Example 1, get MySQL version
The code is as follows:
#-*-Coding:utf-8-*-#安装MYSQL DB for PythonImport MySQLdb as MDBcon = NoneTry#连接mysql的方法: Connect (' IP ', ' user ', ' password ', ' dbname ')con = mdb.connect (' localhost ', ' root ',' Root ', ' test ');#所有的查询, all running on the cursor of a module connected to concur = con.cursor ()#执行一个查询Cur.execute ("Select VERSION ()")#取得上个查询的结果, is a single resultdata = Cur.fetchone ()Print "Database version:%
):
? 72005
Which wocould be the more optimzed way to store a boolean, TINYINT (1) or ENUM ('true', 'false ')? It seems that when storing an enum w/two settings shocould only take up one bit, 0 or 1, but wocould spend more time looking up the enums in the beginning of the query. tinyint (1) however wocould take up 4 bits assuming it ranged 0-9. so it seems if you just wanted to fetch the value, tinyint (1) wocould be faster, but if you are searching through lots of records enum ('true', 'false '
this case, some hosts would be randomly unable to connect, because they is mapped to a port for which the TIME_WAIT bucket Of the server has a newer timestamp. That's why, the docs tell, "NAT devices or load balancers may start drop frames because of the setting".Some people recommend to leave tcp_tw_recycle alone, but enable and tcp_tw_reuse lower tcp_timewait_len . I Concur:-)Source: Dropping of connections with tcp_tw_recycle----------------------
Installing the MySQL module on the Windows platform for Python developmentWhen using Python to connect to MySQL, you need to use the installation version, the source code version is prone to error prompts. The bottom is packaged in 32 and 64 versions.Mysql-python-1.2.3.win32-py2.7.exeMysql-python-1.2.3.win-amd64-py2.7.exeFree: http://yunpan.cn/cVnTc9iRsQR4m access password 06FCThe installation process is simple enough to say:Example 1, Get MYSQL version#-*-Coding:utf-8-*-#安装 MYSQL DB for PythonI
The current grunt installation has some changes, GRUNT-CLI global installation, while Grunt is installed in this project.
$ NPM Install Grunt-contrib-watch–save-dev
$NPM Install Grunt-nodemon–save-dev
$NPM Install Grunt
Plus –save-dev lets you add locally added plug-ins to your project's dependencies automatically.
After installation, configure the Gruntfile.js file. Make changes according to your own catalog.
Module.exports = function (grunt) {grunt.initconfig ({watch: {jade: {files: [' views/*
Example 1, get MySQL versionInstalling the MySQL module in a Windows environment for Python developmentMysql-python windows under EXE installation file downloadCopy CodeThe code is as follows:#-*-Coding:utf-8-*-#安装MYSQL DB for PythonImport MySQLdb as MDBcon = NoneTry#连接mysql的方法: Connect (' IP ', ' user ', ' password ', ' dbname ')con = mdb.connect (' localhost ', ' root ',' Root ', ' test ');#所有的查询, all running on the cursor of a module connected to concur
Tags: des style blog http ar io os using SPExample 1, get MySQL versionInstalling the MySQL module in a Windows environment for Python developmentMysql-python windows under EXE installation file downloadThe code is as follows:#-*-Coding:utf-8-*-#安装MYSQL DB for PythonImport MySQLdb as MDBcon = NoneTry#连接mysql的方法: Connect (' IP ', ' user ', ' password ', ' dbname ')con = mdb.connect (' localhost ', ' root ', ' root ', ' test ');#所有的查询, all running on the cursor of a module connected to
difficulty of operational compliance in a large-scale deployment environment (compared to existing databases). Clustrix's challenges and competitors include Memsql, NuoDB, and Voltdb, both of which have their own differentiated advantages, while also relying on the advantages that can be quickly built to successfully attract large numbers of customers. Official website:http://www.clustrix.com/ Couchbase tightly following the footsteps of mobile apps DBMS Type: Nosql Description: docume
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