what is use of materialized view in oracle

OCI: To install the Oracle client, the portability is slightly poor, the theoretical performance is betterTHIN: Belongs to TYPE4, pure Java implementation, good portability, theoretical performance slightly worseRecommendation: It is best to use thin driver bar, transplant b

Use of Logminer =========================================================== Author: Tolywang (http://tolywang.itpub.net) Published in: 2005.01.19 11:03 Category: Oracle database Management Source: http://tolywang.itpub.net/post/48/14593 --------------------------------------------------------------- Logminer is a tool that every DBA should be familiar with, when

Use of Logminer =========================================================== Author: Tolywang (http://tolywang.itpub.net) Published in: 2005.01.19 11:03 Category: Oracle database Management Source: http://tolywang.itpub.net/post/48/14593 --------------------------------------------------------------- Logminer is a tool that every DBA should be familiar with, when

Oracle databases are very different from MSSQL data operations, but there are analogies in mirroring operations. This article is about how MSSQL database mirroring is implemented in Oracle databases, and what differences exist between them. First, the mirror database in the

How can I view the current number of connections in Oracle? You only need to use the following SQL statement to query it. Select * from V $ session where username is not null Select username, count (username) from V $ session where username is not null group by username

Many services are installed when you install Oracle 9i under the Windows operating system--and some of them are configured to start when Windows starts. When Oracle runs under Windows, it consumes a lot of resources, and some services may not always be needed. You will find it useful to shut down the database quickly and completely without using the Windows graphical interface.As long as you have administra

Replay eygle's example in the speech at the Oracle conference to see what is the master's starting point and face, replay eygle In his speech at the just-concluded Oracle conference, the company demonstrated the optimization of vertices and surfaces through a simple UPDATE statement,

What is annotation, how to use annotation, why is annotation used, and why is annotation used Annotation Annotation can be seen as an extension template for a class/method. Each class/method is annotated with different parameters

What is the framework and why it should be used. what does the framework solve. I just learned it. place a simple select result on the webpage. simply write the php code. what is the framework used. the entire framework has a lot of code and does not understand it. the ghost

Module allows Windows PowerShell scripts and functions to be organized into stand-alone units. You can package cmdlet, providers, scripts, functions, and other files into modules that you can distribute to other users. It is more convenient for users to install and use modules than to install and use the Windows PowerShell snap-in. Modules can include any type o

) {try {conn.close (); The catch (SQLException e) {}}} This is the traditional practice, but also the previous non-Java programmers (such as Delphi, VB, etc.) common practice. This is generally not a problem in a small-scale development process, as long as programmers are familiar with the Java language, understand JDBC technology, and MySQL, they can quickly develop the appropriate application. Problems wi

Use Flashback to view Oracle Table historical moment data1. View the table history moment dataSELECT * from Tab_test as of TIMESTAMP to_timestamp (' 20140917 10:00:00 ', ' yyyymmdd hh24:mi:ss ');2. Use Flashback table to restore the tables to a certain time in the pastALTER

What is memcached? Memcached is a set of distributed memory object caching systems developed by danga.com (the technical team of operations LiveJournal) to reduce database load and improve performance in dynamic systems. Many people use it as a storage carrier of the same form as sharedmemory, although memcached uses

What is the function of this use of floating-point arithmetic in PHP? What is the function of this use of floating-point arithmetic in PHP? Please take a look at the example of floating point arithmetic in Baidu Encyclopedia firs

even the directory is deleted, periodically empty the inside of the garbage can be. There is also the temporary file in the Word installation directory, when you use Word, do not delete them, these ~ beginning, tmp end of the file is the Word program to use, many in the re

Oracle software generally uses the host name to allow the client to directly enter the host name of the server rather than the IP address network to connect to the server. To achieve this goal, you need to map the Host Name and IP address into a ing entry. In Windows, the rtlIPv Oracle software generally uses the host name to allow the client to directly enter the host name of the server rather than the IP

cooling fan, so we can see that the independent graphics card technology is also more advanced than integrated graphics, more than the integrated graphics can be better display and performance, easy to video card hardware upgrade , the disadvantage is that the system power consumption has increased, heat is also larger, more suitable for the configuration displa

A motto for making a product. Don't always think about what technology I must use. The simplest jsp+jdbc can also make great products.Especially in the initial stage of the product, it is difficult for you to prepare a perfect architecture before the development, you choose the technology is not always up-to-date,

1, architecture, DB2 examples and database keyword separation practices, I am still a comparative favorite, because the instance can be created multiple, the recovery of the database directly to the instance can be, relatively more than Oracle. 2, Management things, DB2 management things do too rough, control center can only say can use it, and there are a lot of bugs, not as good as Oracle's company manage

Article Source: http://blog.csdn.net/haiross/article/details/383796151 Oracle: Table name, field name, constraint name are limited in length2 3 naming rules for Oracle:41, to start with a letter52, contains letters and numbers, and # $63, cannot exceed 30 characters7 8 This is the limitation of Oracle! 9 Ten database t