If I execute the following code I am able to get desired output; But in Oracle is am facing error :
SELECT NAME
FROM STUD
WHERE ID IN (
SEL DISTINCT TAB1.ID
FROM (
SEL A.ID
, B.SALARY
FROM Fr A
INNER JOIN PACK B ON A.ID = B.ID
) AS TAB1
INNER JOIN (
SEL A.FRIEND_ID
, B.SALARY
FROM Fr A
INNER JOIN PACK B ON A.FRIEND_ID = B.ID
) AS TAB2
ON TAB2.SALARY > TAB1.SALARY
)
;
Facing the below error in oracle :
ORA-00907: missing right parenthesis
You have two errors: SEL instead of SELECT and the usage of table aliases with AS keyword, which is not supported by Oracle
SELECT NAME
FROM STUD
WHERE ID IN (SELECT DISTINCT TAB1.ID FROM
(SELECT A.ID , B.SALARY
FROM
Fr A
INNER JOIN
PACK B
ON
A.ID = B.ID) TAB1
INNER JOIN
(SELECT A.FRIEND_ID , B.SALARY
FROM
Fr A
INNER JOIN
PACK B
ON
A.FRIEND_ID = B.ID
) TAB2
ON
TAB2.SALARY > TAB1.SALARY
)
Besides this, I think you don't need the DISTINCT in the inner query, given that you only use it in an IN clause
Related
Not sure how to rewrite the below query. I’m trying to join table_a to the most recent table_b record. Currently testing for only one ID, but a different criteria on table_a may be added:
Select t.*
from table_a t
left join table_b d on d.id = T.id and d.MOD_DATE IN (SELECT MAX(mod_date) FROM table_b d2 WHERE d2.id = t.id)
where T.id = 123456
Any suggestions?
I think you are looking for something like:
SELECT t.*
FROM table_a t
LEFT JOIN (
SELECT d.*
FROM table_b d
INNER JOIN (
SELECT id
, MAX(mod_date) mod_date_max
FROM table_b d2
GROUP BY id
) db
ON db.id = d.id
AND db.mod_date_max = d.mod_date
) d
ON d.id = T.id
WHERE T.id = 123456
Note that your where clause turns the left join into an inner join.
Also, if you get an error, please post the error message as well, not just its number.
I also found the same could be achieved with the following query:
SELECT * FROM table_a t
WHERE id IN (
SELECT id
FROM (
SELECT id,MAX(MOD_DATE)
FROM table_b
WHERE id = 123456
GROUP BY id
)
)
I would like to add a field to a existing query that doesn't get affected from 'Where function'
For example,
This is the original code....
SELECT SHELL_Payables.PoolNum,
A.[Code], B.[Program] AS Program, A.PayableAmt, C.ReceivableAmt INTO [New Data]
FROM A INNER JOIN B ON A.ID=B.ID
INNER JOIN C ON A.Num=B.Num
WHERE (((A.AccountingPeriod)<=[AccountingYearMonth]));
I would like to add A.PayableAmt again but this time where clause (accountingperiod <= accountingyearMonth) should not be applied to this field...
Any ideas? It would be much appreciated.
To use union and select into, you would need to write your query something like this:
SELECT *
INTO [New Data]
FROM (
SELECT PoolNum
,A.[Code]
,B.[Program] AS Program
,A.PayableAmt
,C.ReceivableAmt
FROM A
INNER JOIN B ON A.ID = B.ID
INNER JOIN C ON A.Num = B.Num
WHERE A.AccountingPeriod <= AccountingYearMonth
UNION
SELECT PoolNum
,A.[Code]
,B.[Program] AS Program
,A.PayableAmt
,C.ReceivableAmt
FROM A
INNER JOIN B ON A.ID = B.ID
INNER JOIN C ON A.Num = B.Num
)
UPDATE
If you want to add another PayableAmt column to the same row, maybe you can join back to the table A something like this:
SELECT t.PoolNum
,a.[Code]
,a.[Program] AS Program
,t.PayableAmt
,a.PayableAmt AS NewPayableAmt
,C.ReceivableAmt
INTO [New Data]
FROM A
LEFT JOIN
(
SELECT
PoolNum
,A.[Code]
,B.[Program] AS Program
,A.PayableAmt
,C.ReceivableAmt
FROM A
INNER JOIN B ON A.ID = B.ID
INNER JOIN C ON A.Num = B.Num
WHERE A.AccountingPeriod <= AccountingYearMonth
) t
ON t.Code = A.Code --assuming this is unique
INNER JOIN B ON A.ID = B.ID
INNER JOIN C ON A.Num = B.Num
Working on Oracle: I am attempting to do an inner self join, with a where clause, then take that result and do a left outer join on it:
(select * from table1 A
inner join
select * from table1 B
on A.id = B.id
where
A.id is not null and B.id is not null) C
left outer join
select * from table2 D
on C.id = D.id
Somehow I am syntactically challenged and can't make this work. Can't seem to find the right syntax anywhere.
