Oracle 11g on July 11, 2007 11 O'Clock (Beijing time 11th 22 o'clock) officially released, 11g is Oracle 30 years to release the most important version of the database, according to the needs of users to achieve information lifecycle management (information Lifecycle Management) and many other innovations.
I. Outline of new features
1. Database Management Secti
BKJIA featured translations] in the previous articles, BKJIA briefly described several new features of Oracle 11g R2, referring to the Oracle 11g topic ). Finally, let's make a summary to introduce some of the new features in Oracle 11g R2, which are not very large, but also
New Features of Oracle 11g: User rename
Oracle Data is constantly changing during project development. Therefore, we need to regularly import the development database to the test database. The common practice is "trilogy :"
1. Export data from exp in the Development Library
2. Delete the Test Database User
3. Use imp to import exported data to the Test Database
T
The following articles mainly introduce the features of Oracle training (OCA) courses, including the faculty of the school, the course services of OPENLAB Oracle training, and the enterprise practice projects, the specific content is found in the following article.
Features of Ora
common platform that new PE Ople to the world of databases would use. By which, I mean people installing at home. For new corporate users, the odds are good that they won't have a choice of either OS or database so a comparison is PO Intless.
Versions:
PostgreSQL 8.0-postgresql 8.0 is a very new product. I chose 8.0 as it is the latest version and it natively supports Windows. This is the "the" is "the" the "does" actually support Windows without an emulator or third-party.
Mysql-mysql 5.0 is a
Tags: Oracle 18C new featuresThe Oracle 18c was released in 2018-02-16 or with Oracle's cloud first concept, and 18c is now available on cloud and engineered Systems. Oracle 18c claims to be an autonomous database that reduces the work of many DBAs, and does a lot of DBA work worry about their work being impacted? In fact, the
Oracle
Introduction to the new features of Oracle 10G I release (next)
by Fenng 2003-07-10
NOTE: Recently Oracle has officially announced that this version of Oracle named 10G, where G is the meaning of the grid. hereby correct.
The strengthening of high availability
1.
you are granting permissions directly to a user, you must update each user account individually.
After you complete the preceding steps, you can configure your PHP application to use the Cms_user account for all database connections that are requested by anonymous Web users, and use the Cms_editor account for connections raised by password-protected administration pages. Now, even if a public Web form is attacked, the impact on the database will be minimal because the Cms_user account has only
,update,delete on web_content to writer;
To give user roles:
GRANT reader to Cms_user;
GRANT reader to Cms_editor; (They need to read too)
GRANT writer to Cms_editor;
Note that if you change the definition of the READER role, those changes affect all user accounts that have that role. If you are granting permissions directly to a user, you must update each user account individually.
After you complete the preceding steps, you can configure your PHP application to use the Cms_user account for all
magazines, e-commerce websites, and enterprise intranets.
The most common design method for building these types of Web applications is to integrate security policies into the business logic of Web applications, that is, the application determines whether a user has the right to access a data in the database. In this case, the database role only stores data and provides data as requested. In other words, if the Web Application Command database provides specific information, the database will di
default, both attributes are set to 10.1. to use new features, you must promote these attributes.
Setting the compatibility attribute to an earlier version allows the client to access a later version of the disk group. For example, the Oracle 10g client can access the Oracle 11g ASM disk.
The Compatibility attribute settings of the ASM and
Oracle database backup and recovery is not accessible to every Oracle database administrator. Oracle Database Backup has three methods, each of which has different recovery features. Therefore, you should integrate database and file system backup, logical backup, and physical backup.
I.
We have provided an overview of the unique features of Oracle 11g R2. At the same time, we also describe the enhancement of the data warehouse performance related to Oracle 11g R2. The following describes the enhanced features of Data guard in Oracle 11g R2:
The backup datab
Databases are mainly used to partition different types of databases. In actual applications, most Oracle databases use the Partition Function to improve query performance. The Oracle 11g partition function can simplify the daily management and maintenance of databases, this greatly reduces the workload of DBAs (Database Design and Management Engineers.
The new features
accessing local sequences• DMLs to local temporary tablesTypical Active Data Guard:• Single-instance physical master database and single-instance physical slave Database• The master database is Oracle Real Application Clusters (Oracle RAC), and the slave database is a single instance.• RAC master database and RAC slave DatabaseFor how to configure Oracle Data Gu
We know that every RDBMS has its own characteristics in SQL. So today, let's take a look at what features Oracle has.
Meaning.
Feature 1:Oracle analysis functions and window functions:Syntax:
Function_name (Over (For example:Sum (SAL) over (partition by deptno order by ename rows ...)Where sum is the function name,Over () is a keyword. The direct point is to add
New Features of Oracle DB 12c: raw device bare devices are no longer supported, oracle12c
New Feature of Oracle DB 12c: raw device is no longer supported.
Reference:Announcement of De-Support of using RAW devices in Oracle Database Version 12.1 (Doc ID 578455.1)
Details:De-Support of RawThe directory in this article in
One: Multitenant Architecture (12.1.0.1)Multi-tenant architecture is the new heavyweight feature of Oracle 12c (12.1), built-in multi-tenancy (multi-tenancy), a container database (container) that can hold multiple pluggable Databases, Each pluggable database is independent of the other pluggable database.For external applications and developers, pluggable databases looks like a single database before the normal 12.1 version. The DBA can connect to th
Bindingvariable, sharedbufferpool, and SGA
Binding variable, shared buffer pool, and SGA
Binding variable, shared buffer pool, and SGA (system global area );
Before developing a database system, who knows a lot about the Oracle system, especially its features? It seems very rare. For Beginners, this is even more impossible; with a simple understanding of the SQL writing method, we started database deve
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.