ORA-29285: file write error is one of the errors which may get while doing file handling operation in the oracle database
File handling operations are creating a new file on the Operating system, updating or modifying it. This function is used quite often in PLSQL for file manipulation
Reason and Resolutions for ORA-29285
(1) Unix /Linux File system where you are writing the file is full i,e it is 100% utilized.
df -h /u500
/u500 100 0
declare
fileHandler UTL_FILE.FILE_TYPE;
begin
fileHandler := UTL_FILE.FOPEN('/u500', 'tech', 'W');
UTL_FILE.PUT_LINE(fileHandler, 'This is the file for test');
UTL_FILE.FCLOSE(fileHandler);
end;
/
DECLARE
*
ERROR at line 1:
ORA-29285: file write error
ORA-06512: at "SYS.UTL_FILE", line 4
ORA-06512: at "SYS.UTL_FILE", line 1169
ORA-06512: at line 6
Resolution
Free up the space in /u500 and we can check again the PLSQL block
So basically you need to clear the unnecessary files in the file system being used. Please make sure you dont delete any files that are currently in use.If you delete any active files, then space will not be released
df -h /u500
/u500 80 20
declare
fileHandler UTL_FILE.FILE_TYPE;
begin
fileHandler := UTL_FILE.FOPEN('/u500', 'tech', 'W');
UTL_FILE.PUT_LINE(fileHandler, 'This is the file for test');
UTL_FILE.FCLOSE(fileHandler);
end;
/
2 3 4 5 6
PL/SQL procedure successfully completed.
(2) When a file is opened by FOPEN unless a value is specified for the MAX_LINESIZE parameter, it will default to 1024. So this error also happens if you are putting more than 1024 characters in the line
DECLARE
file_name VARCHAR2(256) := 'test.lst';
file_text VARCHAR2(100) := '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890....<2000 character>';
file_id UTL_FILE.file_type;
BEGIN
file_id := UTL_FILE.fopen('/tmp', file_name, 'W');
UTL_FILE.put_line(file_id, file_text);
UTL_FILE.fclose(file_id);
END;
/
DECLARE
*
ERROR at line 1:
ORA-29285: file write error
ORA-06512: at "SYS.UTL_FILE", line 2
ORA-06512: at "SYS.UTL_FILE", line 1169
ORA-06512: at line 6
Resolution
We can prevent this error by specifying the max line size
DECLARE
file_name VARCHAR2(256) := 'test.lst';
file_text VARCHAR2(100) := '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890....<2000 character>';
file_id UTL_FILE.file_type;
BEGIN
file_id := UTL_FILE.fopen('/tmp', file_name, 'W',5000);
UTL_FILE.put_line(file_id, file_text);
UTL_FILE.fclose(file_id);
END;
/
2 3 4 5 6 PL/SQL procedure successfully completed.
The MAX_LINESIZE parameter can be up to 32767. If you have lines longer than 32K then the data should be written as binary.
(3) This error can occur while Calling UTL_FILE.PUT_LINE repeatedly in a loop when writing cumulatively more than 1024 characters. The reason is incorrect Setting of ORA_NLS10 or the variable ORA_NLS10 is not set
Example
unset ORA_NLS10
sqlplus / as sysdba
shutdown immediate
startup
sqlplus "/ as sysdba"
DECLARE
file_name VARCHAR2(256) := 'test.lst';
file_text VARCHAR2(100) := '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890';
file_id UTL_FILE.file_type;
BEGIN
file_id := UTL_FILE.fopen('/tmp', file_name, 'W');
FOR x IN 1..11 LOOP -- write 11 records
UTL_FILE.put_line(file_id, file_text);
END LOOP;
UTL_FILE.fclose(file_id);
END;
/
ORA-29285: file write error
Resolution
Please make sure ORA_NLS10 is set in the oracle database and listener environment
ORACLE_SID=TEST
ORA_NLS10=< >
sqlplus / as sysdba
shutdown
immediate
startup
lsnrctl stop TEST
lsnrctl start TEST
sqlplus / as sysdba
DECLARE
file_name VARCHAR2(256) := 'test.lst';
file_text VARCHAR2(100) := '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890';
file_id UTL_FILE.file_type;
BEGIN
file_id := UTL_FILE.fopen('/tmp', file_name, 'W');
FOR x IN 1..11 LOOP -- write 11 records
UTL_FILE.put_line(file_id, file_text);
END LOOP;
UTL_FILE.fclose(file_id);
END;
/
PL/SQL procedure successfully completed.
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https://docs.oracle.com/cd/E11882_01/server.112/e17766/e29250.htm