datasource

问题 I have the following development environment for ASP.Net WebPage VS 2015 Professional Version, using .Net Framework 4.0 MySQL Server 5.6, MySQL .Net Connector 6.9.5 MySQL for Visual Studio 2.0.2 I am able to connect to the MySQL database server from Visual Studio Server Explorer. I am trying to create a SQL DataSource for MySQL Database. When I go through the configure data source wizard, it works fine by populating the tables and columns for each table in "Configure Select Statement form",

问题 I was wondering if I can run multiple c3p0 datasources for one DB, something like: <bean id="dataSource1" class = "com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${db.driverClassName}"/> <property name="jdbcUrl" value="${db.url}/schema1"/> <property name="user" value="${db.username}"/> <property name="password" value="${db.password}"/> <property name="acquireIncrement" value="1" /> <property name="idleConnectionTestPeriod" value="100"/>

问题 How to set database in Grails 3? Manual looks obsolete here: http://grails.github.io/grails-doc/3.0.x/guide/single.html#dataSource since it gives an example of setting with grove code like follows: dataSource { pooled = true dbCreate = "update" url = "jdbc:mysql://localhost:3306/my_database" driverClassName = "com.mysql.jdbc.Driver" dialect = org.hibernate.dialect.MySQL5InnoDBDialect username = "username" password = "password" ... while I have application.yml with dataSource: pooled: true

问题 I have a UIViewController with one UITableView. But that tableView has two data sources. Basically a UIButton would decide which data source is active. How might I do that? there is no such method as [self.tableView reloadData:myDataSourceArray]; Which would help a great deal towards discriminating which data source to use and which UITableViewCell extension to use. So how might I go about this? I say button to keep it simple, but in reality, dataSource_1 is preloaded from server while

问题 There are a huge number of questions relating to this topic but I have not yet come across my use case so here goes. This is my first couple weeks in OBJ-C so I have no clue what I am doing with some of this stuff... What I Want I do not particularly enjoy seeing so many classes in OBJ-C that overload the view controller classes with every and any function on this earth. It looks dirty and feels gross as far as OOP goes. In my use case I don't have a full screen table just a little one to

问题 I am going to create batch for GCP spanner am planning to use JdbcCursorItemReader that needs datasource, So i need to create datasource for my GCP Spanner instance, Can you please suggest me on this? 回答1: You need to add the Cloud Spanner JDBC driver to your build path like this: <dependency> <groupId>com.google.cloud</groupId> <artifactId>google-cloud-spanner-jdbc</artifactId> <version>1.9.0</version> </dependency> Then you can define a Spring data source in the normal way. Doing it

问题 I am going to create batch for GCP spanner am planning to use JdbcCursorItemReader that needs datasource, So i need to create datasource for my GCP Spanner instance, Can you please suggest me on this? 回答1: You need to add the Cloud Spanner JDBC driver to your build path like this: <dependency> <groupId>com.google.cloud</groupId> <artifactId>google-cloud-spanner-jdbc</artifactId> <version>1.9.0</version> </dependency> Then you can define a Spring data source in the normal way. Doing it

问题 I am first time making a webapp for Jboss server. For JBoss we have the jndi details, but I am wondering how to create the Datasource using it in spring application context. If anyone has an example to create the connection, please share it. 回答1: I will put this sample here. just to show another way to do it. <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName"> <value>java:jboss/datasources/DSName</value> </property> </bean> 回答2: I found the

问题 I have a SQL Server that houses Several Databases. I have a Main Database that holds several tables with entities and ID numbers. Then, each one of those entities has a correlating database (not a table, but database) with all of its information. For example, if the an entity in the MAIN database has an ID number of 1, there would be an SubDatabase1 Database on the same SQL Server. Essentially, what I am trying to do is create a stored procedure in the MAIN Database, that collects data from

问题 I know JNDI lookup in grails is as simple as datasource { jndiName = "java:comp/env/myDataSource" } this works great on Tomcat. On other containers (WebLogic, JBOSS, etc.) the jndiName for the same thing would be just myDataSource . The question is how do I configure this to be generic and portable so that the code does not need to be changed based on the deploy target? 回答1: You might be able to key off a system property that you know will be set when running in Tomcat and not set anywhere