archive winzip

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"Linux compression archive, tar"

Tags: option compression xzcat div file gunzip level view CompressI. Compression and archivingThe compression algorithm is equivalent substitutionGzip FILE1 FILE2 ... extension. gz -# (number): #代表压缩等级, 1-9, default 6 -D (compression): Extract -R: Recursive compression directory gunzip: decompressed command Zcat Viewable gzip Compressed files (no decompression required) bzip2-# (number): #代表压缩等级, 1-9, default 6 (better than gzip compression)-D (compression): Extract-K: after compressi

One of the solutions to Hadoop small files Hadoop archive

Introduction HDFs is not good at storing small files, because each file at least one block, each block of metadata will occupy memory in the Namenode node, if there are such a large number of small files, they will eat the Namenode node's large amount of memory. Hadoop archives can effectively handle these issues, he can archive multiple files into a file, archived into a file can also be transparent access to each file, and can be used as a mapreduce

How to modify an Oracle database as a non-archive mode

Action steps are as follows: Step 1 Log on to the server with an Oracle user and execute the following command into Sqlplus. Oracle@smgwrpt:~> sqlplus "/as sysdba" Step 2 View the current archive mode for the database. Sql> Archive Log List Database Log Mode Archive mode Automatic Archival Enabled Archive Destin

How Does oracle disable archive logging?

Check whether the oracle database is in archive Mode SQL> select name, log_mode from V $ database;NAME LOG_MODE------------------------------------------TEST NOARCHIVELOGSQL> archive log listDatabase log mode No Archive ModeAutomatic archival DisabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 80157Current log sequence 80163Edit the

OracleDataGuard backup database archive file deletion script

OracleDataGuard synchronizes data through archive files. The archive file of the master database can be deleted during RMAN backup, but the archive file of the slave Database Oracle Data Guard synchronizes Data through archive files. The archive file of the master database c

Set the Oracle database to non-Archive

In archive log mode, there may be an annoying ORA-00257 error when the size of the archive log exceeds the maximum, as we have discussed how to increase the archive log space. However In archive log mode, there may be an annoying ORA-00257 error when the size of the archive

Development of the student archive management system for Bachelor's degree in computer science

Bachelor degree in computer science DesignDevelopment of the student archive management system×××(2004July) Preface The computer has become a mantra hanging in the corner of our mouth. It has penetrated into all aspects of daily work and life, such as text processing, information management, aided design, graphic image processing, education and training, and game and entertainment. Windows The launch of the system has moved computers from an elega

How Does oracle disable archive logging?

Check whether the oracle database is in archive Mode SQL> select name, log_mode from V $ database; NAME LOG_MODE------------------------------------------TEST NOARCHIVELOG SQL> archive log listDatabase log mode No Archive ModeAutomatic archival DisabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 80157Current log sequence 80163 Edit t

RAC Knowledge Update-managing archive logs and modifying VIP under RAC (from wenpingshu)

Whether the database is single-node or cluster, the way it carries things is strictly in the order of timestamps. This determinesWhen restoring a database, you must read the log records in strict chronological order to restore database files. Therefore, when the cluster database is restored,A complete log sequence is required.When the database is running in archive mode, logs are "partially" managed on the instance, so the archiving operation is also

How to check Oracle's archive space is full

Most people will go to check whether the archived directory is full, and use the archive directory to determine if the archive space is full, but I don't think the method represents the actual situation, and what you see may be a superficial phenomenon. By default, when we build the library in DBCA, the archive is placed under $oracle_home/flash_recovery_area, a

Oracle archiving and non-archive Switching

First, you can use the following statement to view the existing database mode:Select name, log_mode from v $ database;You can also use the following statementArchive log list; (This method requires the as sysdba)SQL> archive log listDatabase log mode No Archive ModeAutomatic archival DisabledArchive destination/export/home/oracle/product/8.1.7/dbs/archOldest online log sequence 28613Current log sequence 286

Commands and parameters for Oracle archive Mode

Oracle databases can run in two modes: archivelog and noarchivelog ). Archiving can improve the recoverability of Oracle databases, Oracle databases can run in two modes: archivelog and noarchivelog ). Archiving can improve the recoverability of Oracle databases, Commands and parameters for Oracle archive Mode Oracle databases can run in two modes: archivelog and noarchivelog ). The archive mode can im

Xcode4 release test-Archive)

From: xcode4 release test-Package Xcode4 release test-archive. The official document is incorrect. Switch from "My OS" Sina Blog, IOS program Release Test 4-archive release (SHARE)The last step of the release test is archive. The xcode4 help document provides a detailed description, but it is incorrect. 1. Set "build Settings"It's an official document. Pay

ORACLE Archive Log Open shutdown method

Label:One set to archive mode [XHTML]View Plaincopyprint? 1 SQL> Archive log list; #查看是不是归档方式 2 SQL> alter system set log_archive_start=true scope=spfile; #启用主动归档 SQL> Alter system set log_archive_dest=' location=/oracle/ora9/oradata/arch ' scope=spfile; #设置归档路径 SQL> Alter system set log_archive_dest_1=' location=/oracle/ora9/oradata/arch1 ' scope=spfile; SQL> Alter system set log_

Oracle 11g Flashback Data Archive (flash back Data archiving)

Oracle 11g Flashback Data Archive (flash back Data archiving) UNDO tablespace record rollback information although it can provide flash back query, but for a long time, this information will be overwritten. In fact, as long as the transaction is committed, it will become a writable object. Therefore, when performing a transient query, we will receive the 1555 error because we cannot find the undo block, and Flashback Data

Switch the archive mode of the oarcle Database

In the development and testing environments of Oracle databases, the log mode and automatic archiving mode of databases are generally not set, which is conducive to the adjustment of system applications, the generation of a large number of archive log files will consume a lot of disk space. However, when the system goes online and becomes a production environment, it is very important to set it to log mode and automatically

Regularly archive Access database records

A common database task archives records from one table to another. If you want to delete unnecessary records from the original table to reduce the table size, but may refer to these records in the future, you can archive records (instead of deleting records ). To archive records in the MicrosoftAccess database, use a macro to run the query and extract records from a table A common database task archives rec

Oracle does not completely restore the lost archive log

Environment:OS: Red Hat Linux As 5DB: Oracle 10.2.0.4The following describes how to simulate Incomplete recovery after archiving logs are lost.1. Back up the databaseRun {Allocate channel c1 device type disk;Allocate channel c2 device type disk;Allocate channel c3 device type disk;Allocate channel c4 device type disk;Backup database format'/u02/rman_bak/full _ % u _ % T. bak ';Release channel c1;Release channel c2;Release channel c3;Release channel c4;}2. Incomplete recovery is performed to rese

How to deal with gap in Dataguard archive

Gap is created by the fact that the archive log between the repository and the main repository may be inconsistent due to network and other reasons between the Dataguard master and standby.Steps to resolve gap:1. Get gap details in the standby library2. Copy the required archive logs from the main library to the standby library3. The Standby library registers the archiv

Oracle non-archive mode Media Recovery error-ORA-26040

Oracle non-archive mode Media Recovery error-ORA-26040 System Environment: Operating System: Linux RH55 Oracle: Oracle 11gR2 Simulation case: 1. view the database mode 18:12:36 SYS @ prod> archive log list; Database log mode No Archive Mode Automatic archival Disabled Archive destination/dsk4/arch1 Oldest online log se

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