I have a code that gets data from a file, file contains last empty/blank line, for example if a file contains 4 records then the 5th line is blank one, how can I remove that blank line because when the code executes it rolled back the whole transaction due to that blank line and throws "no data found" exception. Below is my code:
create or replace PROCEDURE UPLOAD_CMS_VISA_RR
AS
BEGIN
DECLARE
f utl_file.file_type;
s VARCHAR2(4000);
BRANCH_CODE VARCHAR2(500);
TRANS_DATE VARCHAR2(500);
TRANS_TIME VARCHAR2(500);
SEQ_NO VARCHAR2(500);
MSG_TYPE VARCHAR2(500);
REMOTE_ACCOUNT VARCHAR2(500);
FRG_CURR_AMT VARCHAR2(500);
LOC_CURR_AMT VARCHAR2(500);
CHEQUE_NO VARCHAR2(500);
IBCA_NO VARCHAR2(500);
CR_DR_CODE VARCHAR2(500);
DESC_DETAIL VARCHAR2(500);
DOC_NO VARCHAR2(500);
Y_LIVECMGT_ID VARCHAR2(500);
FILLER_ONE VARCHAR2(500);
T24_ACC_NO VARCHAR2(500);
FILLER_TWO VARCHAR2(500);
INST_CODE VARCHAR2(500);
FILLER VARCHAR2(500);
LAST_DATE_MODIFIED VARCHAR2(500);
LEAD_COMPANY VARCHAR2(500);
LEAD_COUNTRY VARCHAR2(500);
V_TABLE_RECORD_COUNT NUMBER :=0;
V_FILE_RECORD_COUNT NUMBER :=0;
-- start_pos NUMBER;
ex BOOLEAN;
flen NUMBER;
bsize NUMBER;
CURSOR C1
IS
SELECT FILENAME
FROM DIR_LIST2
WHERE FILENAME = 'DESTRNFL.20170726.0401671434.00';
BEGIN
GET_DIR_LIST2( '/cdb/CSHMGMT' );
FOR FILE_REC IN C1
LOOP
UTL_FILE.FGETATTR('CSHMGMT', FILE_REC.FILENAME, EX, FLEN, BSIZE);
DBMS_OUTPUT.PUT_LINE(FILE_REC.FILENAME);
IF EX THEN
V_TABLE_RECORD_COUNT :=0;
V_FILE_RECORD_COUNT:= 0;
dbms_output.put_line('File Exist');
F := UTL_FILE.FOPEN('CSHMGMT', FILE_REC.FILENAME, 'R');
LOOP
BEGIN
V_FILE_RECORD_COUNT := V_FILE_RECORD_COUNT + 1;
UTL_FILE.GET_LINE(F,S);
BRANCH_CODE := (SUBSTR(s, 1, 4));
TRANS_DATE := (SUBSTR(S, 5,8));
TRANS_TIME := (SUBSTR(S, 13,6));
SEQ_NO := (SUBSTR(S,19,10));
MSG_TYPE := (SUBSTR(S,29,4));
REMOTE_ACCOUNT := (SUBSTR(S,33,10));
FRG_CURR_AMT := (SUBSTR(S,43,14));
LOC_CURR_AMT := (SUBSTR(S,57,14));
CHEQUE_NO := (SUBSTR(S,71,8));
IBCA_NO := (SUBSTR(S,79,8));
CR_DR_CODE := (SUBSTR(S,87,1));
DESC_DETAIL := (SUBSTR(s,88,21));
DOC_NO := (SUBSTR(S,109,6));
Y_LIVECMGT_ID := (SUBSTR(s,115,16));
FILLER_ONE := (SUBSTR(S,131,65));
T24_ACC_NO := (SUBSTR(s,196,16));
FILLER_TWO := (SUBSTR(s,212,199));
INST_CODE := (SUBSTR(S,411,6));
FILLER := (SUBSTR(s,417));
LAST_DATE_MODIFIED := NULL;
LEAD_COMPANY := 001;
LEAD_COUNTRY := 'PK';
INSERT
INTO CMS_VISA_TEST_RR
(
BRANCH_CODE,
TRANS_DATE,
TRANS_TIME,
SEQ_NO,
MSG_TYPE,
REMOTE_ACCOUNT,
FRG_CURR_AMT,
LOC_CURR_AMT,
CHEQUE_NO,
IBCA_NO,
CR_DR_CODE,
DESC_DETAIL,
DOC_NO,
Y_LIVECMGT_ID,
FILLER_ONE,
T24_ACC_NO,
FILLER_TWO,
INST_CODE,
FILLER,
LAST_DATE_MODIFIED,
LEAD_COMPANY,
LEAD_COUNTRY,
SYSTEM_DATE
)
VALUES
(
TRIM(BRANCH_CODE),
CONVERT_TO_DATE(TRANS_DATE),
TRIM(TRANS_TIME),
TRIM(SEQ_NO),
TRIM(MSG_TYPE),
TRIM(REMOTE_ACCOUNT),
TRIM(FRG_CURR_AMT),
TRIM(LOC_CURR_AMT),
TRIM(CHEQUE_NO),
TRIM(IBCA_NO),
TRIM(CR_DR_CODE),
TRIM(DESC_DETAIL),
TRIM(DOC_NO),
TRIM(Y_LIVECMGT_ID),
TRIM(FILLER_ONE),
TRIM(T24_ACC_NO),
TRIM(FILLER_TWO),
TRIM(INST_CODE),
TRIM(FILLER),
CONVERT_TO_DATE(LAST_DATE_MODIFIED),
LEAD_COMPANY,
LEAD_COUNTRY,
SYSDATE
);
COMMIT;
V_TABLE_RECORD_COUNT := V_TABLE_RECORD_COUNT +1;
--END IF;
EXCEPTION
WHEN utl_file.INVALID_PATH THEN
