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1) In a dataset how to delete a single row?
2) i have 50 rows , i want to display 5-7 records only?
How to write the sql query?
3)i have 40 rows,i want to display last row? write sql query?
Answer
2)select * from (select rownum rno,emp.* from emp)
where rno in(5,6,7)
or
select * from (select rownum rno,emp.* from emp)
where rno between 5 and 7
or
select * from emp where rownum<8
minus
select * from emp where rownum<5
in first two are very efiiciency compare to third one
because in third iam using set operator
3)select * from emp where rowid=(select max(rowid) from emp);
| Is This Answer Correct ? | 11 Yes | 0 No |
I have a source like file it have Number of records and i want to load without first and last records in target?Datastage?
Answer
in this we use command sed -n '1d,
$d'(this is unix command we use we get answer)
(or)
we use command tail +2 |sed -n '$d'
| Is This Answer Correct ? | 6 Yes | 4 No |
Question { 8802 }
hi this is kiran
i have one table i want divide the table with two different
table like even rows and odd rows
how can i do this one
tell me plzz
Answer
in the transformer stage we have append new column and
derviation area write mod(@outrownum,2) (where @outrownum in
sysvarible)
after that we put fileter or switch in that
write condition on append column 0 then even records
1 then go odd records
| Is This Answer Correct ? | 1 Yes | 0 No |
col1
123
abc
234
def
jkl
768
opq
567
789
but i want two targetss target1 contains only numeric values
and target2 contains only alphabet values like
trg1
123
234
768
567
789
trg2
abc
def
jkl
opq
Answer
->filter2 ->tranformer2 joinstage ->target
in source:-
take i/p
transformer :
append new collumn and apply char function is alpha
filter1:
separate 0
filter2:
separate 1
transformer1
add another column @outrownum
transformer 2
add another column @outrownum
we join on @rownum column we will get
do perfect we get answer
| Is This Answer Correct ? | 1 Yes | 0 No |
Question { Cap Gemini, 9906 }
i have one table with one column in this column i have three
rows like 1,1,2 then that rows populate to target as first
tow rows as one row and remaing row as one row how it posible?
COLUMN_NAME
SHIVA
RAMU
MADHU
THEN I WANT TO LIKE SHIVA AND RAMU IN ONE ROW AND
MADHU IS ONE ROW IF ANY ONE KNOW PLZ TELL ME
Answer
inser file load
col1
1
1
2
in the sort
key->sort
allowduplicate->true
keychangecolumn->true
in the transformer
create the stage variable
if keychnage=1 then col1 else stagevariablename:col1
drag col1 in transformer
in the derivation area only put stagevariable
remove duplicate:
key:col1
you select last records
we will get answer
col1
11
2
| Is This Answer Correct ? | 14 Yes | 1 No |
A flatfile contains 200 records.I want to load first 50
records at first time running the job,second 50 records at
second time running and so on,how u can develop the job?pls
give the steps?
Answer
using this command in filter option in the first running job.
second running job we use sed -n '51p,100' using this command
in this way we use other two times running job.....
| Is This Answer Correct ? | 8 Yes | 1 No |
