Interested to Buy Any Domain ? << Click Here >> for more details...
Tell me Wt main advantage of Stage varibles?
Project level hints?
- 4 Answers
- 14416 Views
- Hexaware, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ramjanaki
The main advantage of Stage Variables is to reduce the
repetition of the code for all the required columns in the
Transformer.
Say for Example, if you are having 10 lines of code to
be used for all the derivations of columns in the
transformer, we declare a Stage variable once and we assign
these 10 lines of code to that variable and can place this
Stage variable where ever needed in the derivation of the
columns in the Transformer Stage. Th scope of these
variables is limited with in the stage it is created.
| Is This Answer Correct ? | 12 Yes | 0 No |
Answer / pavan
The simple meaning of a stage variable is just like a
global variable.During processing the execution starts with
stage variables then contraints and then to individual
columns.If ever there is a prerequsite formulae which can
be used by both contraints and also individual columns then
we can define it in stage varaibles so that it can be
processed once and can be used by multiple records.If ever
we require the formulae to be modified for each and every
row then it is advisable to place in code in record level
than stage variable level
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / brajesh
1. it can be used as global variable
2. It can be used for some preproceesiing operation
required for some constarint or records(columns).
3.It can be used to store the previous rows processed data
which can be used by next coming row.( its one of the
programming tactic )
Also the order of stage variable matters , it will execute
in the order they apeared on its palate.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / giri
The advantage of stage variables mainly used for
manipulation purpose.
| Is This Answer Correct ? | 0 Yes | 4 No |
How to transfer file from one system to another system in UNIX?which command to be use?
Parallel job contains more than 20 stages. I want to find out which stage is more performance incentive.
what is the diff b/w switch and filter stage in datastage
Can aggregator and transformer stages use to sort the data? How ?
can we see the data in fixed width file? how can u change the datatype of fixed width files?
How do you load 10 different sources with 10 different layouts to 10 different tables?
how to use self join using datastage ? can u tell me using stage how can we implemnet the self join
how to change left and right links in join stage?
What are the different plug-ins stages used in your projects?
while we using change capture stage we have to be take two table thats are 1.before table 2. after table . what is before table and after table please give me clear notation Thank You very much in advance
What is the difference between hashfile and sequential file?
what is the difference between == and eq in UNIX shell scripting?
Teradata 
