combining multiple data sources into one view tableau

Using this post, I am going to explain "working with multiple data-sources in uitableview ". Expected output of this tutorial is demonstrated by following images. Step 1: load data into your arrays (if you are fetching from XML/Web do that, I have implemented static here)-(Void) viewdidload { [Super viewdidload]; Self

The implementation demo of multiple data sources in WPF. listview has a combox place. listview data comes from the XML data source and combox comes from another data source. Resource: Value conversion: public class Backgroun

1, the realization of multiple data sources, Kua Library query; 2, through the configuration of Spring-mybatis.xml transactions and AOP to complete a service layer of multiple data source transaction support exception rollback;

; Bean> Transaction Management - BeanID= "Transctionmanager"class= "Org.springframework.jdbc.datasource.DataSourceTransactionManager"> Propertyname= "DataSource"ref= "DataSource"> Property> Bean> Tx:annotation-drivenTransaction-manager= "Transctionmanager"/> Beans>2: Write a Dynamicdatasource class to inherit Abstractroutingdatasource, and implement the Determinecurrentlookupkey method Import Org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;

updates or deletes the data, and the other transaction two times queries the data inconsistently. Phantom reads: One transaction adds a new operation to the data, and the other transaction two times queries the data is inconsistent. Dirty reads: Primarily for column content changes. Phantom reads: Mainly for the chang

") PublicEntitymanager Entitymanager (Entitymanagerfactorybuilder builder) {returnEntitymanagerfactorysqlite (builder). GetObject (). Createentitymanager (); } /*** Configure Transaction TransactionManager * *@paramBuilder *@returntransaction manager*/@Bean (Name= "Transactionmanagersqlite") PublicPlatformtransactionmanager transactionmanagersqlite (Entitymanagerfactorybuilder builder) {return NewJpatransactionmanager (Entitymanagerfactorysqlite (builder). GetObject ()); }}Then the Co

When deploying an application today, an error is always reported: 2010-07-30 15:23:00, 464 warn [COM. arjuna. ATS. JTA. logging. loggeri18n] (main) [com. arjuna. ATS. internal. JTA. transaction. arjunacore. lastresource. disallow] [COM. arjuna. ATS. internal. JTA. transaction. arjunacore. lastresource. disallow] adding multiple last resources is disallowed. current resource is Org. JBoss. resource. connectionmanager. txconnectionmanager $ localxaresou

How to configure multiple data sources for ibatis Document category: Database 1. applicationcontext. xml Java code Class = "org. Apache. commons. DBCP. basicdatasource"> Value = "ianywhere. ml. jdbcodbc. jdbc3.idriver"> Value = "JDBC: ODBC: Driver = SQL Anywhere 11; Eng = ZYX; links = TCPIP {Host = 10.144.99.46; Port = 2998};">

/utilhttp://www.springframework.org/schema/util/spring-util-4.0.xsd">class= "Com.alibaba.druid.pool.DruidDataSource"Destroy-method= "Close" > class= "Com.alibaba.druid.pool.DruidDataSource"Destroy-method= "Close" > class= "Com.jdd.ds.MultipleDataSource" > class= "Org.mybatis.spring.SqlSessionFactoryBean" > 8, to here and spring-related configuration is basically finished, in fact, after the configuration of MySQL master and slave replication, is the operation of the write library is synchronized

; } } Dbcontextholder Source Public classDbcontextholder {Private StaticFinal threadlocalNewThreadlocal(); /** * Set the current database. * @param dbType*/ Public Static voidSetdbtype (String dbType) {Contextholder.Set(DbType); } /** * Get current data source. * @return*/ Public Staticstring Getdbtype () {string str= (String) contextholder.Get(); returnstr; } /** * Clear Contextual

Multiple data source issues are common, such as reading and writing detached database configurations. The original project has new requirements, the Bureau requested a new server to provide a code, involving a multi-data source problem. The research results are as follows: 1. Configure multiple DataSource First 2. Wri

JBoss is a very powerful Java EE application Server, but this powerful feature also brings complexity. The author of this article, Marcus Zarra, analyzes how to configure multiple databases and data sources in JBoss. Configure a data source The default setup process for JBoss is a total of three configuration options

Transactionstatus object In the need of a consistency processing database, Try...catch. Normal process, Platformtransaction.commit (transactionstatus), when an exception occurs, call Platformtransaction.rollback (Transactionstatus) How the 2,spring Platformtransactionmanager is associated with the underlying data sourceIn the opening section, using a JDBC data source, the transaction is also a

"); - } - + /** - * Switch to a custom data source: DataSource 2 + */ A Public Static voidSwitchDataSource2 () { atSetdatasourcekey ("DataSource2"); - } -}3. Enable data source switching via Abstractroutingdatasource1 Public class extends Abstractroutingdatasource {23 @Override4 protected Object Determinecurrentlookupkey () {5 return Threadlocalutil.getdatasource

multiple data source issues are common, such as reading and writing detached database configurations. The original project has new requirements, the Bureau requested a new server to provide a code, involving a multi-data source problem.The research results are as follows:1. Configure multiple DataSource First[HTML]

, "AAA", and Jdbctemplate2.update ("INSERT into user (ID, Name,age) VALUES (?,?,?) ", 1," BBB "," Jdbctemplate2.update "(" INSERT into USER (id,name,age) VALUES (?,?,?) ", 2," BBB ", 31 ); Assert.assertequals ("1", Jdbctemplate1.queryforobject ("SELECT count (1) from user", String.class)); Assert.assertequals ("2", Jdbctemplate2.queryforobject ("SELECT count (1) from user", String.class));}}DatabaseDROP TABLE IF EXISTS ' user '; CREATE TABLE ' user ' ( ' id ' int (one) ' NOT null auto_increment

Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xmlns:p= "http://www.springframework.org/schema/p"xmlns:context= "Http://www.springframework.org/schema/context" xmlns:tx= "Http://www.springframework.org/schema/tx"xmlns:aop= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans-4.2.xsdHttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.

= a.id) ") ListFindviewinfo (); @Query ("Select New Com.demo.test.Entity.ViewInfo" + "(U) from UserInfo u WHERE u.addressid are NULL OR u.addressid not in ( Select a.ID from Address a) ") ListFindviewinfoleft (); @Query ("Select New Com.demo.test.Entity.ViewInfo" + "(a) from Address a WHERE a.id not in (SELECT U.addressid from Userinf o u WHERE u.addressid is not NULL) ") Listfindviewinforight (); }Then query the service layer for each part: Public voidSummary () {System.out.println ("=