Reposted from https://www.cnblogs.com/puke/archive/2012/09/13/2683067.html
Have tried this method
This way you can get the elements of the parent page , But when calling the method of E
Author: Simo
Ten, HDFS NameNode work mechanism
[TOC]
txid:< br>namenode gives a unique id for each operation event (addition, deletion, modification operation), called txid, which is generally incremented from 0. For each additional opera
Hive Basics
hadoop hive 1) Hive was born in 2007,
2) 2014 hive 0.13.0 is very popular (it is relatively stable for the first time)
3) 2015hive1.2.0 (relatively only an upgrade)
4) 2016hive2.1
Hibernate – HQL on subclass properties
I have a class A and a class B and a class C. They have different attributes.
How do I do:
aaaa where(a.class = B and a .specific-property-of-b = “y”) or (a.class = C and a.specific-property-of-c
LINQ to NHIBERNATE – Did not implement method COS
In Linq to NHibernate, I am trying to return business users within a certain distance. This is what I have so far:
var query = from b in ActiveRecordLinq.AsQueryable()
where (3959 * Math.Aco
How to add ID before using NHibernate
It seems that NH only gets MAX(ID) once, and then stores the value internally when inserting it for the first time, which will cause some problems when other processes insert data. Then I didn’t Ac
Hibernate – JPQL correctly
After searching, I found that there is no correct join in JPQL. I saw that there is another way to implement it in both directions using JPA (not connected correctly but using pojo objects) but I a
Simulated Telnet Protocol C Language Client Program
First of all, we must understand the telnet protocol. The following two blogs gave me preliminary ideas.
https://www.cnblogs.com/liang-ling/p/5833489.html This one is relatively basic Introduction
Jetty SpringMVC Home Path Access
I use Jetty as a web server. The project uses the springmvc framework.
启动jetty 访问项目http://127.0.0.1:4444/mobile/
出现404异常
但用tomcat作为web服务器启动项目访问：http://127.0.0.1: 4444/mobile/
can
Delivery problem with SQOOP imports
Use the following sqoop1 import when importing
sqoop import –connect jdbc:oracle:thin:@ip:port/ORCL –username user –password pwd –table db.table –target-dir /path –delete-target-dir -m