Quick overview of Oracle database version updates: Learn about the features of the latest Oracle version

A quick overview of Oracle database version updates: To understand the features of the latest Oracle version, specific code examples are required

Oracle database has always been the leader in the field of enterprise-level database management systems. Continuously updated versions to provide better performance, security and functionality. This article will take you through the latest Oracle database version, discuss its features, and demonstrate its application through specific code examples.

1. Oracle 19c

Oracle 19c is the latest stable version, released in 2019. It provides many new features and improvements, including automatic index management, enhanced Real Application Testing capabilities, SQL execution plan management, and more. The following is a simple code example that demonstrates how to use the automatic index management feature:

-- 创建自动索引
BEGIN
  DBMS_AUTO_INDEX.CONFIGURE('AUTO_INDEX_MODE','IMPLEMENT');
END;
/

2. Oracle 18c

Oracle 18c is the first " Long Term Support Release" with improvements in performance, manageability, and security. One of the important features is Oracle Data Guard's enhanced capabilities such as scalability and flexibility. Here is a sample code that shows how to enable Oracle Data Guard:

-- 启用Data Guard
ALTER DATABASE ADD STANDBY LOGFILE GROUP 3 ('/disk1/stbyredo3a.rdo', '/disk2/stbyredo3b.rdo') SIZE 50M;

3. Oracle 12c Release 2

Oracle 12c Release 2 is a well-received version, introducing many new features, such as table space encryption, new JSON support, etc. The following is a simple code example that shows how to create an encrypted tablespace:

-- 创建加密表空间
CREATE TABLESPACE sensitive_data DATAFILE 'sensitive_data.dbf' SIZE 100M ENCRYPTION USING 'AES128';

4. Oracle 12c Release 1

Oracle 12c Release 1 is a An important step in database development, it introduces many innovative features, such as multi-tenant architecture, database memory adjustment, etc. The following is a sample code that shows how to create a Pluggable Database in a multi-tenant architecture:

-- 创建Pluggable Database
CREATE PLUGGABLE DATABASE pdb1 ADMIN USER pdbadmin IDENTIFIED BY pdbadmin ROLES = (DBA) DEFAULT TABLESPACE users;

Through the above quick overview, we can see that Oracle Database continues to launch new versions and introduce more powerful features and improvements. Being familiar with the features of these latest versions and understanding their application examples will help enterprises better utilize Oracle databases to manage data and improve system performance and security.

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