Does anyone have any idea what this Asc function is doing (-64)? Thanks again in advance.
Access – IIF(Trim(NZ(MCATw)) = “”, 0, Abs(Asc(UCase(MCATw)) -64)) as MCATwNo
I don’t understand what the -64 is doing?
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Does anyone have any idea what this Asc function is doing (-64)? Thanks again in advance.
Access – IIF(Trim(NZ(MCATw)) = “”, 0, Abs(Asc(UCase(MCATw)) -64)) as MCATwNo
I don’t understand what the -64 is doing?
It’s probably converting the first letter of a string to a numeric value 1-26. The upper case letters A – Z have ASCII values of 65 – 90, so
ASC("A")becomes 65, and 65 – 64 is 1. Thus A – Z becomes 1 – 26. Assuming thatMCATwis a string,ASCwill only apply to the first character.