asked on
pl/sql XMLTable INVALID_NUMBER error
I'm relatively new to pl/sql and xml.
I have an sql query that uses XMLTable to shred transaction details. When I run the query I get an INVALID_NUMBER error. If I comment out the 'Amount' element the query runs, so I'm assuming the problem lies here. I have no control over the content, so can't fix it. Is there any way to alter the XMLTable to either ignore the row with the error or do a decode to substitute zero when an invalid_number is found?
SELECT
so.tranId
, CHARGES.*
FROM mytable1 so,
XMLTABLE('//Charge' PASSING xmltype(so.xmlClob)
COLUMNS "GeneralChargeID" NUMBER PATH 'GeneralChargeID',
"Name" VARCHAR2(255) PATH 'Name',
"Status" VARCHAR2(25) PATH 'Status',
"Quantity" NUMBER PATH 'Quantity',
"Amount" NUMBER(10,2) PATH 'Amount',
"CreditFlag" CHAR(1) PATH 'CreditFlag'
) as CHARGES
I tried calling this statement, but the same error was thrown.
alter session set nls_numeric_characters=". ";
I have an sql query that uses XMLTable to shred transaction details. When I run the query I get an INVALID_NUMBER error. If I comment out the 'Amount' element the query runs, so I'm assuming the problem lies here. I have no control over the content, so can't fix it. Is there any way to alter the XMLTable to either ignore the row with the error or do a decode to substitute zero when an invalid_number is found?
SELECT
so.tranId
, CHARGES.*
FROM mytable1 so,
XMLTABLE('//Charge' PASSING xmltype(so.xmlClob)
COLUMNS "GeneralChargeID" NUMBER PATH 'GeneralChargeID',
"Name" VARCHAR2(255) PATH 'Name',
"Status" VARCHAR2(25) PATH 'Status',
"Quantity" NUMBER PATH 'Quantity',
"Amount" NUMBER(10,2) PATH 'Amount',
"CreditFlag" CHAR(1) PATH 'CreditFlag'
) as CHARGES
I tried calling this statement, but the same error was thrown.
alter session set nls_numeric_characters=". ";
Oracle Database
Last Comment
fredjonzeTwo
ASKER
I already tried the VARCHAR2 route but can't spot the problem. I don't have permissions to create a function (read-only access).
and the cause is really 'bad' data then you have to leave the VARCHAR2 definition and you can use the same function for the decode
DECODE(IS_NUMBER(AMOUNT),'
DECODE(IS_NUMBER(AMOUNT),'
ASKER
If I can't create a function (read only rights) is there an alternate decode statement I can use to substitute the bad value with zero?
I presume you can execute a pl/sql-block
DECLARE
function is_number(p_in varchar2) return varchar2
is
n1 number(10,2);
rsl varchar2(1);
begin
begin
n1 := to_number(p_in);
rsl := 'Y';
exception when others then
rsl := 'N';
end;
RETURN rsl;
end;
BEGIN
FOR R1 IN (SELECT .. your select) LOOP
if IS_NUMBER(r1.amount) = 'Y' THEN
NULL;
else
DBMS_OUTPUT .PUT_LINE('bad value >' || r1.amount || '<');
-- and maybe some keyvalues
END IF;
END LOOP;
END;
DECLARE
function is_number(p_in varchar2) return varchar2
is
n1 number(10,2);
rsl varchar2(1);
begin
begin
n1 := to_number(p_in);
rsl := 'Y';
exception when others then
rsl := 'N';
end;
RETURN rsl;
end;
BEGIN
FOR R1 IN (SELECT .. your select) LOOP
if IS_NUMBER(r1.amount) = 'Y' THEN
NULL;
else
DBMS_OUTPUT .PUT_LINE('bad value >' || r1.amount || '<');
-- and maybe some keyvalues
END IF;
END LOOP;
END;
ASKER
The pl/sql needs to be inserted into an MS SQL Server SSIS data source, so I'm limited to just using a direct query.
in http://www.arikaplan.com/oracle/ari021000.html
i found an alternative:
and length(translate(trim(AMOU
i found an alternative:
and length(translate(trim(AMOU
ASKER
Now I'm really confused. When I add the where clause
where length(translate(trim(AMOU
No rows are returned.
where length(translate(trim(AMOU
No rows are returned.
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where length(translate(trim(AMOU
'+300+' would return 0
'100.888,333.2' would return 0
Maybe the regexp of ststuber brings easy relief
'+300+' would return 0
'100.888,333.2' would return 0
Maybe the regexp of ststuber brings easy relief
ASKER
I ran a quick query in RazorSQL with success. I'm currently running it in SSIS to see if that will also work. It just finished with success.
While I was waiting for SSIS I did some quick experimenting to see why the length/translate clause didn't work. The culprit? Two rows that had only a minus sign with no number. Apparently Oracle sees a lone minus sign as text instead of a sign. I could simply have a clause to filter out minus...but I think you're case statement function will handle other unknown values much bettter.
I've been yanking my hair for two days trying to figure out XMLTable and INVALID_NUMBER. Thanks...and an excellent for you!
While I was waiting for SSIS I did some quick experimenting to see why the length/translate clause didn't work. The culprit? Two rows that had only a minus sign with no number. Apparently Oracle sees a lone minus sign as text instead of a sign. I could simply have a clause to filter out minus...but I think you're case statement function will handle other unknown values much bettter.
I've been yanking my hair for two days trying to figure out XMLTable and INVALID_NUMBER. Thanks...and an excellent for you!
ASKER
A great suggestion that solves a number of problems with unexpected data in XMLTable.
Inspect the results for finding the reason.
If the number of resulting rows is too large to inspect, create a function
create or replace function is_number(p_in varchar2) return varchar2
is
n1 number(10,2);
rsl varchar2(1);
begin
begin
n1 := to_number(p_in);
rsl := 'Y';
exception when others then
rsl := 'N';
end;
RETURN rsl;
end;
and select rows
AND IS_NUMBER(AMOUNT) <> 'Y'