I've tried searching for this particular topic here, but haven't found the answer... Anyway, my aim is to update table (let's call it t_item), specifically column owner_id with values depending on another table (t_item_geo which is in turn linked to t_geo).
I'm not entirely sure whether the syntax below is actually valid for update statements.
UPDATE t_item SET owner_id= 6993 WHERE t_item.owner_id in
(SELECT t_item.owner_id FROM
t_item,
t_item_geo,
t_geo
WHERE
t_item.id = t_item_geo.item_id and
t_item_geo.geo_id = t_geo.id and
t_item.owner_id in (SELECT id FROM t_user WHERE network_id='fffffff') and
t_geo.id in (SELECT id FROM t_geo WHERE full_name = 'yyyyyyy')
);
Anyway, my problem with this query is that it updates far more rows than it should - if I separate just the select statement Oracle returns ~750 rows but the udpate itself updates more than 4000 rows. It's almost as if the condition was completely ignored - which would point me to perhaps incorrect syntax.
I need to update specific value in the table based on the select from few other 'joined' tables. Hope it makes sense.
Thanks for any contribution!
UPDATE: sorry - maybe it wasn't clear from the question itself, but the correct number of edited items should be ~750 and not ~4000. Thanks!
try this
MERGE INTO t_item
USING
(
SELECT t_item.owner_id FROM
t_item,
t_item_geo,
t_geo,
t_item.rowid rowid_sub
WHERE
t_item.id = t_item_geo.item_id and
t_item_geo.geo_id = t_geo.id and
t_item.owner_id in (SELECT id FROM t_user WHERE network_id='fffffff') and
t_geo.id in (SELECT id FROM t_geo WHERE full_name = 'yyyyyyy')
) on (rowid = rowid_sub)
WHEN MATCHED THEN
UPDATE SET owner_id= 6993;
Related
I have a table A with null dates (CREATED_ON_DT) in BI database. I need to update those nulls with the right dates from AFLDEV DB using a DB link mtl_system_items_b#afldev. Common key is inventory_item_id in AFLDEV and integration_id in BI DB. I have framed the following query but it does not work:
UPDATE w_product_d
SET w_product_d.CREATED_ON_DT = (SELECT min(creation_date)
FROM mtl_system_items_b#afldev B
where to_char(B.inventory_item_id)=w_product_d.integration_id
and B.organization_id = '102'
AND w_product_d.CREATED_ON_DT IS NULL
and w_product_d.integration_id in (SELECT T.integration_id
FROM (SELECT * FROM w_product_d ORDER BY w_product_d.integration_id )T
WHERE T.CREATED_ON_DT IS NULL)
);
If I run this query it updates all the dates to nulls but I need the opposite to happen i.e. replace null with the right dates.
Please help me out with this! I am doing this on SQL Developer for Oracle DB.
I think you've gotten all tied up between the rows you're updating and the rows you're using to update the column values with.
If you think about it, you're wanting to update rows in your w_product_d table where the created_on_dt is null, which means that your update statement will have a basic structure of:
update w_product_d wpd
set ...
where wpd.created_on_dt is null;
Once you have that, it's easy then to slot in the column you're updating and what you're updating it with:
update w_product_d wpd
set wpd.created_on_dt = (select min(creation_date)
from mtl_system_items_b#afldev b
where to_char(b.inventory_item_id) = wpd.integration_id)
where wpd.created_on_dt is null;
I have an update query in which I am trying to locate data in a column from a single table. All while taking other defined data listed in the query to update another column in the same table once a match has been found with that original search. Below is an example of my update statement. My end goal is to find '003447710' then update AltId to '540112'
UPDATE Site
SET AltId = ('540112'
'540129'
'540142'
'540143')
WHERE CCMFStatus in ('003447710',
'002754540',
'003564370',
'005942870')
I am sure there may already be something like this out there but I am really having trouble on an easy method on how to do this quickly and accurately.
Try this
update site
set altid = a.altid
from
(select altid,CCMFstatus from site) as a
where site.CCMFstatus = a.CCMFstatus
The best way might be multiple update statements:
UPDATE Site
SET AltId = '540112'
WHERE CCMFStatus = '003447710';
And so on.
