connection
举一反三
- 列声明并创建Connection对象的语句,正确的是()。 A: Dim ADOcn As New Connection B: Dim ADOcn As Connection C: Declare ADOcn As New Connection D: Declare ADOcn As Connection
- 3.The keyboard can be divided into independent connection and ( ) according to the connection mode.
- 在JDBC中使用事务,想要回滚事务的方法是什么? A: Connection的commit() B: Connection的setAutoCommit() C: Connection的rollback() D: Connection的close()
- 关于Connection的描述,正确的是(<br/>). A: 可以从DriverManager上取得Connection B: 可以从DataSource上取得Connection C: 在方法结束之后Connection会自动关闭 D: Connection是线程安全(Thread-safe)
- connection