#DateForumTypeThreadPost
307 Jan 2016 @ 09:48 PSTDatabaseReplyHow could Cylinder index scan achieve the "select count(*) from table X" ?Thanks a lot for the output, Carlos!
229 Dec 2015 @ 06:46 PSTDatabaseTopicHow could Cylinder index scan achieve the "select count(*) from table X" ?As far as i know, since TD 13, CI is used for "select count(*) from table x" instead of full table scan. But from the manual,  CI stores below information , But i do not undertand h...
109 Mar 2014 @ 07:15 PDTDatabaseTopicData update cost for table with lots of columns or only a few columnsHi, Thanks for your viewing and appreciate your help ! I have a question regarding the Data update cost for table with lots of columns or only a few columns. for example, i want to udpate a...