Datastage
8.5, 8.7 and 9.1 Differences
Changes/Enhancements
in IBM Datastage 8.5, 8.7 and 9.1
1. Design &
Runtime Performance Changes:
DS8.5: Implemented by Internal code change. Design
and Runtime performance is better than 8.1, 40% performance improvement in job
open, save, compile etc.
DS8.7: Improvements in Xmeta. Significant
Performance improvement in Job Open, Save, Compile etc.
DS9.1: No Change
2. PX Engine
Performance Changes :
DS8.5: Not Exist
DS8.7: Improved partition/sort insertion algorithm.
XML parsing performance is improved by 3x or more for large XML files.
DS9.1: No Change
3. Added View Job Log
in Designer client
DS8.5: Not Exist
DS8.7: New Feature has been added (Menu -> View
-> Job Log) .
Job log is now viewed
in Designer client.
DS9.1: No Change
4. Added Stop/Reset
buttons In Designer Client:
DS8.5: Not Exist
DS8.7: Stop/ Reset button added to Compile and Run
buttons for the DS jobs.
DS9.1: No Change
5. Interactive
Parallel Job Debugging
DS8.5: Not Exist
DS8.7: Breakpoints with conditional logic per link
and node.
(Link -> Rclick -> Toggle Breakpoint)
The running job can be continued or aborted by using multiple
breakpoints with
conditional logic per link and node. (row data or job parameter values can be
examined by
breakpoint conditional logic)
DS9.1: No Change
6. Added Vertical
Pivot : Pivot Enterprise Stage
DS8.5: Extended to current horizontal parallel
pivot. Enhanced pivot stage to support vertical pivoting.
(mapping multiple input rows with a common key, to a single output row
containing multiple columns)
DS8.7: No Change
DS9.1: No Change
7. Balance
Optimization :
DS8.5: Balanced Optimization is that to redesign
the job automatically with maximize performance by minimizing the amount of
input and output performed, and by balancing the processing against source,
intermediate, and target environments. The Balanced Optimization enables to
take advantage of the power of the databases without becoming an expert in
native SQL.
DS8.7: No Change
DS9.1: Balanced Optimization for Hadoop.
8. Transformer
Enhancements
DS8.5: Looping in the transformer, Multiple output
rows to be produced from a single input row. 1. New input cache:
SaveInputRecord(), GetSavedInputRecord().
2. New System Variables: @ITERATION, @Loop Count,
@EOD(End of data flag for last row).
3. Functions : LastRowInGroup(InputColumn).
4. Null Handling more Options.
DS8.7: No Change
DS9.1: New Transformation Expressions has
been added. EREPLACE : Function to replace substring in expression
with another substring. If not specified occurrence, then each occurrence of
substring will be replaced.
9. Big Data File Stage
:
DS8.5: Not Exist
DS8.7: Big Data File Stage for Big Data sources
(Hadoop Distributed File System-HDFS).
DS9.1: New Enhancement on
1. The IBM Big Data
Solution Integrate and manage the full variety, velocity and volume of data.
2. New Hadoop-based
Big Data Support Any to Big Data.
3. Big Data
Integration with DataStage.
10. Added Java
Integration Stage
DS8.5: Not Exist
DS8.7: Not Exist
DS9.1: Java code and creates baseline for
upcoming big data source support.
11. Added Encryption
Techniques
DS8.5: Not Exist
DS8.7: Encrypted because of security reasons.
1. Strongly encrypted
credential files for command line utilities.
2. Strongly encrypted
job parameter files for dsjob command.
3. Encryption
Algorithm and Customization.
DS9.1: No Change
12. Added Dual-stack
protocol Support
DS8.5: Not Exist
DS8.7: IPv6 Support: Information Server is fully
compatible with IPv6 addresses and can support dual-stack protocol
implementations. (Env Variable: APT_USE_IPV4.)
DS9.1: No Change
13. Added Unstructured
text stage
DS8.5: Not Exist
DS8.7: Not Exist
DS9.1: Excel read capabilities on all
platforms with rich features to support ranges, multiple worksheets and New
Unstructured data read.
14. Added DBMS
Connector Boost
DS8.5: Not Exist
DS8.7: Not Exist
DS9.1: New big buffer optimizations which
has increased bulk load performance in DB2 and Oracle Connector by more than
50% in many cases.
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