I have two tables in access
table1 (name,nat) 16000 records
table2 (v_name,id) 189000 records
I want to update nat in table1 with id from table2. tried the following
UPDATE table1 SET nat = (SELECT table2.ID FROM table2 INNER JOIN table1 ON table2.V_name = table1.Name);
got the following
error: Operation must use an updateable query
You can try to use UPDATE .... JOIN in access
UPDATE table1 t1
INNER JOIN table2 t2
ON t2.V_name = t1.Name
SET t1.nat = t2.ID
Related
I have two tables with similar column values for columns "name" and "regis". One table is already filled with values, the other has only values for "name". How do i get "regis" values from table1 into table2 based on same column values?
I tried something like this
INSERT INTO table2 (regis)
SELECT table1 (regis)
WHERE table2.name = table1.name
Please try:
update table2 set regis = (select regis from table1 where table1.name=table2.name);
see the whole sample on:
https://www.db-fiddle.com/f/3jC8PGeZZEuty3XVq8gdzz/9
I think, what you are after is insert when name not found in table2 or update if its found in both tables.
INSERT INTO TABLE2 (regis)
SELECT t1.REGIS FROM TABLE1 as t1
LEFT OUTER JOIN TABLE2 as t2 on t2.name = t1.name
WHERE t2.name is null
You can update table2 using the statement like below:
update t2
set t2.regis = t1.regis
from table2 as t2
inner join table1 as t1 on t1.name = t2.name
If you are using SQL Server, then you can use merge statement to either insert or update in one step.
You need to use table2 as join in your select statement.
INSERT INTO table2 (regis)
SELECT table1.regis FROM Table1 INNER JOIN Table2 on table1.name = table2.name
I have 2 tables 'table1' and 'table2'.
table1 has 10,000 records and table2 has 5,000 records.
Both tables have "RECORD_ID" column. All RECORD_ID's that are in table2 can be found in table1.
I want to UPDATE the "PRICE" column of table1 based on the "RECORD_ID" column of table2.
update table1 set PRICE = table2.PRICE where RECORD_ID = table2.RECORD_ID
I got this error message:
SQL0206N "table2.PRICE" is not valid in the context where it is used
SQLSTATE=42703
I am using DB2.
UPDATE table1 SET table1.price = (SELECT table2.price FROM table2 WHERE table2.record_id = table1.record_id)
Try this:
UPDATE table1 f1
SET f1.price =(
SELECT f2.price
FROM table2 f2
WHERE f2.record_id = f1.record_id
)
WHERE exists
(
SELECT f2.price
FROM table2 f2
WHERE f2.record_id = f1.record_id
)
You have to use a join like this:
UPDATE
Table1
SET
Table1.Column = T2.Column
FROM
Table1 T1
INNER JOIN
Table2 T2
ON
T1.PK = T2.FK;
I have three tables and I have to write one query to update table 1 row from table 3 and the only matching columns I have is in table 2.
Table 1 which has incorrect data:
Table 3 has the correct data:
I did try to write a query and execute it but it gives me an error saying there are too many rows too select which is true I do have many rows to correct but it still wouldn't correct. What do you think I should do. This is my query so far.
UPDATE Table1
SET Table1.Number = (SELECT Table3.Number
FROM Table2
FULL OUTER JOIN Table1 ON Table1.ID = Table2.ID
FULL OUTER JOIN Table3 ON Table3.Signin = Table2.Signin
WHERE (Table2.ID = Table1.ID)
AND (Table1.Number = 'xxx'))
WHERE (Tale1.Number = 'xxx')
In Where clause of JOIN query need to modify as multiple records are generating by inappropriate condition.Try to use Table3 components instead of using Table1 in joining query where clause.
UPDATE Table1
SET Table1.NUMBER = (SELECT table3.NUMBER FROM Table1 FULL OUTER JOIN Table2
ON Table1.ID = Table2.ID
FULL OUTER JOIN Table3
ON Table2.SIGNIN = Table3.SIGNIN
WHERE Table3.SIGNIN = 100) // This is the point where you need to modify your code
WHERE Table1.ID = 1;
ONLINE DEMO HERE
It actually worked after I removed this line from my query.
