Need difference set of data from rule input, local variable.

the cheap and easy way would be to use the difference() function.  It's probably picky about your data type, so it might be necessary to cast the local variable as the CDT type before passing it through that function.  Also note that it would return a difference even for the tiniest change in data.

Hello swapnar6405,

You can use symmetricDifference() to get the unique values that are there in both set A and set B.

Here is an example

a!localVariables(
  local!data1: {
    a!map(name: "kevin", age: "23", gender: "Male"),
    a!map(name: "Rambo", age: "26", gender: "Male"),
    a!map(name: "Jude", age: "33", gender: "Female"),
    a!map(
      name: "Michelle",
      age: "21",
      gender: "Female"
    )
  },
  local!data2: {
    a!map(name: "kevin", age: "23", gender: "Male"),
    a!map(
      name: "Fracesca",
      age: "22",
      gender: "Female"
    ),
    a!map(name: "Jude", age: "33", gender: "Female"),
    a!map(name: "Martin", age: "53", gender: "Male"),
    a!map(
      name: "Michelle",
      age: "21",
      gender: "Female"
    )
  },
  local!unique: symmetricdifference(local!data1, local!data2),
  { local!unique }
)

Thanks Chaitanya for your quick help with example.