Oracle procedure is griping about a select query that runs fine outside of the procedure - sql

Question

WITH Q (L) AS
(
SELECT 1 FROM DUAL
UNION ALL
SELECT L + 1
FROM Q
WHERE L < 99
)
SELECT MIN(L)
INTO next_priority
FROM Q
LEFT JOIN gxrdird on gxrdird_priority = L
and gxrdird_pidm = aPidm_in and gxrdird_ap_ind = 'Y'
WHERE L NOT IN (select gxrdird_priority
from gxrdird where gxrdird_pidm = aPidm_in);
This query returns the results that I want when run manually. I'm trying to put it in a package procedure, but I get:
51/5 PL/SQL: SQL Statement ignored
55/22 PL/SQL: ORA-00932: inconsistent datatypes: expected NUMBER got -
That corresponds to the line "SELECT L + 1" on the column L is in. Is there any way to declare L as a NUMBER specifically, inside the with clause? I've been googling for an hour, and the few examples of with clauses I can find that have parameters do not declare them as any type.
This is driving me nuts, and there's no simpler query I can come up with that gives me the correct results.
Edit, adding context:
CURSOR xxx_cur IS
SELECT ROWID, GXRDIRD_PRIORITY
FROM GXRDIRD
WHERE GXRDIRD_PIDM = aPidm_in
AND GXRDIRD_AP_IND = 'A'
AND GXRDIRD_ATYP_CODE IS NULL
AND GXRDIRD_ADDR_SEQNO IS NULL
ORDER BY GXRDIRD_PRIORITY DESC;
xxx_rec xxx_cur%ROWTYPE;
next_priority NUMBER;
BEGIN
OPEN xxx_cur;
LOOP
FETCH xxx_cur INTO xxx_rec;
EXIT WHEN xxx_cur%NOTFOUND;
-- Here we should update that particular row, but we can't just increment it.
WITH Q (L) AS
(
SELECT 1 FROM DUAL
UNION ALL
SELECT L + 1
FROM Q
WHERE L < 99
)
SELECT MIN(L)
INTO next_priority
FROM Q
LEFT JOIN gxrdird on gxrdird_priority = L and gxrdird_pidm = aPidm_in and gxrdird_ap_ind = 'Y'
WHERE L NOT IN (select gxrdird_priority from gxrdird where gxrdird_pidm = aPidm_in);
-- The above query found the lowest-numbered unused priority, and now we'll set this record to that.
UPDATE GXRDIRD SET GXRDIRD_PRIORITY = next_priority WHERE ROWID = xxx_rec.ROWID;
-- If the above record was originally 7 and the lowest was 15, now 7 is free and will be used if we loop
-- again.
DBMS_OUTPUT.PUT_LINE(OBJECT_NAME || '.P_RESEQUENCE_INACTV_ACCNTS - Changed priority ' || xxx_rec.GXRDIRD_PRIORITY || ' into ' || next_priority);
END LOOP;
Line 51: WITH Q (L) AS
Line 55: SELECT L + 1

Answer 1

It looks like you're trying to generate dummy rows with consecutive numbers. My preferred way of doing that would be:
WITH Q AS
(
SELECT rownum AS l
FROM dual
CONNECT BY level < 100
)
SELECT MIN(L)
INTO next_priority
FROM Q
...
Please try if this works for you.