Technical Aptitude is based on SQL concepts JOINS and TYPES of JOINS, SUB QUERY ,VIEW and INDEX. Ask to give output of joins. Face to Face round with TL includes all basic concepts of SQL and your resume details. They do need and prefer Oracle Certified student. Also, asked some puzzle and all. PM round given scenario of technical question based on joins and asked some difficult SQL query like finding out nth higest salary, deleting duplicate records etc. HR checks your confidence level and communication skills
