Microsoft's SQL Server has a handy command that rebuilds all indexes in a table. Oracle users typically rebuild each index in a table individually.

* we can create index key for multiple columns of an database table. * Actually when we create an index on database column of table oracle internally scattered the data into "balanced tree". * we can ...

In this paper, a query optimization method and its SQL statements for a web BBS are proposed using Oracle's new facilities – a window-based analytic function and a function-based index. Also, the ...