SSIS : SSIS 2012 New Feature Parameters : Parameters Vs Variables.

SSIS Project deployment Model is the new feature in SSIS 2012 . with this feature we got new concept called parameters which is not there in previous versions . i just want want to give you simple difference between parameters and variables .

The simple and easy defination between the difference between Parameters and variables are

Parameters are read only and Vaibales are Read write ,

In technical terms we can even say Parameters are like constants and Variable are variables .

Parameters are just the values used in process and u cannot write back anything on those . but we can do with variables.

 Parameters of 2 types one Project parameter and 2. Package parameter .The differnce between these 2 are Scope . The Project parameter have higher scope that means it can used in any of the packages under that project  where as the Package parameter is very specific to that package .

For Example when to Use project parameter is when we  have common destination Sql server in all the packages of the project in that case we can use that parameter as project parameter so that we can use the same parameter in all the packages,

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