Why do we prefer views or materialized views.. I know views has advantages like restricting access to all columns for security but we can select few columns in MVs as well. Could you please suggest the advantages of MVs here.
Views and MVs have a set of distinct features/purpose for which they are existing. Please refer to the below links which give comprehensive and simple to understand the point by point differences between
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Cursors in Oracle:
A cursor is used to process individual rows returned by database system for a query.
In oracle every SQL statement executed by the oracle server has a private area. This area contains information about the SQL statement and the…
Using SQL Scripts we can save all the SQL queries as files that we use very frequently on our database later point of time. This is one of the feature present under SQL Workshop in Oracle Application Express.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
This video shows how to copy a database user from one database to another user DBMS_METADATA. It also shows how to copy a user's permissions and discusses password hash differences between Oracle 10g and 11g.