A businessperson does most of their work inputting data into an online database. Which design would most likely benefit this user?

If you found the mail[#] keyword in an evidence search, you could assume the user has access to the ________ webmail program

Fill in the blank(s) with correct word

If Col1 contains the string "Hello" and Col2 is Null, what is the result of SELECT Col1 + Col2?

A. "Hello" B. Error C. Null D. "HelloNull"