I was just trying to copy the values of one column into an empty column of another table .
The two tables are students and payments .
Students have two columns :
rno - primary key of number type // i filled it with some entries
amount //this is completely empty
payments also have same no of columns :
rno - foreign key referencing rno of students table
amount //this is FILLED
Now to copy amounts column from payments to students , i tried this command
insert into students(amount) select amount from payments ;
now normally this command works like a charm ,but here it is behaving slightly different . It throws an error that
NULL values cannot be inserted into students.rno
I tried reasoning that maybe its due to different number of entries inserted in two tables , but on eqalizing the no . of entries in both the tables , just the same result .
So the question is that how can i copy in such a situation ?
Not quite clear on your requirements, but this will populate the STUDENTS table with the SUM of matching payments in the PAYMENTS table. Is this what you're after?
UPDATE STUDENTS
SET AMOUNT = (SELECT SUM(PAYMENTS.AMOUNTS)
FROM PAYMENTS
WHERE PAYMENTS.RNO = STUDENTS.RNO);
You don't want to add records to the students table (which is what INSERT does) you want to UPDATE existing records.
I am not very familiar with Oracle syntax, but I adapted the answer to this question Update statement with inner join on Oracle to hopefully meet your needs.
UPDATE students
SET students.amount = (SELECT payments.amount
FROM payments
WHERE students.rno = payments.rno)
Related
I have a table A with ID's only and another table B with two columns, ID and Product Number. The ID column in table B has nulls and Product Number has Product Numbers. I would like to update table B with the ID's in column in no specific order just so that the Product Number has ID's.
I have tried to use update but that has not worked, have tried insert but it just adds the ID's in A to the bottom of the list in B. Would like to do this in Microsoft SQL.
SQL code tried:
IF OBJECT_ID('tempdb..#ProductNum') IS NOT NULL DROP TABLE #ProductNum
SELECT ID
INTO #ProductNum
FROM Products
UPDATE [ProductCatalogue] PC
SET
PC.ID = Pn.ID
FROM #ProductNum Pn
INNER JOIN
[ProductCatalogue] PC
ON Pc.ID = Pn.ID
WHERE Pc.ID IS NULL
It sounds a lot like you would be better off having the ID-Column Autoincrement, instead of giving it the IDs from table A. This is already explained in this answer.
In case you actually need the specific IDs from table A, this SO thread might help you.
Solved the issue by creating auto increment columns on each table and called it Row_ID. Then I used Row_ID to join the tables together with some logic provided by #Chris above.
I have a select query which combined several tables. PRODUCTION_ORDER_RESULTS, PRODUCTION_ORDERS and SERVICE_GUARANTY_NEW have common value however STOCKS table does not.
SELECT PR_ORDERS.ARRIVED_CITY,
PR_ORDERS.MONTAJ_DATE,
PR_ORDER_RESULT.TRANSFER_DATE,
PR_ORDERS.P_ORDER_ID,
PR_ORDER_RESULT.P_ORDER_ID,
SG.SALE_CONSUMER_ID,
SG.IS_SERI_SONU,
S.BRAND_ID,
S.PROPERTY
FROM workcube_test_1.PRODUCTION_ORDER_RESULTS PR_ORDER_RESULT,
workcube_test_1.PRODUCTION_ORDERS PR_ORDERS,
workcube_test_1.SERVICE_GUARANTY_NEW SG,
workcube_test_1.STOCKS S
WHERE PR_ORDER_RESULT.P_ORDER_ID = PR_ORDERS.P_ORDER_ID
AND PR_ORDER_RESULT.PR_ORDER_ID = SG.PROCESS_ID
when I run the query, it shows the output as below.
The problem here is there are four data rows returned from PRODUCTION_ORDER_RESULTS, PRODUCTION_ORDERS, SERVICE_GUARANTY_NEW and once I have added the STOCKS table, arrived_city, montaj_date, transfer_date columns are side by side with STOCKS table's rows, but the columns value should be null, not filled with data.
