Creating expressionsPopular functionsTextDate/timeDomain Use the Expression Builder Introduction to expressions Build an expression Guide to expression syntax Examples of expressions String functions and how to use them Access Functions (by category) Type Conversion Functions IIf Function MsgBox Function NZ Function IsNull Function Count Function Round Function InputBox Function Array Function Val Function Format Function InStr Function Mid Function LTrim, RTrim, and Trim Functions Replace Functions StrConv Function Date Function DateAdd Function DateDiff Function DatePart Function DateSerial Function DateValue Function Month Function Now Function Weekday Function DLookup Function DSum Function DMin, DMax Functions DFirst, DLast Functions DCount Function