I'm working on an update statement but I keep getting this error. Anyone have any advice on how to fix it. I've tried looking at solutions from similar questions for the past hour but can't seem to get them to work. Here's my sql statemtent:
UPDATE T_SUBSCRIBERS
SET FULLNAME=
(SELECT CONCAT (T_REGISTERED_FNAME, T_REGISTERED_LNAME) FROM T_REGISTERED WHERE
T_REGISTERED_UID = T_SUBSCRIBERS.T_SUBSCRIBERS_UID);
** Update ur sql like this :**
UPDATE T_SUBSCRIBERS
SET FULLNAME=
(SELECT CONCAT (T_REGISTERED_FNAME, T_REGISTERED_LNAME) FROM T_REGISTERED WHERE
T_REGISTERED_UID = T_SUBSCRIBERS.T_SUBSCRIBERS_UID AND ROWNUM = 1);
You have more more rows that match the conditions than you expect.
You can find the offending rows by doing:
select T_REGISTERED_UID, count(*)
from T_REGISTERED
group by T_REGISTERED_UID
having count(*) > 1;
If you just want a quick-and-dirty solution, use limit:
UPDATE T_SUBSCRIBERS s
SET FULLNAME = (SELECT CONCAT(T_REGISTERED_FNAME, T_REGISTERED_LNAME)
FROM T_REGISTERED r
WHERE r.T_REGISTERED_UID = s.T_SUBSCRIBERS_UID
LIMIT 1
);
In general, though, it is best not repeat column values like this in different tables. When you want the full name, just join to T_REGISTERED. After all, what happens if the user updates their registration name?
Related
I am currently doing some SQL magic and wanted to update the stock in my companies ERP program. However if I try to run the following query I get the error mentioned in the title.
update llx_product lp
set stock = (select sum(ps.reel)
from llx_product_stock as ps, llx_entrepot as w
where w.entity IN (1)
and w.rowid = ps.fk_entrepot
and ps.fk_product = lp.rowid
group by ps.rowid)
The subquery by itself returns just one row if used with a rowid for the product.
select sum(ps.reel)
from llx_product_stock as ps, llx_entrepot as w
where w.entity in (1)
and w.rowid = ps.fk_entrepot
and ps.fk_product = 7372
group by ps.rowid
Any help would be appreciated
I would suggest writing the query as:
update llx_product lp
set stock = (select sum(ps.reel)
from llx_product_stock ps join
llx_entrepot w
on ps.fk_product = lp.rowid
where w.entity in (1) and
w.rowid = ps.fk_entrepot
);
An aggregation query with no group by cannot return more than one row. It is unclear how your version is returning more than one row because the key used in the group by also has an equality comparison. Perhaps there is some type conversion issue at play.
But in any case, without the group by, you cannot get the error you are currently getting.
For anyone wondering the solution to my issue was a very simple query, Gordon pointed in the right direction and I made it harder than it should be.
update llx_product lp
left join llx_product_stock ps on lp.rowid = ps.fk_product
set lp.stock = ps.reel
I am trying to create a MySQL query of game discs to find some duplicates based on some values being the same and some not.
I need the fields 'name', 'disc', 'platform', 'region' to be the same.
But I also need the field 'version' to be different.
I have already tried a number of queries to do this such as the one below but none seem to work as desired.
SELECT *
FROM media.amps_2000_box_a
INNER JOIN (SELECT *
FROM media.amps_2000_box_a
GROUP BY name
HAVING COUNT(name) > 1) dup
ON media.amps_2000_box_a.name = dup.name and media.amps_2000_box_a.disk = dup.disk and media.amps_2000_box_a.format = dup.format and media.amps_2000_box_a.region = dup.region and media.amps_2000_box_a.version<> dup.version
order by dup.name;
Would anyone be able to help me fix this query?
Thanks in advance.
slick
Maybe I'm missing something but the solution seems quite trivial:
SELECT DISTINCT
amps1.name,
amps1.disk,
amps1.platform,
amps1.region
FROM media.amps_2000_box_a amps1
JOIN media.amps_2000_box_a amps2
ON amps1.name = amps2.name
AND amps1.disk = amps2.disk
AND amps1.platform = amps2.platform
AND amps1.region = amps2.region
AND amps1.version <> amps2.version
ORDER BY amps1.name;
I'm trying to write a MYSQL Query that updates a cell in table1 with information gathered from 2 other tables;
The gathering of data from the other 2 tables goes without much issues (it is slow, but that's because one of the 2 tables has 4601537 records in it.. (because all the rows for one report are split in a separate record, meaning that 1 report has more than 200 records)).
