Answer / ravi kumar singh

DECLARE
RETVAL NUMBER:=0;/*A_CHK IS TABLE AND A IS COLOUMN HAVING NOS*/
I NUMBER:=0;
BEGIN
FOR I IN 1..100
LOOP
SELECT COUNT(*) INTO RETVAL FROM A_CHK WHERE A=I;
IF (RETVAL=0) THEN
DBMS_OUTPUT.PUT_LINE(I);
ELSE NULL;
END IF;
END LOOP;
END;

Answer / subrat ray

SQL> desc numtab;
Name Null? Type
------ ------- ------
X NUMBER(4)


declare
v_num number(2);
cursor c1 is select rownum num from all_tables where rownum<=100
minus
select x num from numtab;
begin
open c1;
loop
fetch c1 into v_num;
exit when c1%notfound;
dbms_output.put_line(v_num);
end loop;
close c1;
end;

Answer / neha sinha

create or replace procedure pro1(cur_diff OUT SYS_REFCURSOR) is
BEGIN
OPEN cur_diff FOR

select diff
from (select /*+ no_merge */
rownum as diff
from (select 1 from dual group by cube(1, 1,
1, 1, 1)) a,
(select 1 from dual group by cube(1, 1,
1, 1, 1, 1)) b)
where diff >= (select min(lst) from list1)
and diff <= (select max(lst) from list1)
minus
select lst from list1;
end pro1;
-- where list1 is table name and lst is column in which
--some no is missing

Answer / kavitha n

BEGIN

FOR DATA IN (SELECT LEVEL num
FROM DUAL
CONNECT BY LEVEL <= 100
MINUS
SELECT num
FROM missingsquence)
LOOP
exit when sql%notfound;

DBMS_OUTPUT.put_line (DATA.num);
END LOOP;
END;
/

Answer / sumit

declare i number :=1;

begin
a number;
while (i<=100) loop
select num from table into a where num=i;
If a is null then dbms_output.put_line(i);
i:=i+1;
end loop;
end;

Answer / sureshramsing@gmail.com

select level from dual connect by level<=100 minus select <column name> from <table name>;

Answer / mani

DECLARE

l_id NUMBER;/* Temp IS TABLE AND ID IS COLOUMN HAVING
Numbers*/

BEGIN

FOR I IN 1..100 LOOP
SELECT COUNT(*) INTO l_id FROM temp WHERE id=I;
IF (l_id = 0) THEN
DBMS_OUTPUT.PUT_LINE(I);
ELSE
NULL;
END IF;
END LOOP;

END;

Answer / vishnu

create table test100 (id number);

insert into test100
select level from dual connect by level <=100;

select id from (SELECT rownum id from test100) where id
not in (select ID from(select rownum,id from test100) where id!=decode(id,rownum,rownum+1,rownum));

Answer / dipanshu saini

select level from dual connect by level<=(select max(seq_no) from test_tab)
minus
select seq_no from test_tab;

how to delete duplicate rows from a join tables(I have three tables on that join) how do you know which join is need to be used? The select statement I have is: SELECT gc_skill_type.skill_type, gc_area_tec.area, gc_technology.technology, gc_technology.id_technology, gc_area_tec.id_area_tec FROM gc_skill_type, gc_area_tec, gc_technology WHERE gc_area_tec.id_skill_type (+) = gc_skill_type.id_skill_type AND gc_technology.id_area_tec (+) = gc_area_tec.id_area_tec order by gc_skill_type.skill_type asc, gc_area_tec.area asc, gc_technology.technology asc

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