DWQA User ProfilesureshQuestions(16819)Answers(17164)Posts(0)CommentsWhat is regression testing and why is it important in manual testing?suresh answered 7 months ago • Manual testing76 views1 answers0 votesWhat is the difference between WHERE and HAVING clause in SQL, especially in Oracle?suresh answered 7 months ago • Oracle62 views1 answers0 votesWhat is the difference between TRUNCATE and DELETE in Oracle?suresh answered 7 months ago • Oracle74 views1 answers0 votesWhat is a PL/SQL cursor and how is it used in Oracle databases?suresh answered 7 months ago • Oracle67 views1 answers0 votesHow do you optimize SQL queries for better performance in Oracle databases?suresh answered 7 months ago • Oracle82 views1 answers0 votesWhat is the difference between RMAN and traditional backup methods in Oracle database?suresh answered 7 months ago • Oracle89 views1 answers0 votesWhat strategies is your company implementing to stay ahead of competitors in today’s rapidly evolving market?suresh answered 7 months ago • Company64 views1 answers0 votesCan you explain the differences between PL/SQL and SQL, and provide an example of when each would be used in an Oracle database environment?suresh answered 7 months ago • Oracle60 views1 answers0 votesWhat are the different types of joins in Oracle SQL?suresh answered 7 months ago • Oracle56 views1 answers0 votesWrite a query to find the second highest salary from an employee table.suresh answered 7 months ago • Oracle64 views1 answers0 votesCan you explain the difference between ROW_NUMBER(), RANK(), and DENSE_RANK() functions in Oracle?suresh answered 7 months ago • Oracle74 views1 answers0 votesCan you explain the difference between a cursor and a ref cursor in Oracle?suresh answered 7 months ago • Oracle86 views1 answers0 votesWhat is the difference between UNION and UNION ALL in Oracle SQL?suresh answered 7 months ago • Oracle73 views1 answers0 votesCan you explain the difference between a function and a procedure in Oracle?suresh answered 7 months ago • Oracle67 views1 answers0 votesWhat are the different types of indexes available in Oracle databases?suresh answered 7 months ago • Oracle65 views1 answers0 votesCrop