The Query that I use to Join the two tables together is:
# First Table, containing Report_ID's: RE
# Table that has to be updated: REGI
# Join Table: JT
SELECT JT.report_id as ReportID, REGI.Serienummer as SerialNo FROM Blancco_Registration.TrialTable as REGI
JOIN (SELECT RE.Value_string, RE.report_id
FROM Blancco_new.mc_report_Entry as RE
WHERE RE.path_id=92) AS JT ON JT.Value_string = REGI.Serienummer
WHERE REGI.HardwareType="PC" AND REGI.BlanccoReport=0 LIMIT 100
This returns 100 records (I limit it because the database is in use during work hours and I don't want to steal all resources).
However, I want to use these results in a Query that updates the REGI table (which it uses to select the 100 records in the first place).
However, I get the error that I cannot select from the table itself while updateing it (logically). So I tried selecting the select statement above into a temp table and than Update it; however, then I get the issue that I get to much results (logically! I only need 1 result and get 100) however, I'm getting stuck in my own thougts.. I ultimately need to fill the ReportID into each record of REGI.
I know it should be possible, but I'm no expert in MySQL.. is there anybody that can point me into the right direction?
Ps. fixing the table containing 400k records is not an option, it's a program from an external developer and I can only read that database.
The errors I'm talking about are as follows:
Error Code: 1093. You can't specify target table 'TrialTable' for update in FROM clause
When I use:
UPDATE TrialTable SET TrialTable.BlanccoReport =
(SELECT JT.report_id as ReportID, REGI.Serienummer as SerialNo FROM Blancco_Registration.TrialTable as REGI
JOIN (SELECT RE.Value_string, RE.report_id
FROM Blancco_new.mc_report_Entry as RE
WHERE RE.path_id=92) AS JT ON JT.Value_string = REGI.Serienummer
WHERE REGI.HardwareType="PC" AND REGI.BlanccoReport=0 LIMIT 100)
WHERE TrialTable.HardwareType="PC" AND TrialTable.BlanccoReport=0)
Then I tried:
UPDATE TrialTable SET TrialTable.BlanccoReport = (SELECT ReportID FROM (<<and the rest of the SQL>>> ) as x WHERE X.SerialNo = TrialTable.Serienummer)
but that gave me the following error:
Error Code: 1242. Subquery returns more than 1 row
Haveing the Query above with a LIMIT 1, gives everything the same result
Firstly, your query seems to be functionally identical to the following:
SELECT RE.report_id ReportID
, REGI.Serienummer SerialNo
FROM Blancco_Registration.TrialTable REGI
JOIN Blancco_new.mc_report_Entry RE
ON RE.Value_string = REGI.Serinummer
WHERE REGI.HardwareType = "PC"
AND REGI.BlanccoReport=0
AND RE.path_id=92
LIMIT 100
So, why not use that?
EDIT:
I still don't get it. I can't see what part of the problem the following fails to solve...
UPDATE TrialTable REGI
JOIN Blancco_new.mc_report_Entry RE
ON RE.Value_string = REGI.Serinummer
SET TrialTable.BlanccoReport = RE.report_id
WHERE REGI.HardwareType = "PC"
AND REGI.BlanccoReport=0
AND RE.path_id=92;
(This is not an answer, but maybe a pointer towards a few points that need further attention)
Your JT sub query looks suspicious to me:
(SELECT RE.Value_string, RE.report_id
FROM Blancco_new.mc_report_Entry as RE
WHERE RE.path_id=92
GROUP BY RE.report_id)
You use group by but don't actually use any aggregate functions. The column RE.Value_string should strictly be something like MAX(RE.Value_string) instead.
I wanna write a query like this :
UPDATE `test_credit`
SET `test_credit`.`credit`=(`test_credit`.`credit`-((`test_credit`.`credit`/100)*5))
WHERE `test_credit`.`name` = `users`.`uname`
in fact i want to get a query on users.uname = test_credit.name but mysql say it has error and realize users.uname as column
what is correct query ?
You need to explicitly join it with table users. As far from my understanding based on your query, you want to calculate the credit if the names exists on both tables.
Give this a try,
UPDATE test_credit a
INNER JOIN users b
ON a.name = b.uname
SET a.credit = (a.credit - ((a.credit/100) * 5.0))
-- WHERE b.parent= "example"
I am bit stuck with this one.. what i want is update app_name (first table). It returns no error.. but does nothing...
UPDATE tbl_m_app AS tma, tbl_measure AS tm
SET tma.app_name='Ap1'
WHERE (tm.mesure_id = tma.mesure_id
AND tm.live = 1)
This query will do the same work in more obvious way and without joins
UPDATE tbl_m_app AS tma
SET tma.app_name='Ap1'
WHERE tma.mesure_id IN (SELECT tm.mesure_id FROM tbl_measure AS tm WHERE tm.live = 1)
I think this SQL is fine, it's just not matching any rows.
Check this by using a select with the same where clause:
SELECT * FROM tbl_measure tm WHERE tm.live=1;
0 rows returned, right?