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What is difference between Oracle 11g and 12c?

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What is difference between Oracle 11g and 12c?

The main difference between Oracle 11g and 12c is that the Oracle 11g is an older version of Oracle RDBMS and has no pluggable databases while Oracle 12c is a newer version designed for the cloud and has pluggable databases.

Can one Oracle database have multiple instances?

You’ve just described Oracle Real Application Clusters (RAC) 😉 This enables you to have multiple instances point at a single database. Installing and configuring it is very different to single instance.

Can you have multiple instances to access one database?

A database can be opened (or mounted) by more than one instance, however, an instance can open at most one database.

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What is the difference between database and instance?

While the database includes the application data and metadata stored in physical files on a server, an instance is a combination of the software and memory used to access that data. For example, if you sign in to an Oracle database, your login session is an instance.

What is the difference between schema and instance?

Physical Schema – It describes the database designed at physical level. View Schema – It defines the design of the database at the view level….Difference between Schema and Instance :

Schema Instance
It is the overall description of the database. It is the collection of information stored in a database at a particular moment.

How can we use two databases to a single application?

so, based on user login, the application should connect different database server. For Ex: if user “xxx” login with credential and belogs to “ABC” company and the database is “ABC”, then ABC data need to display on the web page.

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Why do we need multiple instances?

You might want to have multiple instances to create the following environments: Separate your development environment from your production environment. Separately tune each environment for the specific applications it will service. Protect sensitive information from administrators.

What is difference between Oracle 11g or 9i?

The following are the major differences between Oracle Internet Directory 9i, 10, 11g: 1. Creation of Instances and management of Processes – in 9i, 10g and older releases storage of information for configuring an instance of Oracle internet Directory is in configuration set with DN of this form; cn=configsetN,cn=osdldapd,cn=subconfigsubentry. In new the new release of 11g the procedure of creation of an instance has changed to this form; cn=componentname,cn=osdldapd,cn=subconfigsubentry

How to download Oracle 12c?

Select on the following item (s) that you want to download. 32-bit version 64-bit version

  • Once you are in the Box environment,click on the download button on the top right of the screen.
  • When you are prompted to download the client,choose to Save the file to an easily accessible location on your computer’s hard drive.
  • Once the download is complete,you can continue to the installation process.
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    What is Oracle 11g?

    Oracle 11g is an RDBMS that is easy to install, manage and develop. It consists of an intuitive, browser-based interface to manage databases. Users can perform multiple operations using Oracle 11g. They can create tables, views, and other database objects.

    What is Oracle Enterprise Manager 12C?

    Oracle Enterprise Manager 12c allows you to manage your existing IT systems, thereby saving you some money, and to simplify things by moving the management of both your traditional IT systems and cloud systems all in one place.