To change the value of a variable, one of the following functions can be used within an expression: SETMAXVARIABLE($$Variable, value), SETMINVARIABLE($$Variable, value), SETVARIABLE($$Variable, value), SETCOUNTVARIABLE($$Variable), where: The format is $$VariableName or $$ParameterName Changing values of Variables To create a parameter or variable, go to Mapping -> Parameters and Variables from within the Mapping Designer in the Designer client. Variables can change in value during run-timeīoth parameters and variables can be accessed from any component in the mapping which supports it.The value of a parameter is fixed during the run of the mapping.Parameters are different from variables in the fact that: Each parameter and variable is defined with a specific data type and their main purpose is to provide increased development flexibility. Parameters and variables in Informatica PowerCenter PurposeĪ mapping can utilize parameters and variables to store information during the execution.
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