Utl_file.fopen

Question

Hi everyone..
I am using utl_file to write delimited data into text files.In the utl_file.fopen i changed the default l "max line size" to 32767 when i got some error regarding the line size.After changing that that max line size paramaterer,I am getting lot of space after each line.
Does that max line size parameter means that every line "should" be that size? why i am getting lot of space after each line?
question1:
======
How to remove that empty spaces that i got after each line in my text file?
FILEHANDLE := UTL_FILE.FOPEN('TEST_UTL_FILE','file_name.txt', 'W',32767);And i am trying to find the length of the string that i am passing it utl_file.put_line
I am trying to insert that length to a "test" table ,so that i can check the max length of each line that is passing to the utl_file.
I have this insert command in my PL/SQL block
insert into test_number_char (num) values (dbms_lob.getlength(EXTRACTED_STRING)); and the data type of "num" column is number(20,0)
I am getting the following error .
ERROR getting members -1461 ORA-01461: can bind a LONG value only for insert into a LONG columnquestion 2:
=======
How to get the length of the string that i am writing into file?
Thanks
phani

Answer 1

Hi Phani,
>
question1:
======
How to remove that empty spaces that i got after each line in my text file?
>
something like this,
   string := Rtrim(string,' ');question 2:
=======
How to get the length of the string that i am writing into file?
>
look at this,
SQL> Set Serveroutput on
SQL> Create or Replace Directory SOME_DIR As 'C:\Temp';
Directory created
SQL> Create table Test_ As (Select dbms_random.string('X',10) as Txt From dual Connect by Level <= 2500);
Table created
SQL>
SQL> Declare
  2     v_column   Varchar2(30);
  3     l_utl_dir  Varchar2(30) := 'SOME_DIR';
  4     l_utl_file Varchar2(30) := 'Some_File.txt';
  5     l_header   Varchar2(32767) := Null;
  6     l_utl_id   UTL_FILE.FILE_TYPE;
  7  Begin
  8     DBMS_OUTPUT.ENABLE(32767);
  9 
10     l_utl_id := UTL_FILE.FOPEN( location     => l_utl_dir
11                               , filename     => l_utl_file
12                               , open_mode    => 'w'
13                               , max_linesize => 32767);
14 
15     For i IN (SELECT Rowid
16                 FROM TEST_) Loop
17 
18        For x IN (SELECT COLUMN_NAME
19                       , TABLE_NAME
20                    FROM ALL_TAB_COLS
21                   WHERE TABLE_NAME = 'TEST_') Loop
22 
23           Execute Immediate 'select ' || x.column_name || ' from ' ||
24                             x.table_name || ' where rowid = :pi_input'
25              INTO v_column
26              Using IN i.Rowid;
27 
28           l_header := l_header || v_column || ' ';
29 
30        End Loop;
31     End Loop;
32 
33     UTL_FILE.PUT_LINE( file   => l_utl_id
34                      , buffer => l_header );
35 
36     UTL_FILE.FCLOSE(file => l_utl_id);
37 
38     DBMS_OUTPUT.PUT_LINE( LENGTH( l_header ) );
39  End;
40  /
27500
PL/SQL procedure successfully completedHope this helps,
Christian Balz