A family of Microsoft relational database management systems designed for ease of use.
Hi, Jessica
IIF([Production Date] >= #1/21/14#,"New Hire",
IIF([Production Date] >= #10/22/13# and [Production Date] <= #1/20/14#,"W",
IIF([Production Date] >= #7/16/13# and [Production Date] <= #10/21/13#,"X",
IIF([Production Date] < #7/16/13# ,"Y",
IIF([Production Date] Is Null,"Z")))))
or also
IIF([Production Date] >= #10/22/13# and [Production Date] <= #1/20/14#,"W",
IIF([Production Date] >= #7/16/13# and [Production Date] <= #10/21/13#,"X",
IIF([Production Date] < #7/16/13# ,"Y",
IIF([Production Date] Is Null,"Z","New Hire"))))
The IIF structure is: IIF(condition,what do if true, what do if false)
Bye Mimmo