Need help: loop of pl/sql with UTL_FILE reading and analysis of file text 2

Hello, I am working on a new project using the UTL_FILE utility in oracle 11 g. and I was wondering if someone could help me with a pl/sql code, I can't understand.
My goal is to open and then read a Type_de_fichier file1.txt
copy a specific paragraph of the file1.txt where
the first word in a specific line in the file1.txt starts with "foo" then when the last word in fichier1.txt ends in 'ZEN'
write to file2.txt only the analysis section in my where statement.
I don't know if it's possible, but any guidance will greatly appreciate!

My code example:

CREATE OR REPLACE PROCEDURE my_app2 IS
Utl_file.file_type inFile;
OutFile utl_file.file_type;
buffer VARCHAR2 (30000);
BEGIN
-Open a file to read
InFile: = utl_file.fopen ('TEST_DIR', 'mytst.txt', 'r');
-Opens a file for writing
OutFile: = utl_file.fopen ('TEST_DIR', "Out.txt", "w");

-Check the file is open
IF utl_file.is_open (InFile) THEN
-lines in the file in loop
LOOP
BEGIN
UTL_FILE.get_line (InFile, buffer);
-Write to out.txt
UTL_FILE.put_line (OutFile, buffer, FALSE);
UTL_FILE.fflush (outfile);

EXCEPTION
WHEN NO_DATA_FOUND THEN
EXIT;
END;
END LOOP;
END IF;
UTL_FILE.fclose (INFILE);
UTL_FILE.fclose (outfile);
EXCEPTION
WHILE OTHERS THEN
RAISE_APPLICATION_ERROR (-20099, "UTL_FILE Unknown Error");
END my_app2l;
/

Hello

According to the code should work-

CREATE OR REPLACE PROCEDURE my_app2 IS
   infile              utl_file.file_type;
   outfile             utl_file.file_type;
   buffer              VARCHAR2(30000);
   b_paragraph_started BOOLEAN := FALSE; -- flag to indicate that required paragraph is started
BEGIN
   -- open a file to read
   infile := utl_file.fopen('TEST_DIR', 'mytst.txt', 'r');
   -- open a file to write
   outfile := utl_file.fopen('TEST_DIR', 'out.txt', 'w');

   -- check file is opened
   IF utl_file.is_open(infile)
   THEN
      -- loop lines in the file
      LOOP
         BEGIN
            utl_file.get_line(infile, buffer);

            IF buffer LIKE 'foo%' OR b_paragraph_started
            THEN
               --write to out.txt
               utl_file.put_line(outfile, buffer, FALSE);
               b_paragraph_started := TRUE;
            END IF;

            IF buffer LIKE '%ZEN'
            THEN
               b_paragraph_started := FALSE;
            END IF;
            utl_file.fflush(outfile);

         EXCEPTION
            WHEN no_data_found THEN
               EXIT;
         END;
      END LOOP;
   END IF;
   utl_file.fclose(infile);
   utl_file.fclose(outfile);
EXCEPTION
   WHEN OTHERS THEN
      raise_application_error(-20099, 'Unknown UTL_FILE Error');
END my_app2l;
/

What I've done here is added a new Boolean variable. Loop in each iteration after reading one line, we check if the line starts with "foo". If yes then set the Boolean variable and writing out the startup file until we get a line that ends with "ZEN." That way even if there are several paragraphs in an input file starting with foo and ending with ZEN, then those should get copied to the output file.

Hope this helps,

-Gregory

Tags: Database

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Need help: UTL_FILE read and write in the text file
Hello, I'm on version 11 GR 2 by using the UTL_FILE function to read a text file and then write the lines where it starts with the word "foo" and put an end to my writing in the text file where the line with the word "ZEN". Now I have several lines that begin with 'foo' and 'ZEN' allow a paragraph, and in this paragraph, there is a line that begins with "DE4.2". Therefore,.
I need to write all of the paragraphs that include the "DE4.2" line in their beginning and end of lines 'foo' and 'ZEN '.

FOR EXAMPLE:

FOO/234E53LLID
IT'S MY SECOND LINE
IT'S MY THIRD LINE
DE4.2 IT OF MY FOURTH LINE
IT'S MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID
IT'S MY SECOND LINE
IT'S MY THIRD LINE
IT'S MY FIFTH LINE
ZEN/DING3434343

I'm only interested in writing the first paragraph tha includes line DE4.2 in one of the paragraph of lines not the second ther that does not include the "DE4.2".

Here is my code so far:

CREATE OR REPLACE PROCEDURE my_app2 IS
Utl_file.file_type INFILE;
outfile utl_file.file_type;
buffer VARCHAR2 (30000);
b_paragraph_started BOOLEAN: = FALSE; -flag to indicate which required paragraph is started

BEGIN
-Open a file to read
INFILE: = utl_file.fopen ('TEST_DIR', 'mytst.txt', 'r');
-Opens a file for writing
outfile: = utl_file.fopen ('TEST_DIR', "Out.txt", "w");

-Check the file is open
IF utl_file.is_open (infile)
THEN
-lines in the file in loop
LOOP
BEGIN
UTL_FILE.get_line (infile, buffer);
APPLICATION STARTING POINT-
Buffer IF LIKE 'foo %' THEN
b_paragraph_started: = TRUE;
END IF;
-SEARCH FOR GRADS APPS
IF b_paragraph_started AND buffering LIKE '% 4% ' THEN
UTL_FILE.put_line (outfile, buffer, FALSE);
END IF;
-REQUEST FOR ENDPOINT
Buffer IF LIKE '% ZEN' THEN
b_paragraph_started: = FALSE;
END IF;
UTL_FILE.fflush (outfile);

