http://docs.oracle.com/cd/B10500_01/server.920/a96652/ch05.htm
Useful reference for using SQL Loader.
Using it for importing a file into the database is more convenient.
2012年4月3日 星期二
2012年1月31日 星期二
2011年12月15日 星期四
2011年12月7日 星期三
2011年12月1日 星期四
2011年11月25日 星期五
2011年11月17日 星期四
2011年11月15日 星期二
2011年11月9日 星期三
MQ, Channel
What's the use of channels in queue manager? It's for communication between queue managers. This applies to the scenarios of clusters of queue managers.
"Communication between queue managers relies on a channel. Each queue manager uses one or more channels to send and receive data to other queue managers. A channel is uni-directional; a second channel is required to return data. In a TCP/IP based network, a channel will send or receive data on a specific port. A sending channel has a defined destination and is associated with a specific transmission queue, the mechanism by which messages are queued awaiting transmission on the channel; a receiving channel will receive data from any other queue manager with a sending channel of the same name. When a receiving channel receives a message, it is examined to see which queue manager and queue it is destined for. In the event of a communications failure, MQ can automatically re-establish a connection when the problem is resolved."
Reference: http://en.wikipedia.org/wiki/IBM_WebSphere_MQ
"Communication between queue managers relies on a channel. Each queue manager uses one or more channels to send and receive data to other queue managers. A channel is uni-directional; a second channel is required to return data. In a TCP/IP based network, a channel will send or receive data on a specific port. A sending channel has a defined destination and is associated with a specific transmission queue, the mechanism by which messages are queued awaiting transmission on the channel; a receiving channel will receive data from any other queue manager with a sending channel of the same name. When a receiving channel receives a message, it is examined to see which queue manager and queue it is destined for. In the event of a communications failure, MQ can automatically re-establish a connection when the problem is resolved."
Reference: http://en.wikipedia.org/wiki/IBM_WebSphere_MQ
2011年10月6日 星期四
Cloud
Cloud computing? What's that?
iCloud?
PCCW uHub? What's the difference with online storage?
Some companies working in cloud services provider:
Cloud solutions ( http://www.cloudsolutions.asia/cloud-computing-solutions.html)
iCloud?
PCCW uHub? What's the difference with online storage?
Some companies working in cloud services provider:
Cloud solutions ( http://www.cloudsolutions.asia/cloud-computing-solutions.html)
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