Procedure for inserting rows

Question

dear members,
i have a table with some missing numbers in a col1.
how can i add rows containing missing numbers.
starting and ending number is given in the procedure.
let us say starting from 1 to 10.
table
id col1
1 2
2 3
3 4
4 9
Required Result after running the procedure.
table
id col1
1 2
2 3
3 4
4 9
5 1
6 5
7 6
8 7
9 8
10 10
can i have that procedure.
regards
teefu.
Edited by: user_teefu on Aug 23, 2010 2:19 PM

Answer 1

Hi,
I would do something like that :create or replace procedure t_addrows(
        p_min integer,
        p_max integer)
as
        l_inserted integer;
begin
        insert into t (id, col1)
        select
                idstart+rownum id,
                col1
        from (
                select idstart, p_min+level-1 as col1
                from (
                        select nvl(max(id),0) idstart
                        from t
                connect by level <= p_max-p_min+1
        ) n    
        where not exists (
                select null
                from t
                where t.col1=n.col1
        l_inserted := SQL%ROWCOUNT;
        dbms_output.put_line('inserted : '||l_inserted);
end;
/It gets the max(id) from the table to generate "following" ids.
it uses the connect by level to generate integers between min and max parameters provided.
it does a NOT EXISTS to avoid primary key errors.
Example :Scott@my10g SQL>select * from t;
        ID       COL1
         1          2
         2          3
         3          4
         4          9
Scott@my10g SQL>begin
  2  t_addrows(1,10);
  3  end;
  4  /
inserted : 6
PL/SQL procedure successfully completed.
Scott@my10g SQL>select * from t;
        ID       COL1
         1          2
         2          3
         3          4
         4          9
         5          5
         6          8
         7          1
         8         10
         9          6
        10          7
10 rows selected.
NB :_ I didn't include a COMMIT in the procedure. You decide wheither it should be there or not.