available space

Understand the internal structure of B * tree index and the internal structure of tree Reprinted please indicate the source: http://write.blog.csdn.net/postedit/40589651 The B-tree index in the Oracle database is like an inverted-long tree, which

Android Hack1 uses the weight attribute to center the view, androidhack1 URL: http://www.cnblogs.com/wuyudong/p/5898403.html. If you want to center the button as shown in, and occupy half of the parent view, whether or not the screen is rotated Use

Soft RAID I. Concepts The stored data is separated and stored, and then staggered and stored on all disks that constitute the array. 1. The data read and write speed is greatly improved, but the read and write speed is lower than the total read and

I have introduced a lot about databases before, for example, using dynamic databases to access objects. Next I will explain how to reduce database management overhead. Connect to the application Each application needs to identify the database server

Flexbox is the abbreviation for flexible box, and the mainstream browser of the flexible box layout supportsThe Flexbox layout is a telescopic container (container) and a scaling item (item)The main idea of the Flexbox layout is that elements can be

How to clear System junk in Android G1 Mobile phones have been used for a long time, and some System junk data will inevitably appear. The available memory of G1 is not large. If the space is eroded by these junk files, we will have a smaller

Flexboxis a layout module, not a simple property, which contains the attributes of the parent and child elements.FlexboxThe main idea of the layout is that elements can be resized to fit the available space, and when the available space becomes

For the select model of windows socket programming, socketselect Int select (Int nfds, // ignore fd_ser * readfds, // point to a socket set, used to detect its readability fd_set * writefds, // point to a socket combination, used to detect the write-

People who use computers now know about floppy disks, but do you know that new floppy disks can't be used directly? (This concept is a bit outdated, because there are many manufacturers of floppy disks are first to help you format it, but the order

Optimizing Windows Server Disk Performance In the use of a single server, disk often occupies a very important position. Server disk configuration and maintenance have a significant impact on the performance of the server as a whole. In fact, the

First, OCR Check Ocrcheck [Root@rac1 app]# Ocrcheck Status of Oracle Cluster Registry is as follows: Version:3 Total Space (Kbytes): 262120 Used Space (Kbytes): 2424 Available Space (Kbytes): 259696 id:1918230846 Device/file Name: +crs

The ORACLE tutorial is to analyze and solve common Oracle error codes. When using ORACLE, we often encounter ORACLE errors. For Beginners, these errors may be a bit vague and may not know how to handle these errors at the moment, I will analyze

Connect to the application Each application needs to identify the database server to which it connects to for data retrieval. You can use a connection string to connect an application to a database server. The typical connection string is as follows:

Users who have used Windows have such experiences. Once a large program is run, the computer speed will become very slow, and even the blue screen will crash, the main reason is that some software design did not consider releasing the corresponding

In ASMCA, the available space is-0.04 GB. At this time shutdownabort, and then start, only to the mount state, as long as a open, will ORA-03113: end-of-f In ASMCA, the available space is-0.04 GB. In this time shutdown abort, and then start, only

Sorry, I'm sorry. This article has been skipped for seven months... The Ubuntu blueprint also ranges from 8.04 to 8.04.1 to 8.10 and 8.04.2... Today, I finally made up my mind to write this article. I have written several articles on Ubuntu that

Oracle Database AdministratorI have already introduced daily, weekly, and monthly jobs for you, this section describes the monthly responsibilities and daily management of Oracle Database administrators, the weekly responsibilities of Oracle

Analysis and Solution of common Oracle error codes Analysis and Solution of common Oracle error codes The ORACLE tutorial is to analyze and solve common Oracle error codes. When using ORACLE, we often encounter ORACLE errors. For Beginners, these

Condition for Oracle to automatically manage the free space of blocks: When a row for an insert or update operation has enough free space in a data block, and the idle space fragment status cannot be full Condition for Oracle to automatically manage

For a person who first came into contact with IBM servers, it may be a bit difficult. The previous week, because a hard disk on the IBM server was broken, I found that the problem of converting 5300-to was reported for the X Series servers, you need