oracle add column to view

Methods for column encryption in Oracle 2011-12-22 17:21:13Category: LinuxOracle supports multiple column encryption methods:1, transparent Data encryption (TDE):CREATE TABLE Encrypt_col (id int,TXT VARCHAR2 (+) encrypt using ' algorithm name '

1. Enhanced add column descriptionIn Oracle 11gR1, Oracle enhanced the add column. Instructions on the official website:Http://docs.oracle.com/cd/B28359_01/server.111/b28279/chapter1.htm#NEWFTCH1 1.1 Enhanced add column FunctionalityDefault valuesof

I. general usage of Materialized views are a special physical table. Materialized views are relative to normal views. A common view is a virtual table, which has many application limitations. Oracle converts any View query to a view SQL statement

Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most

Oracle9i was released on Oracle Open World in October 2000, introducing many new features for Oracle databases, application servers, and development tools. Oracle9i is the industry's first complete and simple software infrastructure for a new

Racle text translation is one of the key technologies of intelligent information Management, Oracle text as a component of Oracle9i provides a powerful Full-text search function, use oracle9i to do background database, can make full use of its

In the past decade,OracleIt has become one of the most professional databases in the world. For IT experts, IT is to ensure that their company's productivity is improved by leveraging the powerful features of Oracle. One of the most effective

View The OCP question uses the conclusion: When you create a view, you must alias a column that uses a variety of functions, or an expression of an operation, and fails if the alias view is not created. The column names that define the view can be

Oracle database is one of the most complex databases so far. It is this complexity that allows Oracle databases to face a wide variety of business needs. But most of the time, database administrators have some skills to make database maintenance

Oracle Performance Analysis 5: Index Structure and scan mode of data access methods, oracle Index The previous article describes full scan. This article describes the index structure and scan methods, and describes each scan method later.When Oracle