select phone_number, substr(phone_number, instr(phone_number, '.', 1,1)+1, instr(phone_number, '.', 1,2)-instr(phone_number, '.', 1,1)) melumat from hr.employees ...
General Instructions mentioned in the paper are as follows : (i) This question paper contains five sections, Section A to E. (ii) All questions are compulsory. (iii) Section A have 18 questions ...