Database Administrator

[RMAN] Use RMAN Incremental backup to refresh Standby Database and rmanstandbyStep 1: Create the Incremental Backup RMAN> BACKUP DEVICE TYPE DISK INCREMENTAL FROM SCN 750983 DATABASE FORMAT '/tmp/incr_for_standby/bkup_%U';  Step 2: Make the

Configuration steps for mysql dual-machine hot standby and mysql dual-machine hot standby Set dual-machine Hot Standby: First, you must create a synchronization user on the two machines: Grant replication slave on *. * to 'repdcs '@ '192. 168.21.39'

Tablespace (bottom), tablespace ( 7. Table space size -- View the table space usageSelect a. tablespace_name,Round (a. bytes/1024/1024) "Sum MB ",Round (a. bytes-B. bytes)/1024/1024) "used MB ",Round (B. bytes/1024/1024) "free MB ",Round (a. bytes-B.

Hibernate Tool slf4j error, hibernateslf4j After the Hibernate Tool 3.4 plug-in is installed in eclipse, MySql console and model are generated, and slf4j errors are generated all the time, leading to the inability to continue. The solution is as

In Linux, there is no solution for my. cnf file, which is completely self-organized. Many tutorials are nonsense. linuxmy. cnf I have read a lot about Linux without my. the cnf blog is about rmp installation without my. what are the two methods of

OR leads to Cartesian product, or Cartesian Recently, I monitored the database and found that the following statement ran very slowly. The original execution plan went through, resulting in Cartesian Product. Let's look at the following

Rman (lower), rman (Backup Control File Method 1: automatic backup using the RMAN Control FileConfigure controlfile autobackup on;Configure controlfile autobackup off; Method 2: Use user-managed backupAlter database backup controlfile to

Rman (I), rman (CHANGE command to CHANGE the backup and copy status1. change backupset 100 unavailable The CATALOG command is used to add backup fragments and copies to the RMAN database.1. Add the data file copy information to the RMAN

Share the Oracle password retrieval method and the oracle password retrieval method I believe most people will encounter such problems. I have also encountered such problems.First, he will ask you to enter the User name: you only need to enter

The OracleOraDb11g_home1TNSListener service is stopped after it is started. Some services are stopped automatically when they are not used by other services or programs.The solution is as follows:1:

Bat writing in dmp format for automatic database backup in window, dmpbat Copy the following command to a txt text file, and modify the corresponding parameters as needed. After everything is completed, save the file in bat format. In this way, you

MySQL trigger: differentiation between after and before, mysqltriggerAfter: add, delete, modify, and then trigger the data. The triggered statement is later than the added, deleted, and modified statement, which cannot affect the previous add,

In linux, back up the MySQL database and delete the Backup Data seven days ago. #! /Bin/bash # backup database hz jshuabo sdhuaboname =$ (date + % Y % m % d) /alidata/server/mysql-5.1.73/bin/mysqldump-u root-p123456 hz>/root/sqlBackup/hz. $ name.

Analyze the performance and defects of the Self-written SQL Server synchronization tool.Analyze the performance and defects of the Self-written SQL Server synchronization Tool 1. C # synchronize SQL Server database Schema 2. C # synchronize data in

IT Ninja Turtles Instant client required, Ninja Turtles instant Pply OS:Windows, Mac, and Linux Apply Navicat Product:Navicat for Oracle, Navicat Premium Apply Navicat Version No .:All Instant Client package is required for Basic and TNS connection

MongoDB operation manual CRUD Delete remove, mongodbcrudDelete record overview in MongoDB, the db. collection. remove () method is used to delete records in the set. You can delete all records, delete all qualified records, or delete only one record.

Kettle javascript step error handling, kettlejavascript Javascript Step Error Handling   If you are familiar with the incorrect features of kettle conversion, you may want to know how to use it in javascript steps. The steps and user interfaces that

Basic mysql knowledge ReviewCreate a databaseCreat table test (# An integer usually uses an int.Test_id int,# Decimal is usually used for decimals.Test_price decimal,# Common text is usually used and Default is used to specify the Default

Spfile, spfile location 1. Enable ORACLE to automatically start from spfileSQL> create spfile = '/dev/vx/rdsk/vgora/lv_spfile' from pfile;SQL> shutdown immediate;Modify the initora11g. ora File/Oracle/app/product/11g/db/dbsCp initora11g. ora initora1

The location where SQL Server obtains the last character. CHARINDEX ('characters', reverse (field name )) This means to reverse the field, that is, to retrieve the last position of a character from the back to the front. Obtain the final position