If not, you can do this with a giant case statement or a join:
WITH values as (
SELECT '003447710' as oldstatus, '540112' as newaltid UNION ALL
SELECT '002754540', '540129' UNION ALL
SELECT '003564370', '540142' UNION ALL
SELECT '005942870', '540143'
)
UPDATE s
SET AltId = va.newaltid
FROM site s JOIN
values v
ON s.CCMFStatus = v.oldstatus;
If you already have the values in a table, then you don't need the WITH statement. You can just use the table.
Have you tried using CASE statement?
UPDATE SITE SET AltID = (CASE
WHEN CCMFStatus = '003447710' THEN '540112'
WHEN CCMFStatus = '002754540' THEN '540129'
END)
WHERE
CCMFStatus in ('003447710', '002754540', '003564370', '005942870');
BR,
Oracle 11g SQL & both tables have the same column definitions:
VARCHAR2(11)
NUMBER
DATE
DATE
I tried to find a solution to this problem, and this is what I ended up with, which fails:
update jjjTable
set [fourthCol] = B.[fourthOtherCol]
from jjjTable, otherTable B
where jjjTable.[firstCol] = B.[firstOtherCol]
and jjjTable.[secondCol] = B.[secondOtherCol]
and jjjTable.[thirdCol] = B.[thirdOtherCol]
I'm under the impression that I need to have the from in this was based on this article:
SQL update from one Table to another based on a ID match and the edited response from Shivkant
I'm under the impression that I may need to use a join based on this article:
How do I UPDATE from a SELECT in SQL Server? and the response from Robin Day
but as I understand it, joins are only on one column match per row. I'm interested in matching on 3 elements, and I'm not finding a clear path for solution.
Any direction would be well received.
This is what I ended up needing to do as a solution:
DECLARE
CURSOR j_CUR IS
SELECT A.[fourthCol]
FROM JJJtable A, otherTable B
WHERE A.[firstCol] = B.[firstOtherCol]
and A.[secondCol] = B.[secondOtherCol]
and A.[thirdCol] = B.[thirdOtherCol]
FOR UPDATE OF B.[fourthOtherCol];
SOME_DATE DATE;
BEGIN
FOR IDX IN j_CUR LOOP
SOME_DATE :=(IDX.[fourthCol]);
UPDATE otherTable
SET [fourthOtherCol] = SOME_DATE
WHERE CURRENT OF j_CUR;
END LOOP;
END;
Thank you for your efforts and guidance.
This is the close best I was able to get it to work on my similar use case. Try this out.
update jjjTable
SET jjjTable.[fourthCol] = (SELECT distint otherTable.fourthOtherCol from otherTable
WHERE otherTable.firstOtherCol = jjjTable.firstCol and
otherTable.secondOtherCol = jjjTable.secondCol and
otherTable.thirdOtherCol = jjjTable.thirdCol)
WHERE EXISTS (SELECT distint otherTable.fourthOtherCol from otherTable
WHERE otherTable.firstOtherCol = jjjTable.firstCol and
otherTable.secondOtherCol = jjjTable.secondCol and
otherTable.thirdOtherCol = jjjTable.thirdCol);
I've been trying for a few hours (probably more than I needed to) to figure out the best way to write an update sql query that will dissallow duplicates on the column I am updating.
Meaning, if TableA.ColA already has a name 'TEST1', then when I'm changing another record, then I simply can't pick a value for ColA to be 'TEST1'.
It's pretty easy to simply just separate the query into a select, and use a server layer code that would allow conditional logic:
SELECT ID, NAME FROM TABLEA WHERE NAME = 'TEST1'
IF TableA.recordcount > 0 then
UPDATE SET NAME = 'TEST1' WHERE ID = 1234
END IF
But I'm more interested to see if these two queries can be combined into a single query.
I am using Oracle to figure things out, but I'd love to see a SQL Server query as well. I figured a MERGE statement can work, but for obvious reasons you can't have the clause:
..etc.. WHEN NOT MATCHED UPDATE SET ..etc.. WHERE ID = 1234
AND you can't update a column if it's mentioned in the join (oracle limitation but not limited to SQL Server)
ALSO, I know you can put a constraint on a column that prevents duplicate values, but I'd be interested to see if there is such a query that can do this without using constraint.
