What are the advantages of Mysql comparing with oracle? Which version of MySQL supports Subquery? What is SERIAL data type in MySQL? Explain about database design? How to display nth highest record in a table for example?How to display 4th highest (salary) record from customer table? What does “tee” command do in MySQL? How we [...]

1. Which will be faster out of these two queries – one with OR or one with IN? 2. Where does MyISAM cache table records? 3. Which will be faster out of queries with explicit INNER JOIN and implicit one? 4. Is InnoDB faster/better than MyISAM? 5. Is CHAR faster than VARCHAR? 6. Is VARCHAR(80) [...]