how to operate nook

Recently, thrift and php are needed in the project to read and write related data in HBase, So we sorted out the related classes and tested them. Currently, you can use the following methods to operate HBase: 1. HBase Shell is mainly used to execute shell after configuration to view HBase data, such as count 'xxxx' and scan 'xxxx. 2. Through Native Java Api, You encapsulate a RESTfull Api and operate HBase

In a variety of database environments, you may often encounter data conversion and mutual operations between different databases. The following describes how to use SQL Server to operate MySQL. 1 preparation before operation 1.1 install the MySQL driver To operate MySQL on SQL Server, first install the MySQL driver on the server where SQL server is located. MySQL driver installation package can be download

is to operate app. config and write configuration data named "add" under the root node (configuration. Note that vs2005 writes information to * .vshost.exe. config in IDE mode, andProgramThis file is overwritten when it is disabled, so you may not be able to see the configuration data you have written. You only need to execute * in resource management *. in *. EXE. the result is displayed in the config file. To

Osql is a Microsoft Windows 32 command prompt tool that can be used to run Transact-SQL statements and script files. The osql tool uses the ODBC database application programming interface (API) to communicate with the server. This article describes how to use the cmd command line window in windows to operate Sqlserver. First, we can run osql? /, So that all the commands that can operate sqlserver through t

You should be very clear about the javascript method for operating iframe parent page elements, the following describes how to use jquery to find and operate iframe parent page elements. Example: The following is the iframe.html Page code: In addition, because iframe cannot be cross-origin, if you open the above files directly, Some browsers may not work. In this case, you can upload the above two files to a local or remote server to see the effect.

Sometimes perl is required to operate mysql databases, which can be implemented through DBI. For more information, see Sometimes perl is required to operate mysql databases, which can be implemented through DBI. For more information, see DBI installation: For more information about DBI, see: 1. Download the DBI package:Wget http://search.cpan.org/CPAN/authors/id/T/TI/TIMB/DBI-1.620.tar.gz 2. Decompress Ta

Android Development (37) android uses android_serialport_api to operate the serial port to solve the permission problem. androidserialport Recently, we have a project where we want to use the android device to operate the serial port zebra GK888T printer and print the QR code using the printer. Hardware Device connection method: Android devices connect to the serial port of the zebra printer through serial

C # use the third-party component Epplus to Operate Excel tables,1. What is Epplus Epplus is an Open source component that uses Open Office XML file format and can read and write Excel2007/2010 files. You do not need to install office on your computer when exporting Excel files. Among them, the Open Office XML document formats include our common xlsx, docx, pptx, etc. In other words, the common files in these formats are based on bundled XML files, th

C # how to operate SQLite Databases, Some people may have used SQLite in java Development before, but they are somewhat impressed with it. When developing small applications using Winform or Wpf, we found that using SQLite database is also good. Just like a member management software, after development, you can save the complicated SQL server operations. During software installation, no additional database environment is required, which is simple and

Tutorial on using SQLAlchemy to operate databases in Python Django framework, djangosqlalchemy What is zero and SQLAlchemy?SQLAlchemy's official website contains the following text: SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that givesApplication developers the full power and flexibility of SQL.SQLAlchemy is a very powerful ORM and database tool, but its huge documentation and complex functions are always daunting to many people

Using JS to operate on iframe Parent and Child (internal and external) pages This article mainly introduces how to use JS to operate on iframe Parent and Child (internal and external) pages, and shares it for your reference. Let's take a look at the details below: 1. Get the content in iframe Before getting started, let's first look at how to get the content in iframe. The main two APIs for getting the cont

Several Methods for jquery to operate iframe This article provides a detailed summary of several methods for using jquery to operate iframe. For more information, see. Iframe is often used in composite documents. Using jquery to operate iframe can greatly improve efficiency. Here we collect some basic operations DOM method: Parent window operation IFRAME: windo

target: There are two machines, A and B, and I want to operate the script on machine A on B.Workaround: Use Paramiko to operate the remote machine1. Installing ParamikoInstall the third-party package "PIP3 install Paramiko"If the PIP accesses the foreign site total timeout, you can use the domestic mirror, using the-I designation,--trusted-host pypi.douban.com Trust the Mirror sourcepip3 Install paramiko-i

1. Use the MySQL extension Library of PHP to operate the MySQL database:PHP has 3 ways to operate MySQL database(1) MySQL extension library(2) mysqli extension Library(3) PDOMySQL extension library is different from MySQL database? PHP Designers encapsulate a number of ways to operate the MySQL database, and these methods are centralized to form the MySQL extensi

Example: using JavaScript to operate strings (some string functions) to operate string values is common for developers. There are many methods to operate on a string, such as extracting part of the content from a string or determining whether a string contains a specific character. The following JavaScript Functions provide developers with all the functions they

Familiar with the simple use of command lines to operate mysql database Note: Only one user is allowed in phpmyadmin, and rootlocalhost introduces simple commands to connect to database 1. you can directly open the command line, WINR, And Enter cmd in the command line and enter: 1mysql-hlocalhost-uroot-p password or (this can be protected) Familiar with the simple use of command lines to operate mysql datab

This article provides a detailed summary of several methods for using jquery to operate iframe. For more information, see iframe, using jquery to operate iframe can greatly improve efficiency. Here we collect some basic operations DOM method:Parent window operation IFRAME: window. frames ["iframeSon" mirror.doc umentIFRAME operation parent window: paipaiparent.doc ument Jquery method:In the parent window,

When posting a post, a website usually needs to operate on multiple data tables. For example, to post a post, you need to insert the post table, and then insert the post tag post_tag relational table, insert the post_user post follow table, update the number of posts in the tag table, and update the number of posts in the user table... when posting a post, a website usually needs to operate on multiple data

This article mainly introduces some basic methods for using Python to operate MySQL. Python + MySQL is also an excellent combination solution for rapid development on the server side. For more information, see Prelude To be able to operate the database, we need to have a database first, so we need to install Mysql first, and then create a test database python_test for future testing. CREATE DATABASE `pyth

This article provides a detailed summary of several methods for using jquery to operate iframe. For more information, see iframe, using jquery to operate iframe can greatly improve efficiency. Here we collect some basic operations DOM method:Parent window operation IFRAME: window. frames ["iframeSon" mirror.doc umentIFRAME operation parent window: paipaiparent.doc ument Jquery method:In the parent window,