MySQL database is the most used database system on Linux operating system, it can be easily integrated with other servers, such as Apache, VSFTPD, Postfix and so on. The following describes the installation method for the Rhel 6 platform MySQL
Mysql|unix can get several versions of the MySQL distribution. The current stable distribution has 3.22 version series. The version currently being developed is 3.23 series. Generally, you should use the highest numbered version in the series.
MySQL
Oracle
Result Sets from Stored procedures in Oracle
A Frequently asked question is:
I ' d like to know whether ORACLE supports procedures (functions) which
Returns result sets.
The answer is most definitely yes. In short, it ' ll look like this:
5.2 Select APIThis section describes the ability to compare the C, DBI, and PHP APIs based on the methods of selecting a P I for various types of applications, giving them relative advantages and disadvantages, and indicating when to choose.First of
5.1MySQL of available APIsTo facilitate the development of applications, MySQL provides a client library in the C programming language that allows access to the MySQL database from within any C program. The client library implements the application
MySQL This appendix describes how to obtain and install the software required to run MySQL and the third party software described in this book, such as Perl DBI and CGI.PM support environments, PHP, Apache, and so on. This appendix also explains how
Introduction: https://baike.baidu.com/item/SQLite/375020SQLite Tutorial: http://www.runoob.com/sqlite/sqlite-tutorial.htmlUseful Resources for SQLiteThis tutorial lists the SQLite database sites and books.Why use SQLite?
There is no need
Storage Engine Introduction
MySQL Storage engine
MyISAM read and write faster, does not support things where the MyISAM storage engine is a piece of MySQL data before the system. Default storage engine prior to version
OverviewMysqlsla is a very good MySQL slow query log analysis tool, and easy to use. Mysqlsla is a script written in Perl that requires support for PERL-DBI and per-dbd-mysql two modules.Installation Environment
CentOS 7.1
Percona 5.7
2.
For an introduction to Xtrabackup (or Innobackupex), refer to the official documentation for detailsXtrabackup Installation Guide
File preparation
[[email protected] ~]# cd percona-xtrabackup/[[email protected] percona-xtrabackup]#
First, IntroductionMysqlsla is a tool for analyzing the MySQL slow log , which analyzes the reasons for slow queries, including the number of times a SQL is executed and the percentage of slow log data, execution time, waiting time, and so on. The
Two kinds: MyISAM: ???????????? MyISAM is the default storage engine. Each myisam is stored as three files on disk, and each file name starts with the name of the table, and the extension indicates the file type.??????????? . frm file storage table
Installing MysqlslaSource Path: https://github.com/daniel-nichter/hackmysql.comSource Storage Path:/USR/LOCAL/SRC1. Get the source codeIf you don't have a git command, install git first/usr/local/srcgit clone
1. What is SQLite? Introduction to SQLiteSQLite is an in-process library that is a lightweight, self-contained, server-free, non-configurable, transactional SQL database engine. Like his other databases, SQLite engine is not a standalone process
1. What is SQLite? Introduction to SQLiteSQLite is an in-process library that is a lightweight, self-contained, server-free, non-configurable, transactional SQL database engine. Like his other databases, SQLite engine is not a standalone process
This chapter describes how to use the Perl DBI with the MySQL interface. We do not discuss the rationale or architecture of DBI. For information on these aspects of DBI (especially the comparison with the C and PHP APIs), see Chapter 5th.
Examples
What is SQLite? Introduction to SQLiteSQLite is an in-process library that is a lightweight, self-contained, server-free, non-configurable, transactional SQL database engine. Like his other databases, SQLite engine is not a standalone process that
Compiling DBDPerl is often used in projects, but Perl needs to rely on the DBI,DBD driver when connecting to the database, but it relies on the Lib library of the database when installing DBD drivers by default.For example, Perl is connected to
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