Passing different tables as a input parameter

Question

HI,
I've 5 tables TAB1, TAB2, TAB3, TAB4, TAB5
and I created 5 store procedures to generate 5 file.txt with utl_file utility.
Now I'd like to know if possible create just one stored procedure (or package) with just one cursor
that passing different tables as a input parameter.
Have you any idea?
Thanks in advance!

Answer 1

Here you go...
SQL> create table tab1 as select 1 as x, 'A' as y from dual union
  2                       select 2, 'B' from dual union
  3                       select 3, 'C' from dual;
Table created.
SQL>
SQL> create table tab2 as select 4 as x, 'D' as y from dual union
  2                       select 5, 'E' from dual union
  3                       select 6, 'F' from dual;
Table created.
SQL>
SQL> CREATE OR REPLACE PROCEDURE output_tbl (p_table_name IN VARCHAR2) IS
  2    v_cur     SYS_REFCURSOR;
  3    x         NUMBER;
  4    y         VARCHAR2(10);
  5  BEGIN
  6    OPEN v_cur FOR 'SELECT x, y FROM '||p_table_name||' ORDER BY x';
  7    LOOP
  8      FETCH v_cur INTO x, y;
  9      EXIT WHEN v_cur%NOTFOUND;
10      -- Here you would output to your file, but for ease of
11      -- demonstration I'll just dbms_output the data
12      DBMS_OUTPUT.PUT_LINE(x||' : '||y);
13    END LOOP;
14  END;
15  /
Procedure created.
SQL> exec output_tbl('TAB1');
1 : A
2 : B
3 : C
PL/SQL procedure successfully completed.
SQL> exec output_tbl('TAB2');
4 : D
5 : E
6 : F
PL/SQL procedure successfully completed.
SQL>