Working with calculated columns
Calculated columns are columns of data that you can add to the query result set.
Having access to the appropriate syntax reference information and function reference information before using the calculated column feature will help you to build expressions more quickly.
For information about syntax, see Syntax for calculated column expressions in the reference section of the User help.
For a list of all available functions, including the functions for calculated columns, see Functions for calculated columns in the reference section of the User help.