Question 290 Databases that store information about the state of real world along with timeline are A Temporal databases B Mobile databases C Multimedia databases D […]

Question 291 Which of the following is an index mechanism, where an index record appears for only some of the search key values? A Dense index […]

Question 293 The property which ensures “once a transaction completes successfully, the changes it has made to databases persist, even if there are subsequent failures” is […]