Showing posts with label ongoing. Show all posts
Showing posts with label ongoing. Show all posts

Tuesday, March 20, 2012

Referencing the temporary Dataset in Lookup control SQL

Does anyone know how to reference the ongoing dataset within the dataflow in sql?

So here is the scenario I have.

1) OLE DB SOURCE
2) Lookup a value and that column gets added to the dataset
3) Lookup another value but this time I would rather code the sql rather than select a referencing table. How do I reference the current dataset?

Thanks,
ChestonI'm not clear on what you are trying to do.

You can use SQL in a lookup transformation. You can even build a lookup table with literal values in SQL in that lookup transformation without hitting a table.|||Let me see if I can be more clear on what I am trying to do.

Table 1 - Ole DB source control
Lookup 1 - Reference another table and based on keys add a foreign key
Lookup 2 - I wish to perform a sql statement to update the newly added foreign key from lookup 1 to a default value if it is null. How do I reference the dataset?

So in the Lookup 2 I select SQL query:
Update dataset set foreign key = 0 where foreign key is null

Then continue on with the dataset with more lookups/transformations.

Does this help?

Cheston|||Use a derived column transformation to set that column to 0 if it is null.