- ORA-01407: cannot update ("PSOWNER"."PS_VCHR_LINE_STG"."CLASS_FLD") to NULL Failed SQL stmt: UPDATE - peoplesoft

Question

Error Message:- ORA-01407: cannot update ("PSOWNER"."PS_VCHR_LINE_STG"."CLASS_FLD") to NULL Failed SQL stmt: UPDATE
When I am generating the report it is saying NO Success in Peoplesoft.
Below is the code for the Update statement.
Please help me how to overcome this problem.
UPDATE %Table(VCHR_LINE_STG) A
SET A.CLASS_FLD = (
SELECT SUBSTR(DCP_FLD49
,3
,4)
FROM %Table(DCP_AP11_TMP2)
WHERE VCHR_BLD_KEY_C1 = A.VCHR_BLD_KEY_C1
AND DCP_FLD34= A.VOUCHER_LINE_NUM),A.BUSINESS_UNIT =(
SELECT D.CF_ATTRIB_VALUE
FROM %Table(CF_ATTRIB_TBL) D
, %Table(DEPT_TBL) E
WHERE ( D.EFFDT = (
SELECT MAX(D_ED.EFFDT)
FROM %Table(CF_ATTRIB_TBL) D_ED
WHERE D.SETID = D_ED.SETID
AND D.CHARTFIELD_VALUE = D_ED.CHARTFIELD_VALUE
AND D_ED.EFFDT <= SYSDATE)
AND E.EFFDT=D.EFFDT
AND D.CHARTFIELD_VALUE = (
SELECT M.DCP_FLD41
FROM %Table(DCP_AP11_TMP2) M
WHERE M.VCHR_BLD_KEY_C1 = A.VCHR_BLD_KEY_C1
AND M.DCP_FLD34= A.VOUCHER_LINE_NUM)
AND D.SETID = E.SETID
AND D.SETID = 'DCPID'
AND D.CF_ATTRIBUTE='AP_BUSN_UNIT'
AND E.EFFDT = (
SELECT MAX(E_ED.EFFDT)
FROM %Table(DEPT_TBL) E_ED
WHERE E.SETID = E_ED.SETID
AND E.DEPTID = E_ED.DEPTID
AND E_ED.EFFDT <= SYSDATE)
AND E.DEPTID = D.CHARTFIELD_VALUE
AND E.SETID = D.SETID
AND E.EFF_STATUS='A')),A.BUSINESS_UNIT_GL=(
SELECT D.CF_ATTRIB_VALUE
FROM %Table(CF_ATTRIB_TBL) D
, %Table(DEPT_TBL) E
WHERE ( D.EFFDT = (
SELECT MAX(D_ED.EFFDT)
FROM %Table(CF_ATTRIB_TBL) D_ED
WHERE D.SETID = D_ED.SETID
AND D.CHARTFIELD_VALUE = D_ED.CHARTFIELD_VALUE
AND D_ED.EFFDT <= SYSDATE)
AND E.EFFDT=D.EFFDT
AND D.CHARTFIELD_VALUE = (
SELECT M.DCP_FLD41
FROM %Table(DCP_AP11_TMP2) M
WHERE M.VCHR_BLD_KEY_C1 = A.VCHR_BLD_KEY_C1
AND M.DCP_FLD34= A.VOUCHER_LINE_NUM)
AND D.SETID = E.SETID
AND D.SETID = 'DCPID'
AND D.CF_ATTRIBUTE='GL_BUSN_UNIT'
AND E.EFFDT = (
SELECT MAX(E_ED.EFFDT)
FROM %Table(DEPT_TBL) E_ED
WHERE E.SETID = E_ED.SETID
AND E.DEPTID = E_ED.DEPTID
AND E_ED.EFFDT <= SYSDATE)
AND E.DEPTID = D.CHARTFIELD_VALUE
AND E.SETID = D.SETID
AND E.EFF_STATUS='A'))
WHERE EXISTS (
SELECT 'X'
FROM %Table(DCP_AP11_TMP2)
WHERE VCHR_BLD_KEY_C1 = A.VCHR_BLD_KEY_C1
AND VOUCHER_LINE_NUM = A.VOUCHER_LINE_NUM)
Above is the code for the Update statement in App engine.
Please help me how to overcome this problem.
Thanks in Advance.

Answer 1

The sub-selects populating each field are not returning values so the database is trying to update the field to NULL. In PeopleSoft null values are not allowed in character fields. A field with no value needs to be set to a single space, like ' '.
You will need to wrap each sub-select with a COALESCE() function, with a non-null alternative option if the sub-select does not return a value. Character fields need to be set to ' ', numbers to 0 if no values returned. Date fields can be null. Here is an example using the first few lines of the code provided.
UPDATE %Table(VCHR_LINE_STG) A
SET A.CLASS_FLD =
COALESCE(
(SELECT SUBSTR(DCP_FLD49,3,4)
FROM %Table(DCP_AP11_TMP2)
WHERE VCHR_BLD_KEY_C1 = A.VCHR_BLD_KEY_C1
AND DCP_FLD34= A.VOUCHER_LINE_NUM), ' ')
, A.BUSINESS_UNIT_GL=(SELECT
...