1> incase of 2,4,6,8,...
select col1,col2 from tab1 where col1 in
(Select case when Row_number() over (order by col1)%2=0
then col1 else 0 end from tab1)
2> in case of 1,3,5,7,....
select col1,col2 from tab1 where col1 in
(Select case when Row_number() over (order by col1)%2=1
then col1 else 0 end from tab1)
For 1,3,5,7...
select * from emp where (rowid,1) in (select rowid,mod
(rownum,2) from emp);
For 2,4,6,8,...
select * from emp where (rowid,0) in (select rowid,mod
(rownum,2) from emp);
with contactinfo as (
select contactid,firstname,row_number() over (order by
firstname)as row from person.contact
)
--select * from contactinfo where row % 2 =0
For 1,3,5,7...
select * from emp where (rowid,1) in (select rowid,mod
(rownum,2) from emp);
For 2,4,6,8,...
select * from emp where (rowid,0) in (select rowid,mod
(rownum,2) from emp);
1.can we set the more than 1 primary keys for a table?
2.please give me the difference between Cluster Index and
non-Clustered Index
3.can we use query like this "Select * from Table1,Table2;"
hi,
how to match retrieve the unmatched records from 2 tables
in which we dont have any primary key. example : table1 has
1,2,3,4,5 and table2 has 1,2,3,4,5,6,7,8,9,10 and i want
the numbers from 6 to 10 to be displayed and should not
come as null. i need the numbers. please reply as soon as
possible.
along with your userid / name. ThanQ
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