tableau connect to multiple data sources

Source: Multiple data sources in the spring framework create a configuration instance code that loads and implements dynamic switchingSource code: Http://www.zuidaima.com/share/1774074130205696.htmIn our project, we encountered the problem of connecting multiple databases to our projects, and different clients accessin

In the previous section, we talked about multiple data scenarios:1. Different data sources (different database vendors, different business scope, different business data)2. Unlike SQL mapper files,3. MyBatis + Data dialect differe

Map 3D can connect to various data sources through FDO technology, including SHP files, SDF files, MySQL, SQL Server Spatial, Oracle, and so on. Of course, connecting to different data sources must have different parameters, or be understood as a component of the connection

The same project can sometimes involve multiple databases, or multiple data sources. Multiple data sources can be divided into two situations:1) Two or more databases are not relevant,

=========================================================================================To this, the configuration of the multi-data is basically complete, so easy. But .....Some of the issues we need to address are as follows:1. If the above 2 data, data sheet, structure business, etc. are not, then the above configuration is not a problem (this time did not jo

Use Spring Boot to configure dynamic data sources to access multiple databases. I wrote a blog titled Spring + Mybatis + Mysql to build a distributed database access framework. It describes how to configure dynamic data sources through Spring + Mybatis to access

Use ADO. net can connect to SQL Server, access, Excel, XML and other databases. First, create a connection and then use the connection. open the connection before use, and remember to close the connection. the following sections describe:1. Connect to SQL ServerThe using system. data; and using system. Data. sqlclient

When you do a project, you need to display the first few data from different groups in the same GridViewSeveral technical points:1, data grouping, this method does not use GROUP by2. Several query merge bindings with the same result format3, take the query results before or after a number of datapublic int Bindliftdata (){int count = 0;using (mysqlconnection conn = new Mysqlconnection (dbserver)){Frddata db

/bifoundation/oraclebiapplication/coreapplication/setup/user.sh The purpose of this step is to add the SQL Server driver to the startup environment variable, which isAfter opening the user.sh file, add the following at the bottom: #SQLServer Parameters #--------------------------------------- ld_library_path=/user/local/oracle_ bi1/common/odbc/merant/5.3/lib:$ ld_library_path Export Ld_library_path Save and exit after add completeB, modify the ODBC configuration file, odbc.sh

this configuration to create a DataSource. Then, the SqlSessionFactoryBean and SqlSessionTemplate that use the DataSource are automatically created. It will automatically scan your Mappers, connect to SqlSessionTemplate, and register it in the Spring context. spring.datasource.url=jdbc:mysql://localhost/test spring.datasource.username=dbuser spring.datasource.password=dbpass spring.datasource.driver-class-name=com.mysql.jdbc.Driver For more paramete

Computing report. In the script dataset, you can write scripts to complete computing tasks step by step. The syntax is the same as that of the Set calculator. You can also directly use the data sources and parameters defined in the report. You can use the script dataset as follows: 1. Click "add" in the dataset settings window. The dataset Type dialog box is displayed. Select "script dataset "; 2. Compile

Sometimes you need to connect to multiple databases, data sources are inconsistent and need to be configured.1, configuration XML. A data source, a template.......Multiple configurations can be repeated.The corresponding class is