Articles tagged

09 January 2017
09 January 2017

Oracle Data Type Implicit Conversion Hierarchy

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In Oracle, under certain circumstances, an implicit data type conversion precludes the use of indexes. Perhaps you have a vague idea of what an implicit data type conversion hierarchy is, and you might even ignore the subtlety of the implicit data type conversion direction within a query predicate expression. Hopefully this article will shed some light on this concept. 1… Read more
02 July 2012
02 July 2012

Working with SSIS Data Types

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In order to be able to take data from a variety of sources, manipulate it, and then export it to one of several destinations, SSIS has to use its own data types. Generally, the conversions of data types is handled implicitly, but if you hit problems, then you may need to intervene in one of several ways to ensure an appropriate conversion.… Read more