DAILYDBADIARIES

Oracle golden gate is a data replicant solution that is seperate from the oracle database.  It is a distinct product that needs to be install and configured separately and request its own licence.  This solution allows from the replication of the subset of data in one database to another subset of data in different database.  One of its most powerful future is to ability to replicate between none.  Oracle database such as replicating some tables in an Oracle database to some tables in SQL server and vice versa.  Another strong feature of this product is its PI directional replication capability.  You just can connect and make changes to data bases on either side whether it is the source or destination Database and golden gate takes care of implementing the changes on each database.  You might wonder about the difference between data card and Golden Gate while data guard also replicates data from the primary database to the standby database, Golden Gate...

 The database connected by the application user is called the primary database when data get this implemented there is another database running at a different site data guard Synchronizes any changes that happen in the primary database to the standby database located   If you are disaster occurs at the site hosting the primary database the service will fail over to the standby  database.  In in this case application users connect to the standby database instead of the primary database  When data guard is implemented by default the standby database cannot be accessed until your disaster occurs.  However there is an option in Oracle database called active data guard with this option application users can connect to the stand by database for read only operations.  This is useful for allowing users who generate reports to access the standby database rather than connecting to the primary database, which would put more load on it.

 RAC: a server for tolerance solution   To address server fault tolerance Oracle offers Oracle database RAC real application cluster options with this option a cluster of nodes collectively represent the database service.   The database service does not stop if one not in the cluster fails this solution is utilised by Enterprises that require high availability applications they cannot afford extended recovery times from backups when a server becomes faulty   Oracle database rack 10 seats between the single instance architecture and the real application cluster   Technical speaking it an active passive cluster solution   Only one not will be at the time if that note goes down for any reason the service fails over to another node and continuous providing it service   This solution is suitable for business that wants to take Advantage of the rak options, but at a lower cost than the full rac license.

Oracle database single instance architecture  Maine database runs on a single machine we referred to this architecture as the Oracle database single instance architecture this setup involves having one Oracle database instance running on the mission serving its clients   The term Oracle database instance simply refers to the combination of memory structure and database process that collectively represent the database service.  However this Architectire has a significant availability risk.  If anything goes wrong with the mission that database becomes UN available.

 • Free for the first year after buying the license • Payable on yearly basis afterwards • Oracle support benefits: - Resolving technical issues and answer technical questions - Obtain patches - Entitled to upgrade the database to the most recent release  Once you purchase an enterprise edition it includes free support from Oracle for 1 year.  After that year client needs to pay for Oracle support services on an annual basis   Oracle support is not just for resolving issues it also needed to download routine patches that should be applied on that data bases.   Additionally if a client continues paying for support each year they are entitled to upgrade their database to the most recent version for free  If you choose not to renew varieties support every year we can still use the database but you wont be able to download and apply patches or upgrade to the latest version

 • User Manager: client is responsible for updating the OS, installing, upgrading, and patching Oracle database software. • Co-Managed: Oracle database software comes pre-installed in the machines. Oracle provides tools to facilitate taking database backups, patching database software, upgrading database software, and providing disaster recovery. • Autonomous: fully automated database service that uses machine- learning (ML) for automatically tuning, scaling, and patching Oracle databases.

 Long Term Support Release - 5 years of Premier support followed by 3 years of Extended Support - Recommended for production databases - Currently is 19c ( PS ends April 30, 2024) - The next one is scheduled to be 23c Innovation Release - 2 year of Premier Support, no Extended Support - Recommended for studying the new features in development environments - Examples: 12c, 18c, and 21c  

 From here 1979 to 1983 Oracle version 3   In the year 1984 Oracle released version 4   In the year 1985 Oracle released version 5   In the year 1988 released version 6 introduced   row locking in this version  In the year 1992 Oracle released the version 7 introduced pl/sql storage programs in this version   In the year 1997 Oracle released the version 8 introduced objects and partitioning in this version   In the year 1999 Oracle released the version 8i internet compounding was introduced in this version   In the year 2001 Oracle released version 9iOracle rac was introduced in this version  In the year 2004 Oracle released version 10g introduced grid computing this version   In the year 2007 Oracle released version 11g introduced diagnosatability and availability    In the year 2013 Oracle released version 12c introduced the multitenancy and Cloud Computing in this version  ...