Tag: Lookup

Informatica Powercenter : SQL Hints in lookup SQL Override

By default you cannot use the following characters in an lookup sql override : ‘/*’ Because of this you cannot enter SQL Hints. You will get an error message when running your mapping. This is because the informatica parser doesn’t recognize these special characters. To enable SQL hints in a lookup sql override you can …

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Informatica Powercenter : UNION in Lookup SQL Override

A couple of weeks ago I came across something strange when using a SQL Override in a Lookup that contained a Union. For example :   SELECT VARCHAR_A VAR ,          NUMBER_B  NUM FROM TABLE_A UNION SELECT VARCHAR_C VAR ,          NUMBER_D NUM FROM TABLE_B When you use VAR in your lookup condition, Powercenter rewrites the query when it …

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