The syntax for these functions is:
Left(stringexpr,n)
Right(stringexpr,n)
Mid(stringexpr,start,n)
The stringexpr argument can be either a field name (enclosed in brackets) or a text expression; n is the number of characters you want to extract; start is the position of the first character you want to extract.
The following table shows examples of these functions.
If the value in Part ID is |
This expression |
Returns |
---|---|---|
BA-7893-R12 | Left([PartID],2) | BA |
BA-7893-R12 | Right([PartID],3) | R12 |
BA-7893-R12 | Mid([PartID],4,4) | 7893 |