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When starting the test database in the morning, the following problems were found: the database version is 11.2.0.3SQLgt; startupOracleinstancestarted. TotalSystemGlobalAr When starting the test database in the morning, the following problems were

The oracle Database Log File version is inconsistent. When the test database is started in the morning, the following problems are found: the database version is 11.2.0.3SQL> startupORACLE instance started. total System Global Area 1653518336

When starting the database: SYS@orcl11gstartupORACLEinstancestarted.TotalSystemGlobalArea417546240bytesFixedSize2213936bytesVariableSize327157712bytesDatabaseBuffers83886080bytesRedoBuffers4288512bytesDatabasemounted.ORA-03113: end-o When starting

Linux O & M learning notes-MySQL Log learning and learning notes-mysql I. Error Log: Error Log 1. Introduction An error log is an error message that records the MySQL service process mysqld during startup, shutdown, or running. The error log

Detailed explanation of System Change number (SCN) and change number scnDetailed description of oracle026 System Change number (SCN) the SCN System Change number is to generate a certain number of time through some functions; ensure the consistency

The redo path is incorrect today, and the standby uard database cannot be open: ORA-01275: The add logfile operation is not allowed when backup file management is automatically performed Let's take a look at the following: Let's take a look at the

No backup software backs up online redo log files. Because it is almost always written, it makes no sense to back up a single time point. In a sense, archiving logs are also a backup of redo logs on the couplet. The core of redo log file protection

Prompt>Git initInitialized empty git repository in/path/to/repo/. Git/Prompt>... Create file (s) for first commit...Prompt>Git addPrompt>Git commit-m'initial import'Created initial commit bdebe5c: initial import. 1 files changed, 1 insertions (+), 0

Introduction to the python logging Module Use python to write programs, and sometimes use the log system. Especially for dynamic languages like python, many errors can only be found during running. A good log system is very important to Python

[Reprint] the original address http://blog.sina.com.cn/s/blog_681315fa0100imtk.html If you use python to write a relatively large program, you will certainly use the log system. Especially for dynamic languages like python, many errors can only be

Redo log files Record Database Change Data. Generally, the failure of redo log files will not cause database data loss, but will affect database recovery. Redo logs can be divided into two statuses: Current online redo logs and non-current online

This is a creation in Article, where the information may have evolved or changed. The syntax for finding and displaying specific key-value pairs in a MongoDB shell is: > Db.logs.Find({},{"Log":1}){

This is a creation in Article, where the information may have evolved or changed. The syntax for finding and displaying specific key-value pairs in a MongoDB shell is: > Db.logs.Find({},{"Log":1}){

oracle026 System Change Number (SCN) of the detailed SCN system change number, is through some functions to generate a certain number of time, to ensure consistency of data files, compared successively, new and old;Why use time to generate numbers,

Detailed description of the logging module and logging   Many programs need to record logs every day. In addition, the information contained in the logs contains normal program access logs, and may also have errors, warnings, and other information

In addition to Console. log (), more Javascript Debugging commands are provided, The Console object provides access to the browser Console (for example, the Firefox Web Console ). Different browsers work in different ways, but here we will introduce

TF-IDF and its algorithmConceptTF-IDF (term frequency–inverse document frequency) is a commonly used weighted technique for information retrieval and information mining. TF-IDF is a statistical method used to evaluate the importance of a word to one

TF-IDF and its algorithm Concept TF-IDF (term frequency–inverse document frequency) is a commonly used weighted technique for information retrieval and information mining. TF-IDF is a statistical method used to evaluate the importance of a word to

MySQL Log Management Because the Rizhi file is an important reference for mastering database operation. Therefore, the maintenance of log files is also very important. mysql Log type: error log, normal query log, binary log, slow query log 1. Error

The Redo log (redo log) is controlled by the LGWR. Oracle does not immediately modify the data block for DML operation data, but produces redo records and logs it to the online redo log, when redo log is full, or the global checkpoint is started, or