FULL OUTER JOIN Table1 ON table1.ID = Table2.ID
Thanks for the help.
You are fairly close. When doing the update though unless you are wanting to clear value for t1.number when a record is not matched in t3, you will want to use INNER JOIN. FULL OUTER JOIN would mean you are trying to update rows in t1 that don't exist but a LEFT JOIN you would update t1.number to NULL if a record in t3 doesn't exist.
UPDATE t1
SET t1.Number = t3.Number
FROM
Table1 t1
INNER JOIN Table2 t2
ON t1.Id = t2.Id
INNER JOIN Table3 t3
ON t2.Signin = t.3.Signin
WHERE
t1.number <> t3.number
--Or if you have nulls something like
--ISNULL(t1.number,'xxx') <> ISNULL(t3.number,'xxx')
-- if you only want to update when t1.number = 'xxx' then
--t1.number = 'xxx'
t1,t2,t3 are table aliases that I created by adding the alias after table name. By using join syntax rather than a sub select you simplify your were conditions. In sql-sever if more than 1 record in t2 & t3 match it will select one row randomly in the case of a one to many relationship. If you want a specific record when not one to one relation you can use window functions and common table expressions (cte) to limit t3 to the exact record you want to use.
I have this SQL...
UPDATE table1 t1
SET (t1.wert) =
(select t2.bezeichnung from table2 t2
where t1.id = t2.cpbezeichnung)
where t1.id = t2.cpbezeichnung
... which I cant run because it says me that it doesnt know t2.cpbezeichnung in line #5.
How can I fix it?
Table with alias t2 is not defined for UPDATE query, so it's clearly not known at line 5. Table t2 is defined only inside subquery on lines 3 and 4.
What exactly are you trying to achieve with condition on line 5?
If do you want prevent setting NULL into t1.wert for rows where there is no appropriate record in table t2, then you need to replace condition on line 5
UPDATE table1 t1
SET (t1.wert) =
(select t2.bezeichnung from table2 t2 where t1.id = t2.cpbezeichnung)
where t1.id IN (SELECT t2.cpbezeichnung from table2)
This will set values in t1.wert only for records where t1.id exists in t2.cpbezeichnung.
The t2 alias (along with table2) is only visible in the subquery. My guess is that you want
UPDATE table1 t1
SET t1.wert = (select t2.bezeichnung
from table2 t2
where t1.id = t2.cpbezeichnung)
where exists (select 1
from table2 t2
where t1.id = t2.cpbezeichnung)
which updates every row where there is a match between the two tables. If that's not what you want, posting a test case would be helpful.
When using correlated subqueries you cannot use an alias from the inner query in the outer query.
The outer query knows nothing about the inner query except its results.
Ref
You will have to use a Inner join on the two tables.
Something like
UPDATE table1 t1 INNERJOIN table t2 ON your_table_condition SET t1.wert = (select t2.bezeichnung from t2 where t1.id = t2.cpbezeichnung) where t1.id = t2.cpbezeichnung
I've got two tables set up, here is a basic example of the setup:
Table1 Table2
____________ ____________
|id |date | |id |stuff |
|_____|______| |_____|______|
so they both have an id column. I'm trying to update table1 in this fashion:
update Table1
set [date] = (select [stuff]
from Table2
where Table2.id = id)
However, in the line where Table2.id = id, it uses the id field from Table2 instead of using the one from Table1.
When I try where Table2.id = Table1.id, I get an error. How can I keep tracking Table1's id per row to use in the subquery for Table2?
You need to reference the id inside the inner query to table 1.
This should solve your problem:
update Table1
set Table1.[date] = (select Table2.[stuff]
from Table2
where Table2.id = Table1.id)
Try this using Join:
Update t1 set t1.[date] = t2.[stuff]
from Table1 t1
join Table2 t2 on t1.id = t2.id
here's the join version,
update a
set a.[date] = b.[stuff]
FROM Table1 a
INNER JOIN Table2 b
ON a.ID = b.ID