Answer / naga

firstly read the file into database or sequential file and
make sure the file has company as a column in this file and
give its output to aggregator and in aggregator give
group=company and column to calculate=sal and maximum value
for output column=maxsal and do mapping to the dataset and
you will get the required result.

Answer / amjad

Hi Naga,
If we use Aggregator stage, it will give the max value from
different groups, as per your example, it will group by
company, then it will give the max sal from each group. but
how to max sal from all the groups, i mean the out put
should be only one value.

Ex:

COMPANY,SAL
A, 2000
B, 3000
C, 4000
A,5000
B,6000
C,7000
A,8000
B,9000
C,9999

if we do like you mention output will be like :
comp,maxsal
A,8000
B,9000
C,9999

But, the output should be only
C,9999

Plese let me if iam wrong.

Answer / guest

Frist using Sortstage sort the records based on sal column
for desc order and Each record unqiely identify using
surogatekey after that filterstage filter the first record
based on sur column and drag and drop only in sal column
in the output.Then We get the Max sal

Answer / nandhini

Create one dummy key and set the value as 1 for all input
columns and use remove duplicate stage. Here use this dummy
as key and use sorting, partitioning for dummy and company
columns & use sorting (descending) for salary column and in
properties tab, select duplicate to retain as last.

Answer / sagnik

You need to sort by your SAL not COMPANY.

Answer / shar

ok lets us say after getting result like
a,8000
b,9000
c,9999
acc to nandhini using dummy key would give me
a,8000,1
b,9000,1
c,9999,1
then use rem duplicate stage then we get 9999 as output after we assign retain duplicates=last for dummykey col.
what if
i have diff data and got output like below after aggreagation
a,9000
b,18000
c,10000
now what...?

Answer / guest

U can use Aggregator stage in Datastage

Name the command line functions to import and export the DS jobs?

0 Answers  

How much data u can get every day? 2)which data ur project contains? 3) what is the source in ur project?what is the biggest table & size in ur schema or in ur project?

2 Answers   Wipro,

Where do the datastage jobs get stored?

0 Answers  

Lookup constraints

0 Answers   CTS,

what is Audit table?Have u use audit table in ur project?

3 Answers   Accenture, Wipro,

j1,j2,j3 jobs r runing iwant to run j1,j3 after j2 how to do this using sequencer? 2)j1,j2,j3 jobs r runing iwant to run j1,j2,j3 how to do this?

1 Answers   Wipro,

How many types of hash files are there?

0 Answers  

What are the functionalities of link collector?

0 Answers  

What are the third party tools you used in your project?

1 Answers   IBM,

what is datastage job Monitoring

6 Answers   CTS,

when will you go for dataset and fileset?

2 Answers   Accenture,

In aggregator stage,to find the sum of the entire group of columns,it displays in binary format. How can i solve this problem.

1 Answers   IBM,