Referring to the dynamic cursor rows and columns in SQL

I have a procedure that dynamically reads a schema name and a table name in a table entry. The code must loop through all the rows and the columns in each table and the output data. I'm done with what I want to achieve 95%, but there is a little bug. The dbms_output.put(*col.column_name* ||) line '',''); ' ||
return to something like rec.col.column_name , so that it is the column of the current record. Currently, it simply displays the name of the column for each record instead of the actual value. Can someone help me to change the code to get the real value?

CREATE OR REPLACE PACKAGE BODY some_proc
-Function and procedure implementations
PROCEDURE create_files IS
CURSOR c_tbls IS
SELECT * FROM tbl_list;
l_sql VARCHAR2 (4000);
BEGIN
-To loop through all the tables
FOR tbl IN c_tbls LOOP
l_sql: = "DECLARE" | «C_tbl_recs CURSOR IS» | ' SELECT * ' |. '
'FROM ' | tbl.schema_name | '.' || tbl.table_name | '; ' ||
' t_tbl_rowtype c_tbl_recs % ROWTYPE; ' || "START" |
"FOR rec IN c_tbl_recs LOOP |
' FOR col IN (SELECT column_name ' |)
"FROM dba_tab_cols" |
"Owner WHERE ="' | " tbl.schema_name | '''' ||
' AND table_name = "' | tbl.table_name | '''' ||
ORDER BY column_id) LOOP '.
*' dbms_output.put(col.column_name ||) '',''); ' || * "END OF LOOP; dbms_output.put_line('''); END LOOP; ' ||
' END; ';
-dbms_output.put_line (l_sql);
EXECUTE IMMEDIATE l_sql;
END LOOP;
EXCEPTION
WHILE OTHERS THEN
dbms_output.put_line (SQLERRM);
END;
END;

Is this what you are looking for?
(it took a few minutes)

create or replace
package some_proc is
procedure create_files;
end;
/

CREATE OR REPLACE
PACKAGE BODY some_proc
IS
  -- Function and procedure implementations
PROCEDURE create_files
IS
  CURSOR c_tbls
  IS
    SELECT * FROM tbl_list;

  CURSOR c_cols (p_table_owner VARCHAR2, p_table_name VARCHAR2)
  IS
    SELECT column_name
    FROM all_tab_columns
    WHERE owner   =p_table_owner
    AND table_name=p_table_name
    ORDER BY all_tab_columns.column_id;

  l_sql     VARCHAR2(32000);

  separator VARCHAR2(1):=';';

BEGIN
  --Loop through all tables
  FOR tbl IN c_tbls
  LOOP
    dbms_output.put_line('TABLE: '||tbl.schema_name||'.'||tbl.table_name);
    l_sql := 'DECLARE ' ;
    l_sql := l_sql|| '  CURSOR c_tbl_recs IS ' ;
    l_sql := l_sql||'    SELECT * FROM ' || tbl.schema_name || '.' || tbl.table_name || '; ' ;
    l_sql := l_sql||'    linenr number:=1; ';
    l_sql := l_sql||'BEGIN ' ;
    l_sql := l_sql|| ' FOR rec IN c_tbl_recs LOOP ';
    FOR c IN c_cols(tbl.schema_name,tbl.table_name)
    LOOP
      l_sql:=l_sql ||' if linenr=1 then  dbms_output.put('''||c.column_name||''||separator||'''); end if; ' ;
    END LOOP;
    l_sql :=l_sql||'  dbms_output.put_line(''''); linenr:=linenr+1; ';
    FOR c IN c_cols(tbl.schema_name,tbl.table_name)
    LOOP
      l_sql:=l_sql ||' dbms_output.put(rec.'||c.column_name||'||'''||separator||'''); ' ;
    END LOOP;
    l_sql:=l_sql||'  end loop; ';
    l_sql:=l_sql||'  dbms_output.put_line(''''); ';
    l_sql:=l_sql||'  dbms_output.put_line(''''); ';
    l_sql:=l_sql||'end;';
    EXECUTE IMMEDIATE l_sql;
  END LOOP;
EXCEPTION
WHEN OTHERS THEN
  dbms_output.put_line(SQLERRM);
END;
END;
/

Tags: Database

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