Just the put the where clause at the end. The database will get it right:
select *
from table1 A
inner join table1 B on A.id = B.id
left join table2 D on D.id = A.id
where A.id is not null
In this case, we can take advantage of the logical transitive property for your id column joins and where clause.
Your second join needs to be joined to a query add a select * from at the beginning
select * from (select * from table1 A
inner join
select * from table1 B
on A.id = B.id
where
A.id is not null and B.id is not null) C
left outer join
select * from table2 D
on C.id = D.id
I have table A, B and C
I want to return all entries in table A that do not exist in table B and of that list do not exist in table C.
select * from table_A as a
where not exists (select 1 from table_B as b
where a.id = b.id)
this gives me the first result of entries in A that are not in B. But now I want only those entries of this result that are also not in C.
I tried flavours of:
select * from table_A as a
where not exists (select 1 from table_B as b
where a.id = b.id)
AND
where not exists (select 1 from table_C as c
where a.id = c.id)
But that isnt the correct logic. If there is a way to store the results from the first query and then select * from that result that are not existent in table C. But I'm not sure how to do that. I appreciate the help.
Try this:
select * from (
select a.*, b.id as b_id, c.id as c_id
from table_A as a
left outer join table_B as b on a.id = b.id
left outer join table_C as c on c.id = a.id
) T
where b_id is null
and c_id is null
Another implementation is this:
select a1.*
from table_A as a1
inner join (
select a.id from table_A
except
select b.id from table_B
except
select c.id from table_c
) as a2 on a1.id = a2.id
Note the restrictions on the form of the sub-query as described here. The second implementation, by most succinctly and clearly describing the desired operation to SQL Server, is likely to be the most efficient.
You have two WHERE clauses in (the external part of) your second query. That is not valid SQL. If you remove it, it should work as expected:
select * from table_A as a
where not exists (select 1 from table_B as b
where a.id = b.id)
AND
not exists (select 1 from table_C as c -- WHERE removed
where a.id = c.id) ;
Tested in SQL-Fiddle (thnx #Alexander)
how about using LEFT JOIN
SELECT a.*
FROM TableA a
LEFT JOIN TableB b
ON a.ID = b.ID
LEFT JOIN TableC c
ON a.ID = c.ID
WHERE b.ID IS NULL AND
c.ID IS NULL
SQLFiddle Demo
One more option with NOT EXISTS operator
SELECT *
FROM dbo.test71 a
WHERE NOT EXISTS(
SELECT 1
FROM (SELECT b.ID
FROM dbo.test72 b
UNION ALL
SELECT c.ID
FROM dbo.test73 c) x
WHERE a.ID = x.ID
)
Demo on SQLFiddle
Option from #ypercube.Thank for the present;)
SELECT *
FROM dbo.test71 a
WHERE NOT EXISTS(
SELECT 1
FROM dbo.test72 b
WHERE a.ID = b.ID
UNION ALL
SELECT 1
FROM dbo.test73 c
WHERE a.ID = c.ID
);
Demo on SQLFiddle
I do not like "not exists" but if for some reason it seems to be more logical to you; then you can use a alias for your first query. Subsequently, you can re apply another "not exists" clause. Something like:
SELECT * FROM
( select * from tableA as a
where not exists (select 1 from tableB as b
where a.id = b.id) )
AS A_NOT_IN_B
WHERE NOT EXISTS (
SELECT 1 FROM tableC as c
WHERE c.id = A_NOT_IN_B.id
)
I have a properly working query
select A.*, B.*
from A left join B on A.id = B.id and B.country = 'USA'
Now with left join I can put only 1 condition ( A.id = B.id). So I have to put B.country = 'USA' part somewhere else. Is there any workaround? I can use subqueries.
Update: I have to work with a framework (DBIx::Class) where I have defined single condition ( Id matching) in Schema and it is not straightforward to alter that.
You could break B into a subquery and filter there instead of at the join
SELECT A.*, B.*
FROM A
LEFT JOIN (
SELECT *
FROM B
WHERE COUNTRY = 'USA'
) B
ON A.ID = B.ID