What is the best way to execute immediate particular sql stored in a table

Question

I have a string variable containing row_ids eg "12,24,35,23"
and a table
row_id, sql
1 , "insert into some_table values(23,'Happy');"
6 , "insert into some_other_table values(24,'Sad');"
12 , "insert into some_table values(23,'Crazzzy');"
15 , "insert into some_other_table values(23,'Old');"
23 , "insert into another_table values(23,'Left');"
24 , "insert into stuff_table values(23,'Gold');"
30 , "insert into old_table values(23,'Even');"
35 , "insert into archive_table values(23,"True");"
And I need to write a plsql function that takes the list of row_ids as an argument and executes the sql statements stored in the table that matches.
I am trying a combination of cursor and execute immediate statements to do it at the moment but suspect I am being very inefficient. So any suggestions or examples of similar code anyone knows about would be hugely appreciated.
Cheers
Reuben

Answer 1

Not sure why anyone would be doing such a thing as storing their SQL in a table and wanting to dynamically execute it (generally this is bad practice), but if you must...
SQL> select * from testdata;
    SQL_ID SQL_TEXT
         1 insert into some_table values(23,'Happy');
         6 insert into some_other_table values(24,'Sad');
        12 insert into some_table values(23,'Crazzzy');
        15 insert into some_other_table values(23,'Old');
        23 insert into another_table values(23,'Left');
        24 insert into stuff_table values(23,'Gold');
        30 insert into old_table values(23,'Even');
        35 insert into archive_table values(23,'True');
8 rows selected.
SQL> set serverout on
SQL> ed
Wrote file afiedt.buf
  1  DECLARE
  2    v_ids VARCHAR2(4000) := '12,24,35,23';
  3    CURSOR cur_fetch IS
  4      SELECT sql_text
  5      FROM   testdata
  6      WHERE  sql_id IN (SELECT TO_NUMBER(REGEXP_SUBSTR (v_ids, '[^,]+', 1, rownum))
  7                        FROM   DUAL
  8                        CONNECT BY ROWNUM <= length(regexp_replace(v_ids,'[^,]*'))+1);
  9  BEGIN
10    FOR s IN cur_fetch
11    LOOP
12      DBMS_OUTPUT.PUT_LINE(s.sql_text); -- For demo purposes show the sql text
13      -- EXECUTE IMMEDIATE s.sql_text; -- In reality, uncomment this to execute the sql text
14    END LOOP;
15* END;
16  /
insert into some_table values(23,'Crazzzy');
insert into another_table values(23,'Left');
insert into stuff_table values(23,'Gold');
insert into archive_table values(23,'True');
PL/SQL procedure successfully completed.
SQL>