EXCEPTION
WHEN no_data_found THEN
EXIT;
END;
END LOOP;
END IF;
UTL_FILE.fclose (INFILE);
UTL_FILE.fclose (outfile);
EXCEPTION
WHILE OTHERS THEN
raise_application_error ("-20099, ' UTL_FILE unknown error");
END my_app2;
/

When I run this code I get only one line: DE4.2 it ME LACK THE WHOLE PARAGRAPH

PLEASE ADVISE...
I agree with reservations of Justin on the length of a "paragraph" and the number of users that are running at the same time, so here is a version without the collections.
```
CREATE or replace PROCEDURE my_app2 IS
   infile utl_file.file_type;
   outfile utl_file.file_type;
   buffer VARCHAR2(30000);
   b_paragraph_started BOOLEAN := FALSE; -- flag to indicate that required paragraph is started
   b_toprint BOOLEAN := FALSE;
   l_para_start pls_integer;  -- start of "paragraph"
BEGIN
   infile := utl_file.fopen('TEST_DIR', 'mytst.txt', 'r');
   outfile := utl_file.fopen('TEST_DIR', 'out.txt', 'w');
   LOOP
      BEGIN
         utl_file.get_line(infile, buffer);
         IF buffer LIKE 'FOO%' THEN
            b_paragraph_started := TRUE;
            l_para_start := UTL_FILE.FGETPOS(infile) - (length(buffer) + 1);
         END IF;
         IF b_paragraph_started and buffer like '%DE4%' THEN
            b_toprint := TRUE;
         END IF;
         If buffer like 'ZEN%' THEN
            IF b_toprint THEN
               UTL_FILE.FSEEK(infile, l_para_start);
               utl_file.get_line(infile, buffer);
               while buffer not like 'ZEN%' loop
                  utl_file.put_line(outfile,buffer, FALSE);
                  utl_file.get_line(infile, buffer);
               end loop;
               utl_file.put_line(outfile,buffer, FALSE);
            end if;
            b_paragraph_started := FALSE;
            b_toprint := false;
            utl_file.fflush(outfile);
         end if;
      EXCEPTION
         WHEN no_data_found THEN
            EXIT;
         END;
   END LOOP;
   utl_file.fclose(infile);
   utl_file.fclose(outfile);
END my_app2;
```
Test:
```
SQL> !cat mytst.txt
FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
DE4.2 THIS IS MY FOURTH LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343

FOO/234E53LLID again
THIS IS MY second SECOND LINE
THIS IS MY second THIRD LINE
DE4.2 THIS IS MY second FOURTH LINE
THIS IS MY second FIFTH LINE
ZEN/DING3434343 again

SQL> exec my_app2;

PL/SQL procedure successfully completed.

SQL> !cat out.txt
FOO/234E53LLID
THIS IS MY SECOND LINE
THIS IS MY THIRD LINE
DE4.2 THIS IS MY FOURTH LINE
THIS IS MY FIFTH LINE
ZEN/DING3434343
FOO/234E53LLID again
THIS IS MY second SECOND LINE
THIS IS MY second THIRD LINE
DE4.2 THIS IS MY second FOURTH LINE
THIS IS MY second FIFTH LINE
ZEN/DING3434343 again
```
You may need to change the length (buffer) + 1 depending on your platform and if you want a blank line s NLE out paragraphs, add another call to put_line after that outside of the loop in the fi l_toprint block.

John

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{
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AND test_type = 3
ORDER BY pw CSA;

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Round ((DECODE (t.rfltype1, 5, t.rfldist1,)))
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DECODE (t.rfltype3, 5, t.rfldist3,)
DECODE (t.rfltype4, 5, t.rfldist4,)
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NULL)))
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OF dsltdr t
WHERE pr_id = 464527142
AND test_type = 2
ORDER BY pw CSA;

SELECT pw,
Round ((DECODE (t.rfltype1, 5, t.rfldist1,)))
DECODE (t.rfltype2, 5, t.rfldist2,)
DECODE (t.rfltype3, 5, t.rfldist3,)
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DECODE (t.rfltype6, 5, t.rfldist6,)
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NULL)))
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OF dsltdr t
WHERE pr_id = 464528984
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ORDER BY pw CSA;

>

SELECT pw,
Round ((DECODE (t.rfltype1, 5, t.rfldist1,)))
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NULL)))
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OF dsltdr t
WHERE pr_id = 464529918
AND test_type = 2
ORDER BY pw CSA;

How to start with?

Thanks in advance.
I removed the dbms_output statement because it does not seem to turn it on. If you do this from sqlplus
Make sure that you type "serverout on" and press return.
```
declare
vPW number := 0 ;
vDistance number := 0 ;
begin
sp_dsl_test(3,'12345',vDistance,vPW) ;
DBMS_OUTPUT.PUT_LINE('Distance = '|| vDistance || ' PW = '|| vPW);
end;
```
Published by: FlyingGuy on March 3, 2011 14:24

Need help: loop of pl/sql with UTL_FILE reading and analysis of file text 2

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