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Tuesday, April 4, 2017

NULL Handling in Sequential File Stage



DataStage has a mechanism for denoting NULL field values. It is slightly different in server and parallel jobs. In the sequential file stage a character or string may be used to represent NULL column values. Here's how represent NULL with the character "~":

Server Job:
1. Create a Sequential file stage and make sure there is an Output link from it.
2. Open the Sequential file stage and click the "Outputs" tab ans Select "Format"
3. On the right enter the "~" next to "Default NULL string:"

Parallel Job:
1. Create a Sequential file stage and make sure there is an Output link from it.
2. Open the Sequential file stage and click the "Outputs" tab ans Select "Format"
3. Right click on "Field defaults" ==> "Add sub-property" and select "Null field value"
4. Enter the "~" in the newly created field.





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