What must you take into consideration when you use the new open SQL syntax (available as of SAP Net weaver 7.4 SP05)? There are 2 correct answers to this question.
A . All arithmetic expressions can be used for all type of variables
B . All ABAP variables must be escaped with a proceeding @ sign.
C . All Keywords are case sensitive.
D . All fields in the GROUP BY clause must be separated by commas.
Answer: B,D