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Microsoft SQL Server 2012 Integration Services: An Expert Cookbook by Pedro Perfeito, Reza Rad

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Variables and data types

If you've got some experience building Integration Services packages, you probably already know that SSIS has its own representation of different data types. The names of these data types start with DT_, followed by the data type such as I for Integer, BOOL for Boolean, STR for String, and so on.

Each time we move data from a source to a destination, conversion between input and output data types is required. The following figure shows a list of the most used data types and their relationship between different environments.

Variables and data types

To get further details about SSIS data types , refer to the Working with Data Types in the Data Flow ...

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