How to create a variable with few more variables in it

[KiranmaiP]

My situation is I need to create a variable where the variable value should be combination of other values i.e., from a certain table.
For example,
I need to create a variable name value where value consists field1 + / + (column label)field2 + / + (module label)field3.

These 3 fields are fields from certian table.
Please help me solving an creating which would run in Script perfectly

[Mark Manders]

What's the requirement behind the variables? Do you want an auto lookup from selection of field 1, filling field 2 and field 3, or is it free data that needs to be used to update/create a new record?