https://en.wikipedia.org/wiki/Binary-coded_decimal#Packed_BCD https://en.wikipedia.org/wiki/Binary-coded_decimal#Packed_BC... Earlier than the 60s. Had to wor

https://en.wikipedia.org/wiki/Binary-coded_decimal#Packed_BCD https://en.wikipedia.org/wiki/Binary-coded_decimal#Packed_BC... Earlier than the 60s. Had to work on a system in the 90s to “transpile” IBM minicomputer code to C. Useful for accounting since what you see is what you get as far as cents and other decimals go. 1/5, and thus 1/10, can only be approximated in floating point. Not that I’m defending MySQL