What is Oracle 12c database?

Oracle Database 12c is a relational database management system (RDBMS) designed for both on-premises and cloud uses and deployable on a choice of clustered or single servers. It provides comprehensive features for managing data in transaction processing, business intelligence and content management applications.

What are the components of Oracle architecture?

Oracle Architecture and Components

  • SHARED POOL:
  • BUFFER CACHE:
  • REDO LOG BUFFER:
  • LARGE POOL:
  • Log Writer Background Process (LGWR):
  • DB Writer Background Process (DBWR):
  • CheckPoint Background Process (CKPT):
  • Recovery Background Process (RECO):

What is difference between 11g and 12c in Oracle?

Oracle 12c is just upgraded version of the Oracle 11g with some new features like cloud support and pluggable database, kind of like master slave architecture. With the Oracle 12 c, you can plug your database to cloud anytime. It has multiple new features like JSON support, multitenant architecture and etc.

What is difference between 12c and 19c?

Oracle Database 18c is Oracle 12c Release 2 (12.2. 0.2). Oracle Database 19c is the long-term support release, with premier support planned through March 2023 and extended support through March 2026. Oracle 19c is essentially Oracle 12c Release 2 (12.2.

What is Oracle 12c features?

Security. Data Encryption, Hashing and Redaction. Database Security Enhancements. Encryption Key Management Enhancements. Improve Security Manageability, Administration and Integration.

What is new features in Oracle 12c?

In Oracle 12c, the precision has been increased up to 32767 bytes or 32K. The new string data types will be known as Extended String Types in Oracle 12c. The feature is controlled by an initialization parameter MAX_STRING_SIZE. The database must be in upgrade mode to enable this feature.

What is the difference between Oracle 12c and 19c?

What is SGA and PGA in Oracle?

System global area (SGA)—A shared memory area that contains data buffers and control information for the instance. The SGA is divided into separate buffer areas and data pools. These are described in “SGA Components”. Program global area (PGA)—A memory area used by a single Oracle server process.