within the context of the join cdata.customerid does not exist.
Related
my command:
Select sobe.Id, sobe.Naziv, sobe.Opis, sobe.Kat, (Select Group_CONCAT(studenti.Ime,studenti.Prezime) ImePrezime FROM studentsoba LEFT JOIN studenti ON studentsoba.Id_Sobe=sobe.Id AND studenti.JMBAG = studentsoba.JMBAG) AS ImePrezime from Sobe
This gives me this error:
1054 - Unknown column 'sobe.Id' in 'on clause'
I see what the problem is but I cant figure out how to fix it.
I want to pass sobe.Id inside of this subquery:
(Select Group_CONCAT(studenti.Ime,studenti.Prezime) ImePrezime FROM studentsoba LEFT JOIN studenti ON studentsoba.Id_Sobe=sobe.Id AND studenti.JMBAG = studentsoba.JMBAG)
I want to check which students are in that room.
Word soba means room and JMBAG is like personal number for each student
Try moving it to a WHERE clause:
Select s.Id, sobe.Naziv, s.Opis, s.Kat,
(Select Group_CONCAT(si.Ime, si.Prezime) as ImePrezime
from studentsoba ss LEFT JOIN
studenti si
on si.JMBAG = ss.JMBAG
where ss.Id_Sobe = s.Id
) AS ImePrezime
from Sobe s;
The correlated subquery should be fine. I suppose the correlation clause cannot be in the on clause -- I normally put it in the where clause anyway.
Also note that I introduced table aliases so the query is easier to write and to read.
I am working on a query with the following format:
I require all the columns from the Database 'A', while I only require the summed amount (sum(amount)) from the Database 'B'.
SELECT A.*, sum(B.CURTRXAM) as 'Current Transaction Amt'
FROM A
LEFT JOIN C
ON A.Schedule_Number = C.Schedule_Number
LEFT JOIN B
ON A.DOCNUMBR = B.DOCNUMBR
ON A.CUSTNMBR = B.CUSTNMBR
GROUP BY A
ORDER BY A.CUSTNMBR
My question is regarding the grouping statement, database A has about 12 columns and to group by each individually is tedious, is there a cleaner way to do this such as:
GROUP BY A
I am not sure if a simpler way exists as I am new to SQL, I have previously investigated GROUPING_ID statements but thats about it.
Any help on lumped methods of grouping would be helpful
Since the docnumber is the primary key - just use the following SQL:
SELECT A.*, sum(B.CURTRXAM) as 'Current Transaction Amt'
FROM A
LEFT JOIN C
ON A.Schedule_Number = C.Schedule_Number
LEFT JOIN B
ON A.DOCNUMBR = B.DOCNUMBR
ORDER BY RM20401.CUSTNMBR
GROUP BY A.DOCNUMBR
I am attempting to create a subquery in Access but I am receiving an error stating that one record can be returned by this subquery. I am wanting to find the top 10 companies that have the most pets then I want to know the name of those pets. I have never created a subquery before so I am not sure where I am going wrong. Here is what I have:
SELECT TOP 10 dbo_tGovenrnmentRegulatoryAgency.GovernmentRegulatoryAgency
(SELECT dbo_tPet.Pet
FROM dbo_tPet)
FROM dbo_tPet INNER JOIN dbo_tGovenrnmentRegulatoryAgency ON
dbo_tPet.GovernmentRegulatoryAgencyID =
dbo_tGovenrnmentRegulatoryAgency.GovernmentRegulatoryAgencyID
GROUP BY dbo_tGovenrnmentRegulatoryAgency.GovernmentRegulatoryAgency
ORDER BY Count(dbo_tPet.PetID) DESC;
Consider this solution, requiring a subquery in the WHERE IN () clause:
SELECT t1.GovernmentRegulatoryAgency, dbo_tPet.Pet,
FROM dbo_tPet
INNER JOIN dbo_tGovenrnmentRegulatoryAgency t1 ON
dbo_tPet.GovernmentRegulatoryAgencyID = t1.GovernmentRegulatoryAgencyID
WHERE t1.GovernmentRegulatoryAgency IN
(SELECT TOP 10 t2.GovernmentRegulatoryAgency
FROM dbo_tPet
INNER JOIN dbo_tGovenrnmentRegulatoryAgency t2 ON
dbo_tPet.GovernmentRegulatoryAgencyID = t2.GovernmentRegulatoryAgencyID
GROUP BY t2.GovernmentRegulatoryAgency
ORDER BY Count(dbo_tPet.Pet) DESC);
Table aliases are not needed but I include them for demonstration.
