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Last Thursday, a set of redo logs were added. After the alter system switch logfile was run, the database suddenly went down. Check the log and find the following error: Errors in file F: "lczhis" dump "bdump" lczhis_arc0_2468.trc: ORA-19504: failed

The queue module is divided into effects in jquery. searching the entire library will find that queue is only used in effects. js of the special effect module. Jquery extracts an independent namespace to the queue, indicating that, in addition to

Case of ORA-00020: No more process state objects available fault Today, a user consulted about database downtime. At that time, the database showed symptoms that users could not log on. To learn the cause, he checked the warning Log alert of the

A similar warning was found while looking at a client's database recovery log (File #N is offline, but was part of a online tablespace.), not previously noticed, this time by experimenting to reproduce the contentCreate a table spacesql> Create

I. Limitations of logistic regressionIn the logistic regression section, using the multi-classification of logistic regression, we realized the numbers on the image that recognize 20*20.But the use of a first-order model, and did not use the

teach you how to clear SQL log 1. Open Query Analyzer and enter the command dump TRANSACTION database name with NO_LOG2. Then open Enterprise Manager--right--the database you want to compress--all tasks--shrink the database--Shrink the file--Select

The Wunda "Deep learning engineer" Special course includes the following five courses: 1, neural network and deep learning;2, improve the deep neural network: Super parameter debugging, regularization and optimization;3. Structured machine learning

Experience Summary:The online log is divided into the current online log and non-current online logs, the damage of non-current online logs is relatively simple, generally through the clear command to solve the problem.Corruption of non-current

Git knowledge points at a glance 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M00/4A/4D/wKiom1QkJLryc8cQABgd2dZu-Pk563.jpg "Title =" 11.png" alt = "wKiom1QkJLryc8cQABgd2dZu-Pk563.jpg"/> Git is mainly divided into three areas: the

First, plan the directories where ORACLE_SID and DB_NAME are stored in data files, REDO logs, and control files. For example, in my experiment: ORACLE_SIDbys3, DB_NAME is bys3, and data files, REDO logs, and control files are all stored in

Today is, in the database recovery when a long-time violation of the ora-600 [2662] error, the special sorting is as follows: Problem description: The system tablespace is deleted by mistake. The database is restored to the starting state by

First create a directory SQL> showUser USERIs"SYS" SQL>Create Or ReplaceDirectory bdumpAs '/U01/app/Oracle/admin/orcl/bdump'; The directory has been created. Create an External table SQL>Create TableAlert_log (text varchar2 (400 )) 2

Non-current online Log File fault recovery 1. ORA-00313 error when starting the database. ORA-00313: openfailedformembersofloggroup Non-current online Log File fault recovery 1. ORA-00313 error when starting the database. ORA-00313: open failed for

Naive BayesianReference [1]The probability that events A and b occur at the same time occurs when a occurs in the case of B or occurs in the case of a BP (A∩B) =p (A)? P (b| A) =p (B)? P (a| BSo there are:P (a| B) =p (b| A)? P (A) p (B)For the given

This article briefly introduces information about JavaScriptMath and Number objects. For more information, see 1. Math object 1.1 Introduction A Math object is a mathematical object that provides mathematical calculations for data, such as getting

This article briefly introduces information about JavaScriptMath and Number objects. For more information, see 1. Math object 1.1 Introduction A Math object is a mathematical object that provides mathematical calculations for data, such as getting

I used to take a written test. One of the questions in the test was to calculate the number of times that 1 appeared within 40 billion. At that time, I only gave the idea. The specific implementation was not written. Now I will list the specific

This article mainly introduces the EventLoop of the JavaScript running mechanism. This article explains EventLoop from multiple aspects. For more information, see 1. Why is JavaScript a single thread? One of the major features of JavaScript is the

I used to take a written test. One of the questions in the test was to calculate the number of times that 1 appeared within 40 billion. At that time, I only gave the idea. The specific implementation was not written. Now I will list the specific

Example of ORA-19527 and ORA-00312 error resolution in 10gDG In the past few days, we have set up a 10g DG Windows 2008 R2 testing environment, mainly to re-build a production database DG for a customer tomorrow. Some problems have been found, so I