Topic: SQL*Plus and PL/SQL >> Clob in Trigger
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| milindb |
Posted: Feb 08, 2007 02:15:32 AM |
Total Post: 2
Joined: Aug, 2006
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Hi All,
I have created row level insert trigger on REPORT table. It inserts the newly inserted record in REPORT_HISTORY table having same structure. REPORT table contains column Report_Query having CLOB datatype. Trigger works fine when length of CLOB is less than 4000. When it exceeds, trigger is unable to insert record in REPORT_QUERY column. Emply record for the CLOB column goes into it.
Here is the structure of tables.
REPORT:
REPORT_ID NUMBER,
NAME VARCHAR2(255),
DESCRIPTION VARCHAR2(255),
HTML_EXPORT NUMBER,
REPORT_QUERY CLOB,
DATASOURCE_ID NUMBER
REPORT_HISTORY:
Exactly same as table REPORT. One extra column REPORT_HIST_ID which is sequence for primary key.
TRIGGER:
CREATE OR REPLACE TRIGGER Report_History_Trigg
AFTER INSERT OR UPDATE ON REPORT
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
DECLARE
o_OutputStatus NUMBER;
o_OutputMessage VARCHAR2(1000);
v_ErrorFlag NUMBER;
v_REPORT_HIST_ID NUMBER;
BEGIN
v_ErrorFlag := 1;
SELECT REPORT_HIST_ID_SEQ.NEXTVAL INTO v_REPORT_HIST_ID FROM DUAL;
IF INSERTING THEN
INSERT INTO REPORT_HISTORY
(
REPORT_HIST_ID ,
REPORT_ID ,
NAME ,
DESCRIPTION ,
HTML_EXPORT ,
REPORT_QUERY ,
DATASOURCE_ID
)
VALUES
(
v_REPORT_HIST_ID,
:NEW.REPORT_ID ,
:NEW.NAME ,
:NEW.DESCRIPTION ,
:NEW.HTML_EXPORT ,
:NEW.REPORT_QUERY,
:NEW.DATASOURCE_ID
);
END IF;
v_ErrorFlag := 2;
IF UPDATING THEN
IF TRIM(:NEW.REPORT_QUERY) <> TRIM(:OLD.REPORT_QUERY) THEN
INSERT INTO REPORT_HISTORY
(
REPORT_HIST_ID ,
REPORT_ID ,
NAME ,
DESCRIPTION ,
HTML_EXPORT ,
REPORT_QUERY ,
DATASOURCE_ID
)
VALUES
(
v_REPORT_HIST_ID,
:NEW.REPORT_ID ,
:NEW.NAME ,
:NEW.DESCRIPTION ,
:NEW.HTML_EXPORT ,
:NEW.REPORT_QUERY,
:NEW.DATASOURCE_ID
);
ND IF;
o_OutputStatus := 0;
o_OutputMessage := 'SUCCESS';
EXCEPTION
WHEN OTHERS THEN
o_OutputStatus := 1;
o_OutputMessage :='Operation Failed. Step No = '||v_ErrorFlag||' Sql Error :- '||SUBSTR(SQLERRM,1,100) ;
END;
Can anybody give the solution for problem?
Thanks and Regards,
Milind.
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