What are the new features of Oracle 12c database?
New features in Oracle Database 12c Release 1
- Increased size limit for VARCHAR2, NVARCHAR2, and RAW datatypes to 32K (from 4K).
- We can make a column invisible.
- We can drop an index online.
- We can drop a constraint online.
- We can set unused columns online.
- We can make an index visible or invisible to Optimizer.
What are the new features in Oracle 12c for developers?
12 Things Developers Will Love About Oracle Database 12c Release…
- Looooooooooong Names.
- Robust Code using Constants for Data Type Lengths.
- Listagg Improved On Overflow.
- Lightning Fast SQL with Real Time Materialized Views.
- Fast Estimates with Approximate Query Enhancements.
- Verify Data Type Conversions.
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 are some features of Oracle Cloud 12c?
Robust and Extensible Architecture.
What are the major changes in architecture for 12c?
1) What are the major changes in architecture for 12c From 12c Onwards, the instance is shared with multiple databases. This multiple databases are self contained and pluggable from one database to another database. This is very useful methodology where database consolidation.
Is Oracle 12c a cloud?
Oracle Database 12c Release 2 (12.2), the latest generation of the world’s most popular database, is now available in the cloud, with Oracle Cloud at Customer, and on-premises.
Is Oracle Database 12c free?
Free Oracle Database for Everyone It is the same powerful Oracle Database that enterprises rely on worldwide, packaged for simple download, ease-of-use, and a full-featured experience. You get an Oracle Database to use in any environment, plus the ability to embed and redistribute – all completely free!
What is 12c database?
The Oracle Database 12c is a high-performance, enterprise-class database. According to Oracle, this is “the first database designed for the cloud.” Oracle Database 12c also introduces 500 new features to the database, most notably pluggable databases and multitenant architecture.
How can I upgrade from 12c to 19c?
Oracle 12c to 19c Database Upgrade
- Pre-upgrade tasks.
- Upgrade using DBUA.
- Upgrade using Manual Method.
What are the new features of Oracle 12c?
Oracle 12c New Features – Related to Performance Tuning : 1.Advanced Indexing Techniques : 2.Index Compression : 3.Approximate_Count_Distinct function to improve performance : 4.Automated caching for Big table : 5.Adaptive Query Optimization with online stat gathering : 6.In-Memory Aggregation : 7.Full Database caching :
What is data redaction in Oracle 12c?
This is one of the top features in Oracle 12C. Data Redaction in simple terms means, masking of data. You can setup a Data Redaction policy, for example SSN field in a Employee table can be masked. This is called redaction.
What is approx_count_distinct() function in Oracle 12c?
In Oracle 12c provides new function which is optimized function named APPROX_COUNT_DISTINCT() function.This function will process large volume of the data which is faster than exact aggregation.
What’s new in the new Oracle multitenant release?
The new release of Oracle Multitenant fully supports remote full and snapshot clones over a database link. A non-multitenant container database (CDB) can be adopted as a pluggable database (PDB) simply by cloning it over a database link. Remote snapshot cloning is also supported across two CDBs sharing the same storage.