A. Wrap an IF() function around the SUBFIELD() functions to check and adapt to null values

B. Instruct the developer of the QVD file to correct the generation of the ConcatKeyAlpha field

C. In the SUBFIELD function, replace the '_' with a '|' or '_' character.
While debugging an app, a developer loads data from an application layer QVD file.
In theprocess of separating a concatenated key into two parts, some split results are missing data What should the data architect do?

D. Instruct the developer of the QVD file to correct the generation of the ConcatKeyAlpha field

E. Wrap an IF() function around the SUBFIELDQ functions to check and adapt to null values character

F. Utilize a combination of LEFT(), MID(), and RIGHTO functions to capture the key components

G. In the SUBFIELDfunction, replace the '- with a '|' or '-' character

H. Utilize a combination of LEFT(), MID(), and RIGHT() functions to capture the key components