Table 1:
ID Values
1 1
2 2
3 3
4 4
Table 2:
ID Values
1 1
1 2
1 2
2 4
4 5
4 6
I need a result to be:
ID Table 1 Values Table 2 Values
1 1 1
2 2 4
3 3 *This is blank because Table 2 doesn't have ID 3
4 4 5
4 4 6
Notice the Exclusion of the rows in table 2 Where the Values are duplicated ( ID 1 and Value 2). Yet the 2 rows for ID 4 because both values from Table 2 for ID 4 do not have duplicity.
So this is a left join and I want only the Value from table 2 where that Value is not duplicated AND the ID matches an ID from Table 1.
Use a CTE over table 2, and then use that as the right side of your left join:
WITH t2 AS (
SELECT ID, Values FROM [Table 2]
GROUP BY ID, Values
HAVING COUNT(*) = 1
)
SELECT t1.ID, t1.Values [Table 1 Values], t2.Values [Table 2 Values]
FROM [Table 1] t1
LEFT JOIN t2 ON t1.ID = t2.ID
Related
I've been struggling with this problem.
I have 2 populated tables and a third empty one and I would like to populate the third with data from the other two. Correlate values
The idea is to assign every single ID from the 1st table to entries (several) found in the 2nd table that respect the condition where DestinedUserTypeID should be equal to UserTypeID),
Table 1
Id
UserName
UserTypeID
1
Bla
1
2
Ble
2
3
Bli
3
Table 2
ID
TaskName
DestinedUserTypeID
1
Task A
1
2
Task B
1
3
Task C
1
4
Task D
2
DESIRED TABLE, Table 3
ID
UserID
TaskID
1
1
1
2
1
2
3
1
3
...
Insert into Table3 ([UserId],[TaskID])
SELECT
Id,
(SELECT [Id] FROM [Table2] t2
WHERE [Id] <= 5 AND [DestinedUserTypeId] = 1)
FROM t1 WHERE [UserTypeId] = 1
Thank you!
You can do it with a simple join linked to your table 1 and 2 and just insert into your table3
SELECT
u.id,
t.id,
from
table1 as u inner join
table2 as t on u.userTypeId = t.DestinedUserTypeID
I have a table with records of the same type with ID's and a grouping. I need to update the id's of table 1 into table 2 based on the record id from largest to smallest using the position.
Table 1
ID
Group
Name
1
A
Apple
2
A
Apple
3
B
Apple
4
B
Apple
Table 2
ID
recordid
position
group
1
1
250
A
2
2
350
A
3
null
450
A
4
null
550
A
5
3
250
B
6
4
350
B
7
null
450
B
8
null
550
B
update table2
set recordid=T1.ID
From Table1 T1
join Table2 T2 on T2.Group=T1.Group
This isn't distinct so I don't think it's right, but I can't figure it out.
where ?????
the problem is you have multiple Id per group , so you have to choose one :
update table2
set recordid= ( select top 1 T1.ID
From Table1 T1
join Table2 T2 on T2.Group=T1.Group
)
where recordid is null
I have these 3 tables
Table 1:
id_Table1 field_table1_1 field_table1_2
1 A B
2 C D
3 E F
Table 1:
id_Table2 field_table2_1 field_table2_2
4 G H
5 I J
List item
Table 3:
id_Table3 id_Table1 id_Table2
1 1 4
2 1 5
3 2 5
So table 3 holds the relation between table 1 and 2.
What I want to do, is with a query, get all the fields in the table 1, plus one extra field that contains all the ids of the table 2 separated by coma.
So the result should be something like this:
id_Table1 field_table1_1 field_table1_2 id_Table2
1 A B 4, 5
2 C D 5
3 E F
One option use a lateral join and string_agg():
select t1.*, x.*
from table1 t1
outer apply (
select string_agg(t3.id_table2) id_table2
from table3 t3
where t3.id_table1 = t1.id_table1
) x
There is no need to bring table2 to get the results you want.
I have three tables which look like those:
TABLE 1
id j_id
1 1
2 2
3 3
TABLE 2
id j_id table1_id
1 57 1
2 84 1
3 1 1
4 9 2
5 2 2
and every j has a value in a third table
id value
1 1abc
2 2bcd
3 3abc
57 57abc
84 84abc
9 9abc
I am trying to write a query which will join table 1 and table 2 and use the J value from the third table instead of the j_id, but the problem is that I want to use the j value from the second table if it exists and otherwise use the value from the first table.
in order the make it clearer this is my query result without using the third table:
tbl1.j_id tbl2.j_id
1 1
1 84
1 57
2 2
2 9
3 null
I want the end query result to use the second table's j value unless it is null:
tbl1.j_id tbl2.j_id j_id
1 1 1abc
1 84 84abc
1 57 57abc
2 2 2abc
2 9 9abc
3 null 3abc
(Question and title edits are more than welcome, weren't that sure how to phrase them..)