This should hopefully do it:
SELECT a.GovernmentRegulatoryAgency, t.NumOfPets
FROM dbo_tGovenrnmentRegulatoryAgency a
INNER JOIN (
SELECT TOP 10 p.GovernmentRegulatoryAgencyID, COUNT(p.PetID) AS NumOfPets
FROM dbo_tPet p
GROUP BY p.GovernmentRegulatoryAgencyID
ORDER BY COUNT(p.PetID) DESC
) t
ON a.GovernmentRegulatoryAgencyID = t.GovernmentRegulatoryAgencyID
In a nutshell, first get the nested query sorted, identifying what the relevant agencies are, then inner join back to the agency table to get the detail of the agencies so picked.
To elaborate, I'm selecting fields from item and locations tables. Connection is location_id from items table and id field from locations table. After join I'm doing WHERE statement on city_text field from locations table.
Is this legal action since I'm doing WHERE on field from second table?
SELECT uc_items.* ,
uc_users_store.id AS store_id,
uc_users_store.store_name,
uc_users_store.address,
uc_users_store.work_hours,
uc_locations.city_text AS city,
uc_locations.zipcode_text AS zipcode,
uc_locations.state_text AS STATE,
uc_locations.country_text AS country
FROM uc_items
LEFT OUTER JOIN uc_users_store ON uc_items.store_id=uc_users_store.id
LEFT OUTER JOIN uc_locations ON uc_users_store.store_location_id=uc_locations.id
WHERE uc_locations.city_text LIKE "%'.$city.'%"
AND uc_items.iname LIKE "%'.$description.'%"
AND uc_items.expiration_stamp > '.time().'
ORDER BY uc_items.posting_stamp DESC,
uc_items.discount DESC
It's legal, but might lead to unexpected results if the tested value is NULL. However, you could catch these situations by including an IS NULL check.
For instance
WHERE (col = 'value' OR col IS NULL)
Completely legal. However it would be a lot more logical to use INNER JOIN instead of LEFT JOIN since your WHERE statement is concerning the table you are joining to. A pseudo example:
SELECT t1.something, t2.somethin FROM first_table t1 INNER JOIN second_table t2 ON t1.some_id = t2.some_id_from_t1 WHERE t2.some_column='something'
This is my mysql query
SELECT tm.MAGAZINE_ID, tm.MAGAZINE_NAME,tm.MAGAZINE_DESCRIPTION,pub.publisher_name,
tmi.COVER_PAGE_THUMB AS COVER_PAGE_VERTICAL,tmi.FROM_DATE AS ISSUE_DATE,
tm.html_flag AS HTML_EXIST,tm.CATEGORY_ID,tm.language_id,tm.is_free,tma.AppUrl,
(SELECT issue_id from tbl_magazine_issue WHERE magazine_id = 141
ORDER BY FROM_DATE DESC LIMIT 1) as temp_issue_id
FROM tbl_magazine_apps as tma
LEFT OUTER JOIN tbl_magazine_code as tmc ON tmc.Code = tma.AppsCode
LEFT OUTER JOIN `tbl_magazine` AS tm ON tmc.magazine_Id = tm.MAGAZINE_ID
JOIN `tbl_magazine_issue` AS tmi ON temp_issue_id = tmi.issue_id
LEFT OUTER JOIN mst_publisher AS pub ON tm.publisher_id=pub.publisher_id
WHERE
tmi.PUBLISH_STATUS IN(1,3)
AND tmi.`OS_SELECT` = '".$osType."'
AND tma.id IN (".$appIds.")
GROUP BY tm.MAGAZINE_ID
ORDER BY tmi.ISSUE_DATE DESC
but i got an error that
#1054 - Unknown column 'temp_issue_id' in 'on clause'
if any one know about this please help me. i am new to this
AFAIK The subquery belongs to the from part:
http://dev.mysql.com/doc/refman/5.7/en/from-clause-subqueries.html
So I would join the subquery.
Like:
SELECT a.a, b.b
FROM table1 as a
JOIN (SELECT b from table2) as b ON a.key = b.key;
As the message suggests, the column temp_issue_id is not in any of the following tables: tbl_magazine_apps, tbl_magazine, or tbl_magazine_issue. It is also not a variable in the environment.
Beyond that, it is pretty much impossible for anyone to figure out how to fix the problem without more knowledge about the data structure.
If I were to hazard a guess, based on the table names, that particular join would be:
JOIN `tbl_magazine_issue` AS tmi ON tm.magazine_id = tmi.magazine_id
because it makes sense to me that a magazine issue would be connect to a magazine. I have no idea what temp_issue_id is, though.
temp_issue_id give alias name for specifying this column i think it should be tm.issue_id
temp_issue_id is column's name as per the query. You need it to convert to table and use subsequent column in your SELECT clause.