DBMS_OUTPUT.PUT_LINE('Invalid Path');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Invalid Pat','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN utl_file.INVALID_MODE THEN
dbms_output.put_line('Invalid Mode');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Invalid Mod','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN UTL_FILE.INVALID_FILEHANDLE THEN
dbms_output.put_line('Invalid File Handler');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Invalid File Handler','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN utl_file.INVALID_OPERATION THEN
DBMS_OUTPUT.PUT_LINE('Invalid Operation');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Invalid Operation','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN utl_file.READ_ERROR THEN
DBMS_OUTPUT.PUT_LINE('Read Error');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Read Error','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN utl_file.WRITE_ERROR THEN
DBMS_OUTPUT.PUT_LINE('Write Error');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Write Error','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN utl_file.INTERNAL_ERROR THEN
DBMS_OUTPUT.PUT_LINE('Internal Error');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Internal Error','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN VALUE_ERROR THEN
DBMS_OUTPUT.PUT_LINE('Value error');
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'Value error','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN NO_DATA_FOUND THEN
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'NO_DATA_FOUND','FILE_NAME='|| FILE_REC.FILENAME||' TRANS_TIME='|| TRIM(TRANS_TIME)||' LOC_CURR_AMT='||TRIM(LOC_CURR_AMT)||' TT NO='||Y_LIVECMGT_ID, SQLCODE, SUBSTR(SQLERRM, 1, 500));
-- commit;
-- utl_file.fcopy('CDB_UPLOAD', 'export.log', 'CDB_UPLOAD', 'export.log.processed');
-- utl_file.frename('CSHMGMT', FILE_REC.FILENAME, 'CMS_DHA', FILE_REC.FILENAME|| '_' || SYSDATE);
-- utl_file.frename('PHXEXPORT', 'export.log', 'PHXEXPORT', 'export.log.processed' || SYSDATE);
EXIT;
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('Other Error');
CONTINUE;
END;
END LOOP;
--INSERT INTO CMS_CONTROL_RR ( FILENAME,TABLE_RECORD_COUNT,FILE_RECORD_COUNT, SYSTEM_DATE ) VALUES ( FILE_REC.FILENAME,V_TABLE_RECORD_COUNT,V_FILE_RECORD_COUNT, SYSDATE );
--COMMIT;
--UTL_FILE.FREMOVE ('CSHMGMT', FILE_REC.FILENAME);
utl_file.fclose(f);
END IF;
END LOOP;
COMMIT;
EXCEPTION
WHEN NO_DATA_FOUND THEN
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'CMS_VISA_TEST_RR', '', SQLCODE, SUBSTR(SQLERRM, 1, 500));
WHEN OTHERS THEN
ROLLBACK;
ERROR_LOGGER ('UPLOAD_CMS_VISA_RR', 'CMS_VISA_TEST_RR', '', SQLCODE, SUBSTR(SQLERRM, 1, 500));
END;
END UPLOAD_CMS_VISA_RR;
When looping through a file using utl_file, how do you know that you've reached the end of the file? Well, a no_data_found execption is thrown.
So this would be the structure of your loop.
BEGIN
LOOP
UTL_FILE.GET_LINE (file, buffer);
-- evaluate what you've got from the file
-- and proces it, or not. In this case we just print it.
-- Edit: if buffer is empty don't proces it.
if buffer is not null then
DBMS_OUTPUT.PUT_LINE(buffer);
end if;
END LOOP;
EXCEPTION
--if end of file not action
WHEN NO_DATA_FOUND
THEN
NULL;
END;