what is log in rescue

What is RBA? This is general question among our junior Oracle DBA. the RBA means redo block address. it's just my mind. you must identify it from rdba (relative data block address ). so they are very Simlar. but they are two different thing. the RBA is related the redo log f

The Internet bandwidth problem is already the main bottleneck affecting Internet development, in many webmasters, many webmasters asked this question: "What is the difference between dual-line Single IP address and dual-line Dual IP address? What is the difference between si

use the same Lmdb storage at the same time as a means of scaling performance. In addition, Lmdb does not require a transaction log (thereby improving write performance by not requiring two write data) because it maintains data integrity through the design itself.Lmdb uses B + Tree data structures internally. Its design efficiency and footprint are small, with unexpected side effects that provide good write performance. The Lmdb has an API similar to

to Jndi--not the object looking for dependencies from the container, but the container actively passing the dependency to it when the object is initialized without waiting for the object to be requested.Face Tangent--spring provides rich support for aspect-oriented programming, allowing for the development of cohesion through the separation of application business logic with system-level services such as auditing (auditing) and transaction (transacti

1. What is cross site scripting? Cross Site Scripting (or XSS) is one of the most common application-layer Web attacks. XSS commonly targets scripts embedded in a page which are executed on the client-side (in the user's web browser) rather than on the server-side. XSS in itself is a threat which

In this article we will look at what is python Distributed Process。 Learn about the Python distributed process and what the distributed process can do in Python programming. In thread and process, the process should be preferred because the process is more stable, and the process can be distributed across multiple mac

What is AOP? Aspect-oriented programming (AOP), which is similar to OOP object oriented programming. AOP is a continuation of OOP and short for aspect oriented programming, which means Aspect-Oriented Programming. What is the aspe

that do not meet the requirements.The name of the bad file is given by the Badfile parameter of the Sql*loader command.1.5 log file and log informationWhen Sql*loader starts executing, it automatically establishes the log file. The log file contains a summary of the load, e

What file is Xlog? It is a voice call log file or a cell phone recording file, generally in the mobile phone micro-letter folder can be found, the file similar to QQ chat record files, users can not directly open, even in the computer can not be through Notepad, player and other tools opened, but generally are garble

Source: Ruan Yi Feng Www.ruanyifeng.com/blog/2017/12/blockchain-tutorial.html This article has been entered in the July online AI question Bank, as the first AI bank, July online bank contains the vast majority of machine learning and in-depth study of the written interview questions, knowledge points, can be used as machine learning test questions, can also be as a check leakage fill the database. July Online website and July online app portal See "read the original." The Block chain (blockchai

, without the administrator, everyone can write to the inside data, how to ensure that the data is trustworthy. How to be changed by the bad guys. Read on, this is where the chain of blocks is wonderful. third, block Block chain consists of blocks (block). Chunks are like database records, and each time you write data, you create a chunk. Each block contains two

/sdc is entire device, not just one partition!What should I do? (Y, n) yFile System tag =Operating System: LinuxBlock size = 4096 (log = 2)Part size = 4096 (log = 2)Stride = 0 blocks, Stripe width = 0 blocks1310720 inodes, 5242880 blocks262144 blocks (5.00%) reserved for the super userFirst data block = 0Maximum filesy

, 2002, Oracle Corporation. All rights reserved.sql> Conn user/[email protected] as sysdba//user and password are your needs bark username and password, such as sys/ 123456 error:ora-12500:tns: Listener cannot start private server processSql>exit;Cause: The local database corresponding service is not open, in the service to the Oracleu corresponding service opened(4) connect to the databasee:\>sqlplus/nologSql*plus:release 9.2.0.1.0-production on

　　Brief introduction The System Volume Information folder is a hidden system folder that the systems Restore tool uses to store its information and restore points. There is a System Volume information folder on each partition of your computer. "System Volume Information" folder, the Chinese name can be translated into the "Systems volume label information." The backup information for System Restore

what is the telnet exit command? Use Telnet to log on to a certain IP port, with a space interval between the port and the IP, instead of: interval, as shown in the following figure. After the successful login, the following figure, if the port is not opened directly reported refused, the successful lo

. Up to now, I don't know the reason for this behavior. The android friends @ and Lin Yue said that some manufacturers may modify webview because of this. I suddenly felt that I was a little confused. There are many customized platforms, such as cloud, www. gaohuodong. me, maka, initial Page ...... See if their cases will help you ~ H5 is more capable of self-marketing, with the virus spreading function, with a sense of introduction, more emphasis on

This is the ninth part of agile development performance management. (Total column directory) If you are confused about the long-term lack of job title improvement, the following content may be helpful. The higher the job, the less like a migrant worker, but like an enterprise operator.What is business For a development team, the following four main content needs to be operated: product, team, technology, an