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How to use SSH (Shell) to back up and restore the MySQL database For example: The database parameters are:: MySQL Address: mysql.dh.net MySQL Name: mysql_dbname MySQL User: Mysql_dbuser MySQL Password: mysql_dbpass I'm going to backup the database

　　White Cat Plan How to get the white statue? Players as long as the game through the small new level can get the system presented white statue , the player can be found in the town building in the "warehouse" to find small white statue Click can

I've been in touch with Linux for years, at least for 5 years. Recently the company is engaged in internal training, everyone can enroll in training others. Think of yourself in the Linux immersion for many years, should come out a force. Always

The Daily tasks are: 1 complete backup or differential backup of the database on a regular basis. 2 regularly clean up the backup files, because the storage space is limited, you may need to save only a period of time files (such as a week or

Topic From the title look, finally a bit into the feeling, is not it. Next Zed is going to teach us the simplest way to use a function. New Knowledge A function is a piece of code that can be run repeatedly, using functions to improve the reuse of

How to intervene in the execution plan--Using hints hints The cost-based optimizer is smart, and in most cases it chooses the right optimizer to ease the burden on the DBA. But sometimes it is clever to be mistaken, choose a bad execution plan, make

Internet N years ago, Caoz wrote a number of "network success" of the rubbish article, some old friends may remember, yes, it is rubbish. At any time, caoz back to look at the things written before, there is a kind of unbearable 卒读 feeling, always

first, the index MongoDB provides a variety of index support, the index information is saved in System.indexes, and the default is always to create an index for _ID, its index uses the basic and MySQL and other relational database. In fact, it can

Because the B*tree index does not store null values, some Oracle queries do not use indexes when the indexed field is allowed to be empty. Most of the time, it appears that we can use a full index scan, which may give Oracle the chance to discard

1 The easiest way is to log in with the Pl/sql tool, select the SQL statement, and then press F5; 2 with Pl/sql tool login, open command Window A) execution: Explain plan for SELECT * dual;--red part can be replaced with your SQL statement b)

This article mainly describes several of the most common operation methods for updating the DB2 execution plan. Like the Oracle database, the DB2 database also uses an optimizer to analyze SQL statements, generate an Access Plan ). The DB2 optimizer

Use AWR to view the SQL Execution Plan. Find the problematic SQL statement in AWR and want to know the specific execution plan of the SQL statement, so I used the SQL id obtained in the AWR report to query several dynamic performance views such as V

A supervisor of IBM company said that the company may release a free version of DB2 database software next year. Teo, the brand manager responsible for information management at IBM Singapore, told the media: to enable developers to stay focused on

When a node is attached to a filter, the following example shows that a table is scanned once to filter the returned result set. However, it is interesting that when the condition is false When a node is attached to a filter, the following example

When we accidentally set the scheduled maintenance time for hosts and services in batches, how can we delete them in batches? The following is a script to easily handle the problem ~~~ #! /Bin/bash# Eg:#./Del_downtime.sh 877 885 hosts# Delete the

? This article was published in September 2009-10-2608: 39 Source: SCID 112200911: 45: 39AM according to foreign media reports, the European branch of the Free Software Foundation (FSFE) said on Friday, oracle should hand over the MySQL database to

Another thing discussed at the UDS (Ubuntu developer Summit) in Copenhagen on Monday is javastusdk. Javastusdk is a software development kit dedicated to Ubuntu. It brings together all the necessary software and application development tools to

The analysis system only has one scheduled task executed every minute. A task is the only command channel in the execution application program. It reads the activation task records of the database's scheduled task table, if the execution conditions

This is a creation in Article, where the information may have evolved or changed. Google recently unveiled a plan to implement go 1.5 bootstrap (Bootstrap). The author of the relevant documentation is Russ Cox, the Go core developer, who has been

Background: A table is suddenly slow to query. cost100 + seconds or longer, seriously affecting production. Oracle getting started Tutorial: leadingvsorderedhint Background: A table is suddenly slow to query. The cost is over 100 seconds, which