How to exclude first and last lines while reading data into a sequential file(having some 1000 records).I guess probably by using unix filter option but not sure which to use
Answers were Sorted based on User's Feedback
Answer / sam
In sequential file stage, properties tab --- options -- filter
At filter type unix command -- sed '1d;$d'
Is This Answer Correct ? | 8 Yes | 0 No |
In order to exclude the contents while reading from the
sequential file stage we have to use the filter option.
There we have to specify the unix command:
Sed -e '1d' -e '$d' <filename>
Is This Answer Correct ? | 8 Yes | 1 No |
In sequential file stage use the filter in the options
In filter use sed '1d;$d'
You can use sed '<start>,<end>d' to delete particular rows and use sed -n '<start>,<end>p' to keep particular rows
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / shiv
Sreenu is also right, but we have another option as well.
Use head and tail stages in datastage like this:
Seq_File-->Tail_stage--->Head_Stage---->Dataset(Target)
in this way first u can exclude the first record using tail specify 999 record in tail stage, then u can exlclude last record by using head stage.(998 top records).
Is This Answer Correct ? | 1 Yes | 2 No |
Well if must use filter option in sequential stage then
the Ans is:
head -n 10 'FileName' | tail -n 8
explanation:
suppose if ur file has 10 records + column name then total
lines are 11.
col1
1
2
3
4
5
6
7
8
9
10
head -n 10 will fetch column name + 9 records
and
tail -n 8 will fetch 2 to 9 records excluding colname and
1st record.
like :
2
3
4
5
6
7
8
9
Thats it.
Is This Answer Correct ? | 0 Yes | 2 No |
WHAT IS FORCE COMPILE?
Star Schema vs. Snow Flake Schema. What is the best model for DW? Give example for both the models performance wise?
Hi guys, please design a job with derivation(solution). write exact conditions. My requirement Source table emp_no qualification 1 a 1 c 2 a 3 c 3 b Target table emp_no qualification 1 b 2 b 2 c 3 a Here every employer have three qualifications i.e a,b and c. what ever source table dont have some qualification, that will be move to target table. Like above. Hope u get the point. Thanks.
Hi,can any one please mention list of dimension and fact tables for Sales and Distribution System for a Pharmacutical company.
Explain the ChangeApply stage?
How to perform incremental load in datastage?
Define Data Stage?
Source contains the metadata source ----- hyderabad,chennai,bangalore by using nested loop sequence select source as hyderabad in target just run target as hyderabad only not others please give me answer thanks in advance(give reply how to wrote logic using nested loop sequence)
Hi friends,Two input files, wants to validate only if the reference data has '0' otherwise no validation should be done..how to do this??
Hi Vijay here For Four CPU's how many nodes will required?
Explain the situation where you have applied SCD in your project?
what is diff b/w datastage 8.1,8.5,8.7?