SQL IN "Too many values" - sql

Question

I have a problem I want to get all of the DISTINCT CLIENTIDs in my LCMINV table in which the CLIENTID is in LAAPPL's CLIENTID and LACOBORW's COBORWID and also the APPLICATION STATUS is either 'PEN' OR 'REC'.
Here is my table:
++++++++++++++++++++++++++++++++++++++++++++
+ LAAPPL + LACOBORW + LCMINV +
++++++++++++++++++++++++++++++++++++++++++++
+ CLIENTID + APPLNO + CLIENTID +
+ APPLNO + COBORWID + +
+ STATUS + + +
++++++++++++++++++++++++++++++++++++++++++++
Here is my SQL Query I've done so far:
SELECT DISTINCT(CLIENTID)
FROM LCMINV
WHERE CLIENTID
IN (SELECT CLIENTID, COBORWID
FROM LAAPPL
LEFT OUTER JOIN LACOBORW ON LACOBORW.APPLNO = LAAPPL.APPLNO
WHERE STATUS = 'PEN' OR STATUS = 'REC')
Can it be done in one query or do I need separate queries? I tried my query above an I am getting an error "Too many values"

Answer 1

I would probably use a CTE to break the query up into smaller parts, and then use INNER JOINs to combine the tables. Since You query LAAPPL, I put both columns used into a single subquery, and then join on each column in the next CTE.
It would look something like this:
WITH CTE_LAAPPL AS
(
SELECT
CLIENTID
,APPLNO
FROM LAAPPL
WHERE STATUS IN ('PEN','REC')
)
,CLIENTIDs AS
(
SELECT DISTINCT
l.COBORWID AS CLIENTID
FROM CTE_LAAPPL c
INNER JOIN LACOBORW l ON l.APPLNO = c.APPLNO
UNION
SELECT DISTINCT
l.CLIENTID
FROM CTE_LAAPPL c
INNER JOIN LCMINV l ON l.CLIENTID = c.CLIENTID
)
SELECT
c.CLIENTID
,c.NAME
FROM LCCLIENT c
INNER JOIN CLIENTIDs i ON i.CLIENTID = c.CLIENTID
ORDER BY NAME

Answer 2

I think you just want:
SELECT DISTINCT i.CLIENTID
FROM LCMINV i
WHERE i.CLIENTID IN (SELECT a.CLIENTID
FROM LAAPPL a JOIN
LACOBORW c
ON c.APPLNO = a.APPLNO
WHERE a.STATUS IN ('PEN', 'REC')
);
I'm not really sure why you are joining in LACOBORW. You can probably remove that logic.

Answer 3

I would recommend left joins to get the data you need. Unfortunately, your question 3 does not seem to fit your model because your LCMINV table does not seem to have an id that matches to another table and I cannot understand where LCMINV.CLIENTID should be related to in another context. This works in MSSQL - cannot be sure about Oracle.
--this statement will give you all the names that have a status in the where clause
--you will receive NULL if there is no Co-BorrowerID
select
a.name
, b.applno
, b.status
, c.coborwid
from
lcclient a left join
laapl b on a.clientid = b.clientid left join
lacoborw c on b.applno = c.applno
where
b.status in ('PEN', 'REC')
order by
a.name