innodb tables

Mydumper Introduction MySQL's mysqldump tool supports single-threaded operations. Multiple tables are exported one by one without a parallel machine, which makes it unable to quickly back up data.   Mydumper is a utility that supports multithreading.

Purpose of the backup　　Data loss scenarios such as disaster recovery, hardware failure, software failure, natural disaster, hacker attacks, misoperation testing, etc.Backup Note points　Can tolerate the maximum amount of data lostHow long does it

Backups are the last line of defense for data security, and for any scenario where data is lost, backups may not necessarily restore a single amount of data (depending on the backup cycle), but at least minimize the loss. There are two important

Connection Database case: Import Mysql.connector CNX = Mysql.connector.connect (user= ' Scott ', password= ' Tiger ', Host= ' 127.0.0.1 ', database= ' employees ') Cnx.close () Or From Mysql.connector Import

MyISAM is the default storage engine in MySQL. Generally, not many people care about this. It is a tricky thing to decide what storage engine to use, but let's take a look at it. Here we only consider MyISAM and InnoDB, because these two are the

Let us answer some of the following questions: Do you have a foreign key in your database? Do you need business support? Do you need full-text indexing? What kind of query mode do you often use? How big is your data? Thinking about these issues

Ⅰ, Xtrabackup Introduction Xtrabackup can only back up the data of InnoDB engine, can not back up the table structure, Percona Open source, strongly recommend the latest version (old version bug many) Innobackupex can back up data and

Backup Policy 1, type of backupType 1: Hot backup: Read/write not affected (MyISAM does not support warm-up, INNODB support) Warm backup: Can only perform read operations Cold backup: Offline backup, read and write operations are

Next let's answer some questions:◆ Does your database have a foreign key?◆ Do you need transaction support?◆ Do you need full-text indexing?◆ What query mode do you often use?◆ How big is your data?Thinking about the above questions can help you

The following articles mainly describe how to implement simple and practical MySQL database optimization methods, including how to regularly analyze and check tables and how to optimize tables on a regular basis, the following is a description of

Comparison between MyISAM and Innodb: bitsCN. comMyISAM and Innodb Http://www.oschina.net/question/17_4248 Considerations for MySQL storage engine InnoDB, MyISAM, and row Lock2010-02-21 18:21 MyISAM is the default storage engine in MySQL. generally,

Mysqlinnodbcount (*) slow solution bitsCN.com slow mysql innodb count (*) The innodb engine is different from myisam in terms of statistics. Myisam has a built-in counter. Therefore, when using select count (*) from table, you can directly retrieve

The advantages and disadvantages of InnoDB and MyISAM for MySQL storage engine analysis bitsCN.com are as follows: ◆ Does your database have a foreign key? ◆ Do you need transaction support? ◆ Do you need full-text indexing? ◆ What query mode do

Anyone who has developed a database-driven small web application using MySQL knows that creating, retrieving, updating, and deleting tables in a relational database is a simple process. In theory, as long as you have mastered the usage of the most

Xtrabackup is an open source backup tool developed by percona to implement Database Backup. it is different from ibbackup. Ibbackup is a paid backup tool. in terms of its backup performance, ibbackup is inferior to Xtrabackup. I use Xtrabackup to

In this article, we will learn how to use a basic abstract class in PHP 5 to update data in two InnoDB tables using foreign key constraints. The following example shows how to use the foreign key constraint in the script language on the server. I.

Innodb_adaptive_flushing= {ON | OFF}Set whether to allow the MySQL server to dynamically adjust the dirty pages in the InnoDB buffer pool based on the workload. The purpose of dynamically adjusting the write speed is to avoid IO activity spikes. The

PHP and MYSQL transaction processing and PHPMYSQL Transaction Processing /*There are two main methods to process MYSQL transactions.1. Use begin, rollback, and commit to implementStart a transactionRollback transaction rollbackCommit transaction

The innodb engine is different from myisam in terms of statistics. Myisam has a built-in counter. Therefore, when using select count (*) from table, you can directly retrieve data from the counter. Innodb must scan the entire table once to obtain

Next let's answer some questions: ◆ Does your database have a foreign key?◆ Do you need transaction support?◆ Do you need full-text indexing?◆ What query mode do you often use?◆ How big is your data? Thinking about the above questions can help you