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Select D.tablespace_name,space "Sum_space (M)", BLOCKS Sum_blocks,Used_space "Used_space (M)", ROUND (NVL (used_space,0)/space*100,2) "Used_rate (%)",NVL (free_space,0) "Free_space (M)"From(SELECT tablespace_name,round SUM (BYTES)/(1024*1024), 2)

Asked by friends to optimize the performance of things, today a simple summary:The general Java system, the overall model is as follows:Complex systems may have multiple application server tiers, and simpler systems may not have application

This article is published in the "Programmer's Weapons Talk" edition of the No. 2007.03 edition of Programmers Magazine."Programmer": please talk about the skills of the good programmers you are positioning. How do you understand the programmer's

The timeout period has expired. The timeout has expired before getting a connection from the pool. This may occur because all pool connections have been used and the maximum pool size has been reached. Solutions1. Inside the code, turn off the

This article makes it easy for you to generate the relevant code for accessing the database via Ibatis based on the database table First, to obtain Http://ibatis.apache.org/abator.html Second, the download after the package to the

Recently in the company to get an online mall, find a PHP open source project, will build the process forward (I follow this process, build success) 1.XAMPP is an easy to install Apache distribution that contains MySQL, PHP, and Perl. XAMPP is

Many socket programming beginners may encounter the problem: if the first CTRL + C to end the server program, restart the server will appear address already in the use of this error, or your program in the normal shutdown server socket still have

14 Steps to complete SharePointServer2010 Enterprise Edition installation PS: Feel the whole installation process is still very smooth and installation speed is very fast, good words about half an hour to fix. Article topic: SharePoint Server2010

The error occurs because a read cursor reads less than one or more columns during the execution of a stored procedure operation. However, this does not seem likely to happen because the compile phase will be an error. The following shows the

These days glad did not update the blog in time, one is due to the day work in the lock is more complicated, and second consecutive watched the two-night SMTP protocol. I prefer to use practice to prove everything so that I can deepen my

MXF (Material Exchange format) is a file format used to exchange program footage between a server, a tape stream device, and a digital device. The content of the MXF can be a complete program, or it can be a complete package or sequence. The basic

References: https://cwiki.apache.org/confluence/display/Hive/GettingStarted 1. Install Hadoop and start. Reference resources: single-node:http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/ multi-node:http://www.

Original: http://space.itpub.net/189512/viewspace-701939 BackgroundOracle 10.2.0.4 is running on a machine, and a full DB backup of Oracle is included with the TSM for database5.5.1, including an archive log.The Oracle 10.2.0.4 code is installed on

Dim objconnection ' Connection object instanceDim objRecordSet ' Recordset object instanceDim objcommand ' Command object instanceDim strconnectionstring ' connection string ' ********************************************************************'

In order to synchronize n front-end data through the memcached to complete the data through, but brought some new problems: Using Ibatis to consolidate the memcached,ibatis generates a unique identity for each server, causing the same data SQL to

(1) When the record does not exist, the Get method returns the Null,load method to produce an exception (2) The Load method can return the proxy class of the entity, and the Get method returns the true entity class (3) The Load method can take

1. Transaction is divided into two types, local Transaction and Global Transaction. Involves a connection commit, called the local Transaction. A commit that involves multiple connection, called the global Transaction. The landlord mentioned is that

Start MongoDB Yesterday, according to the official example to do, did not specify any of their own parameters, completely using the MONGO default path and parameters to install, if there is no root, the default path of the database can not be

Learn how to build a faster web site through fiddler. In this article, we'll use Fiddler to explore HTTP performance, caching, and compression. If you have not installed and configured Fiddler, please start with the first article. Overview of HTTP

Recently, when configuring Oracle 10G streaming replication environment, a problem was encountered, after shutting down the database (shutdown immediate), the database was connected via SQL Plus: Conn sys/his@orc0 as SYSDBA, the following error