innodb tables

The simplest way to understand how an index works in MySQL is to look at the "index" section of a book (the directory). The specified page number is then found by index.In MySQL, the storage engine uses the index in a similar way, first finding the

Ps:innodb This engine is very different from the MyISAM engine. In particular, its data storage format. For the data structure of INNODB, there are two conceptual issues to be solved first: shared tablespace and exclusive table space.1. What is a

Periodic analysis TableANALYZE [LOCAL | No_write_to_binlog] TABLE tbl_name [, Tbl_name]This statement is used to analyze and store the keyword distribution of a table. During parsing, the table is locked with a read lock. This is useful for MyISAM,

My favorite question during interview for people to work as MySQL DBAs or is involved with MySQL performance in some I s to ask them what should is tuned in MySQL Server straight after installation, assuming it is installed with default set Tings.

The following error message was encountered today in the data Guide to the newly built test environment:ERROR 1071 (42000): Specified key was too long; Max key length is 767 bytesShould be the length of the key exceeds the threshold, first of all

Delete syntaxSingle table Syntax: delete [low_priority] [quick] [ignore] from tbl_name [where where_definition] [order by ...] [Limit Row_count] multiple table syntax: delete [low_priority] [quick] [ignore] tbl_name[.*] [, tbl_name[.*] ...] From

MyISAM: This is the default type, which is based on the traditional ISAM type, and ISAM is the abbreviation for indexed sequential access method (indexed sequential access methods), which is the standard way to store records and files. Compared to

MyISAM is the default storage engine in MySQL, and it's not usually a lot of people who care about this stuff. Deciding what kind of storage engine to use is a very tricky thing to do, but it's worth studying, and the article here only considers the

Descending indexing and loose index scan Descending indexing and mitigating index scans Comments to I previous posts, especially this one by Gokhan inspired me to write a bit about descending indexes and about Loose index Scan, or what Gokhan

Resolve can ' t connect to MySQL server on ' localhost ' (10048)You are using the Windows operating system, and this error is related to a registry key value of TcpTimedWaitDelay.Reducing tcptimedwaitdelay time in Windows resolves such problems,

http://www.xiaoxiaozi.com/2009/07/12/1158/, a relational database management system like MySQL, is based on the ability to create relationships between tables in a database. By easily establishing a record-to-record connection in different tables,

MySQL physical Backup tool xtrabackup installation configuration 1????XtrabackupTools IntroductionXtrabackup is a InnoDB to do physical data backup tools, Support Online hot backup (backup without affecting the data read and write), is a commercial

I. Periodic checklists and Analysis tablesThe syntax for the parse table is as follows:ANALYZE [LOCAL | No_write_to_binlog] TABLE tbl_name [, Tbl_name] ...This statement is used to analyze and store the keyword distribution of the table, and the

For the hot standby of MySQL database, Xtrabackup is the perfect addition to MySQL enterprise backup. The tool provides hot spares based on the InnoDB storage engine, supports full-volume, incremental, partial, point-in-time recovery, and redo slave

Download InstallationYum-y Install CMake glib2 pcre pcre-devel mysql-develwget https://launchpad.net/mydumper/0.6/0.6.2/+download/mydumper-0.6.2.tar.gzTar XF mydumper-0.6.2.tar.gzCD mydumper-0.6.2CMake.Make && make installNote: If only help can be

mysql-As with Nginx and other features of multi-instance, it is simple to open a server on a number of different service ports (3306,3307) simultaneously run multiple MySQL service processes, these service processes through different sockets

when doing DB benchmarking, Qps,tps is a key metric for measuring database performance. This paper compares two kinds of calculation methods on the Internet. Let's take a look at the relevant concepts. Concept Introduction:qps:queries per Second

Mysql Doc Read notesSelf-turning GitHubSpeed of SELECT statements Rational use of indexes Isolate expensive parts of a debug query, such as whether a function call is executed in a row in the result set or a row in a full table

MySQL templates, which are used online in this address http://mysql-cacti-templates.googlecode.com has not been accessedGoogle found this URL:Introduction Cheat:

Export SQL fileReasonable use of several parameters during export can greatly speed up the import. -e uses multi-line insert syntax that includes several values lists;–max_allowed_packet=xxx the maximum size of the buffer between client/server