(1) Basic introduction to hive
Hive is a data warehouse tool based on Hadoop, which can map structured data files to a database table and provide SQL-like query functions
Other knowledg
Category: Opensource
Open-source software (open-source) is a new term that is defined as software whose source code can be used by the public, and the use, modification, and distribution of this software are not restricted by licenses. Open source software is usually copyrighted, and its license may contain such restrictions: deliberate protection of its open source status, notice of authorship, or development control. “Open source” is being registered as a certification mark by public interest software organizations, which is also a means of creating a formal definition of open source.
Build a nuXT project (with Element UI, AXIOS)
Using Nuxt Nuxt.js document: https://zh.nuxtjs.org/guide/
npx create-nuxt-app
// or yarn create nuxt-app Run h3> npm run dev Routing Basic routing Nuxt.js is based on pages The directory
Hive Basics 1
hadoop hive (emphasis) day-6
1) Hive metadata (similar to tables, column lengths, etc.) storage On mysql
1)create table table_name like old_table //only table
2)create table table
Jetty Runner
Jetty Runner introduction:
For a fast and easy way to run your webapp, without having to install and administer a Jetty distro, use the Jetty Runner.
Download link: http://central.maven
How to use Spring data with couchbase without the _class property
Is there an easy way to use spring data couchbase with documents without the _class attribute?
In the sofa base, there is something like this in my sampling database:
{
“username”: “alice”,
HBase (3) – Build full-distributed
HBase set up–Fully-distributed 1, instructions for building methods By default, HBase runs in standalone mode. Both standalone mode and pseudo-distributed mode are provided for the purposes of sm
Hibernate – Spring-Data JPA repository is sorted by losing null values in the results
I am using spring-data and jpa repository to query. I have a question, I have an entity with ManyToOne field, if I sort by this field in the query, then in My list will not return any value with th
IE6 CSS question on the link
From my investigation, it seems that IE6 considers the following links to be the same:
link1: http://www.google.com#/ test=1
link2: http://www.google.com#/test=2
The reason is that I as
Even if the PHP file in the browser chrome is normal, the JSON object is empty when Android is logged in.
Follow my course
public class fetchUserDataAsyncTask extends AsyncTask {
User user;
GetUserCallback userCallBack;
public fetchUserDataAsyncTask(User user, GetUserCallback userCallBack) {
Selenium – Set the location and height width of the browser
Foreplay When web automation, if you only have one display, if you start Google Chrome and occupy the entire display, then you must be unable to do other things NS. Of course, you can also use the