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 DataStage  |  Question 348 of 377    Print  
How can we load the flat file
How can i load a flat file into target as fast as i can?Assuming that the source bottleneck is not there,that is there is no performance issues in the source side.


  
Total Answers and Comments: 0 Last Update: February 15, 2008     Asked by: etl_bhargavi 
  
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Have you ever involved in updating the DS versions like DS 5.X, if so tell us some the steps you have taken in doing so?
Yes. The following are some of the steps; I have taken in doing so:1) Definitely take a back up of the whole project(s) by exporting the project as a .dsx file2) See that you are using the same parent 
Used for Look-ups. It is like a reference table. It is also used in-place of ODBC, OCI tables for better performance.     
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As the names itself suggest what they mean. In general we use Type-30 dynamic Hash files. The Data file has a default size of 2Gb and the overflow file is used if the data exceeds the 2GB size.  
Latest Answer : good explanation. ...
What are other Performance tunings you have done in your last project to increase the performance of slowly running jobs?
Staged the data coming from ODBC/OCI/DB2UDB stages or any database on the server using Hash/Sequential files for optimum performance also for data recovery in case job aborts.Tuned the OCI stage for 'Array 
Most of the times the data was sent to us in the form of flat files. The data is dumped and sent to us. In some cases were we need to connect to DB2 for look-ups as an instance then we used ODBC drivers 
What will you in a situation where somebody wants to send you a file and use that file as an input or reference and then run job.
A. Under Windows: Use the 'WaitForFileActivity' under the Sequencers and then run the job. May be you can schedule the sequencer around the time the file is expected to arrive.B. Under 

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