There will be 5 round of the interview, 1.Written SQL aptitude which includes null,aggregate functions, joins and inbuilt functions like string etc. 2.second round will be face to face technical , where you will provide with the data sets and interviewer asks you retrieve data according to his needs. Mostly about joins ranks max min etc 3. Third interview will be puzzle round where you asked about problem solving skills of sorting , grouping, fibi series , searching , eliminating duplicates etc, you have to write the algorithm or pseudo code 4. Behavioral, where you will be asked with the how manage the pressure, how do you work in multiple projects, etc.. 5. HR it is to close the deal, about compensation, notice period etc