The way I tried is UNION of STOCKS table, however unioned table values are ignored, can not use them in html blocks.
there needs to be at least one more join condition among tables where there's for STOCKS table, I think there might exist such a column STOCK_ID within a table such as PRODUCTION_ORDER_RESULTS in order to join with STOCKS table. I think this should be the reason for multiple returning rows. If there's no common column, then the returning data will be produced as many as the number of records within STOCK table due to existing CROSS JOIN logic within the current query. So rearrange your query as
SELECT PR_ORDERS.ARRIVED_CITY,
PR_ORDERS.MONTAJ_DATE,
PR_ORDER_RESULT.TRANSFER_DATE,
PR_ORDERS.P_ORDER_ID,
PR_ORDER_RESULT.P_ORDER_ID,
SG.SALE_CONSUMER_ID,
SG.IS_SERI_SONU,
S.BRAND_ID,
S.PROPERTY
FROM workcube_test_1.PRODUCTION_ORDER_RESULTS PR_ORDER_RESULT
JOIN workcube_test_1.PRODUCTION_ORDERS PR_ORDERS
ON PR_ORDER_RESULT.P_ORDER_ID = PR_ORDERS.P_ORDER_ID
JOIN workcube_test_1.SERVICE_GUARANTY_NEW SG
ON PR_ORDER_RESULT.PR_ORDER_ID = SG.PROCESS_ID
JOIN workcube_test_1.STOCKS S
ON PR_ORDER_RESULT.STOCK_ID = S.ID
I have two tables
tblData_VendorMasterSSPaymentTerms
tblData_VendorMasterSSPaymentTermsCLM
tblData_VendorMasterSSPaymentTerms contains a field labled VMSSPayTerms_AribaContractID which the values exist in table tblData_VendorMasterSSPaymentTermsCLM
So in table tblData_VendorMasterSSPaymentTermsCLM I want to create a calculated column that counts how many records in tblData_VendorMasterSSPaymentTerms contains the Contract ID for that record.
This is what I have put together so far but it is still coming up with an error
SELECT Count(VMSSPayTerms_AribaContractID)
From tblData_VendorMasterSSPaymentTerms
Where VMSSPayTerms_AribaContractID=VMSSPayTermsCLM_ContractID
Can someone help me identify what I am doing wrong here?
You must join the tables, group by VMSSPayTermsCLM_ContractID and count:
select
c.VMSSPayTermsCLM_ContractID,
count(t.VMSSPayTerms_AribaContractID) counter
from tblData_VendorMasterSSPaymentTermsCLM c inner join tblData_VendorMasterSSPaymentTerms t
on t.VMSSPayTerms_AribaContractID = c.VMSSPayTermsCLM_ContractID
group by c.VMSSPayTermsCLM_ContractID
I need to update multiple rows in a table.
i have table customer and contact
I need to update customer where the linked contact in the contact table has the column city at a certain value.
I can get the rows i need with this query
Select cus.id, con.city
from customer cus, contact con
where cus.contacts_id=con.id
and con.city="MyValue"
I know how to update one table but do not understand how to update the table when the rows are looked up from a different table.
Firstly, please do not use the old JOINs (FROM comma separated tables).
Secondly, here you go:
UPDATE customer SET whatever = 'whatever value'
WHERE contacts_id IN (
SELECT id FROM contact WHERE city="MyValue"
)
So I have two tables, disciplinary and employees. Disciplinary has a column that lists an employee ID (an investigator) and an attempt to import new columns that are drawn from the employee table that yield the employee first and last name based on the existing employee ID from the disciplinary table. Below is the SQL I have so far:
SELECT d.*
, inv.firstName as investigatorFirstName
, inv.lastName as investigatorLastName
FROM det_siu_disciplinary d
LEFT OUTER JOIN cpso_employees inv ON
inv.commissionNumber = d.investigatorEmployeeID
WHERE d.isDelete = 0
This statement successfully adds the joined columns with their new names, but all columns are null. My primary concern is my SQL being flat out wrong, as it's the part of this process that I have least experience with. These statements are part of a much larger query, so if at all possible I'd prefer to not write a new query...adding contingencies would be perfect!
Anyone that assists, thank you in advance :)
the primary key column "CommissionNumber" seems unlikely to me to be the primary key of a table that should contain "EmployeeID" values, in order to join to the foreign key columns of your d table.