microstrategy data sources

Recently in doing a very simple small project, although simple, but also encountered a lot of problems, now roughly recorded: The project is basically divided into two main modules: I do this piece, with the current universal SSH framework to maintain two tables, a user table, an Account table, two tables have no connection, everything is smooth. The other is a colleague to do another module, is a timer task, set a fixed time interval, every time this period will carry out this task, carried out

Label:The most anticipated feature in the spark1.2 version is external Data Sources, which allows you to directly register external data Sources as a temporary table that can be queried via SQL with existing tables and so on. The External Data

kylin2.3 version enables JDBC data sources (you can generate hive tables directly from SQL, eliminating the hassle of manually conducting data to hive and building hive tables)DescriptionThe JDBC data source, which is essentially a hive data source.Performance is still not g

two data (MySQL, SQL Server), from the yellow highlighting, basically do the following points:1. Data sources are different (nonsense, is a multi-data source), and even the database vendor is different (reflected in the Database.properties file)2. MyBatis + database Paging engine is different (embodied in mybatis-conf

JDBC data sources and connection poolingDatabase connection pooling is the creation of enough database connection pools when the application starts, requiring access in Java programsDatabase, you can get an idle connection from the data source and run out of time in the return to the connection poolInstance:+mysql5.5 the configuration of

spring specifically provides the Jndiobjectfactorybean class that references the Jndi resource.XML code:[HTML]View Plaincopy Bean id= "dataSource" class="Org.springframework.jndi.JndiObjectFactoryBean"> property name= "jndiname" value="java:comp/env/jdbc/orclight"/> Bean> [HTML]View Plaincopy beans xmlns=http://www.springframework.org/schema/beans xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance xmlns:jee=Http://www.springframework.org/schema/je

Way One:See blog https://www.cnblogs.com/AmbitiousMice/p/6027674.htmlThis way, you need to set the corresponding data source each time you call DAO.Way two:Configure the relevant DAO interface for the corresponding data source directly in the MyBatis configuration file (mapper.xml configuration file)1. Database configuration fileJdbc.driver=com.mysql.jdbc.driverjdbc.url=jdbc:mysql://duingold.mysql.rds.aliyu

In the big data era, data is not only massive, but also in various forms and diversified. For Report tools, data must be obtained, computed, and displayed from a variety of data sources. However, most reporting tools are not well adapted to diverse

Recently saw a blog on the Internet, inheriting the spring abstractroutingdatasource definition of their own dynamic data source, you can dynamically switch to different database data sources, it is easy to use. Import Org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource; /** * Custom dynamic routed data