You can simply JOIN to table3 on the COALESCE of table2.j_id and table1.j_id:
SELECT t1.j_id AS t1_j_id, t2.j_id AS t2_j_id, t3.value
FROM table1 t1
LEFT JOIN table2 t2 ON t2.table1_id = t1.id
JOIN table3 t3 ON t3.id = COALESCE(t2.j_id, t1.j_id)
Output:
t1_j_id t2_j_id value
1 1 1abc
1 57 57abc
1 84 84abc
2 2 2bcd
2 9 9abc
3 null 3abc
Demo on dbfiddle
One solution is to left join table3 twice:
select
t1.j_id,
t2.j_id,
coalesce(t31.value, t32.value) j_value
from
table1 t1
left join table2 t2 on t2.table1_id = t1.id
left join table3 t31 on t31.id = t2.j_id
left join table3 t32 on t32.id = t1.j_id
id idtest result
1 1 2
1 2 1
1 3 2
2 1 2
2 2 1
2 3 1
3 1 1
3 2 2
3 3 1
Would like to get all the rows with the same IDs that matches the condition.
For example: get all the rows with the same id where (idTest=2 and result=1) and (idTest=3 and result=2)
result:
id idtest result
1 1 2
1 2 1
1 3 2
What would be the query???
Thanks!
Do you mean this?
SELECT * FROM table WHERE id = 1 and (result = 1 OR result = 2)
How about his:
SELECT *
FROM table WHERE (idTest = 2 OR idTest = 3) AND (result=1 OR result=2)
ID test res
1 1 2
1 2 1
1 3 2
2 1 1
2 2 2
2 3 2
3 1 1
3 2 2
3 3 1
Sorry. This would be my table. and Would like to get all the rows with the same IDs that matches the condition. For example: get all the rows with the same id where (test=2 and res=1) and (test=3 and res=2)
Result:
ID test res
1 1 2
1 2 1
1 3 2
What would be the query in order to get the three rows ?? Thanks!
You can use EXISTS:
SELECT id, idTest, result
FROM dbo.TableName t
WHERE EXISTS
(
SELECT 1 FROM dbo.TableName t2
WHERE t.id = t2.id
AND(
( t2.idTest=2 AND t2.result=1 )
OR
( t2.idTest=3 AND t2.result=2 )
)
)
Demo
Update: result is different:
id idTest result
1 1 2
1 2 1 <-- satisfies your condition
1 3 2 <-- satisfies your condition
2 1 2
2 2 1 <-- satisfies your condition
2 3 1
So either my understanding was incorrect or your expected result. I have also all ID=2 because the second id-2 row matches the condition.
You seem to want all rows for id's that have rows with that particular combination. What about:
with ids as (
select id
from mytable
where (idTest=2 and result=1) or (idTest=3 and result=2)
group by id
having count(id) = 2
)
select mytable.* from mytable
inner join ids
on ids.id = mytable.id
This gets a list of id's where both conditions apply, and then gets all rows for those id's.
SqlFiddle
SELECT *
FROM table t1
WHERE EXISTS (SELECT 1 FROM table WHERE id = t1.id AND idtest = 2 AND result = 1)
AND EXISTS (SELECT 1 FROM table WHERE id = t1.id AND idtest = 3 AND result = 2)
Just keep adding more AND EXISTS if you need more
Or you can use IN if it makes more sense to you
SELECT *
FROM table
WHERE id IN (SELECT id from table where idtest = 2 and result = 1)
AND id IN (SELECT id from table where idtest = 3 and result = 2)
do you need a method that treats the condition(s) in a generic way, like if they're values in another table? Or do you only need a way to pull results of two independent conditions?
If the latter, then this should work:
SELECT
id
FROM
(SELECT id
FROM tbl
WHERE idTest=2 AND RESULT=1) cond1 INNER JOIN
(SELECT id
FROM tbl
WHERE idTest=3 AND RESULT=2) cond2 ON
cond1.id = cond2.id
otherwise, if your conditions are generic and stored in a table, you'd need something like:
SELECT
id
FROM
(SELECT id
FROM tbl FULL OUTER JOIN conditions c
WHERE c.isUseMe = 1 AND c.SEQ = 1 AND idTest=c.idTestVal AND result=c.resultVal) cond1 INNER JOIN
(SELECT id
FROM tbl FULL OUTER JOIN conditions c
WHERE c.isUseMe = 1 AND c.SEQ = 2 AND idTest=c.idTestVal AND result=c.resultVal) cond2 ON
cond1.id = cond2.id
if the 4 values are passed in as parameters, you'd need something like:
SELECT
id
FROM
(SELECT id
FROM tbl
WHERE idTest=#idTestVal1 AND result=#resultVal1) cond1 INNER JOIN
(SELECT id
FROM tbl
WHERE idTest=#idTestVal2 AND result=#resultVal2) cond2 ON
cond1.id = cond2.id