Here is an example start-up attempt on my end just to see what I can come up with (explanations on it failed is not necessary):
ERROR: ORA-01732: data manipulation operation not legal on this view
UPDATE (
SELECT d.NAME, ch.NAME FROM (
SELECT 'test1' AS NAME, '2722' AS ID
FROM DUAL
) d
LEFT JOIN TABLEA a
ON UPPER(a.name) = UPPER(d.name)
)
SET a.name = 'test2'
WHERE a.name is null and a.id = d.id
I have tried merge, but just gave up thinking it's not possible. I've also considered not exists (but I'd have to be careful since I might accidentally update every other record that doesn't match a criteria)
It should be straightforward:
update personnel
set personnel_number = 'xyz'
where person_id = 1001
and not exists (select * from personnel where personnel_number = 'xyz');
If I understand correctly, you want to conditionally update a field, assuming the value is not found. The following query does this. It should work in both SQL Server and Oracle:
update table1
set name = 'Test1'
where (select count(*) from table1 where name = 'Test1') > 0 and
id = 1234
This is one annoying issue and I can't figure out how to solve it. I'm Using Microsoft SQL Server 2008.
So I have two tables and I need to update both of them. They share a common key, say id. I want to update Table1 with some stuff and then update the Table2 rows which were respectively modified in Table1.
The issue is that I don't quite know which rows were modified, because I'm picking them randomly with ORDER BY NEWID() so I probably cannot use a JOIN on Table2 in any way. I am trying to save the necessary details which were modified in my query for Table1 and pass them to Table2
This is what I'm trying to do
CREATE TABLE IDS (id int not null, secondid int)
SELECT [Table1].[id], [Table1].[secondid]
INTO IDS
FROM
(
UPDATE [Table1]
SET [secondid]=100
FROM [Table1] t
WHERE t.[id] IN
(SELECT TOP 100 PERCENT t.[id] FROM [Table1]
WHERE (SOME_CONDITION)
ORDER BY NEWID()
)
)
UPDATE [Table2]
SET some_column=i.secondid
FROM [Table2] JOIN IDS i ON i.id = [Table2].[id]
But I get
Incorrect syntax near the keyword 'UPDATE'.
So the question is: how can I solve the syntax error or is it a better way to do this?
Note: the query enclosed between the parentheses of the first FROM worked well before this new requirement, so I doubt there's a problem in there. Or maybe?
EDIT: Changing the second UPDATE as skk suggested still leads to the same error (on exactly the below line which contains UPDATE):
UPDATE [Table2]
SET some_column=i.secondid
FROM [Task] JOIN IDS i on i.[id]=[Table2].[id]
WHERE i.id=some_value
Instead of creating a new table manually, SQL server has the OUTPUT clause to help with this
It's complaining because you aren't aliasing the derived table used in the first query, immediately preceding UPDATE [Table2].
If you add an alias, you'll get a different error:
A nested INSERT, UPDATE, DELETE, or MERGE statement must have an OUTPUT clause.
Which leads back to #Adam Wenger's answer.
Not sure I completely understand what you are trying to do, but the following sql will execute (after replacing SOME_CONDITION):
CREATE TABLE IDS (id int not null, secondid int)
UPDATE t SET [secondid] = 100
OUTPUT inserted.[id], inserted.[secondid] into [IDS]
FROM [Table1] t
WHERE t.[Id] IN
(
SELECT TOP 100 PERCENT t.[id] from [Table1]
WHERE (SOME_CONDITION)
ORDER BY NEWID()
)
UPDATE [Table2]
SET some_column = i.secondid
FROM [Table2] JOIN IDS i ON i.id = [Table2].[id]
The Update syntax is as follows
UPDATE TableName SET ColumnName = Value WHERE {Condition}
but you have used FROM keyword also in that.
EDIT:
You change the code like follows and try again
UPDATE [Table2] SET some_column=IDS.secondid WHERE IDS.[id] = [Table2].[id] and
IDS.id=some_value