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The Oracle listener

 

In order to access to the same database where are you working outside the database server you must activate the service called listener, it has to be listening.

It can happens that the database is properly raised and can not connect from other servers, which are also set correctly (correct TNSNAMES, etc.).. 

In these cases could be that the listener has a problem, or simply has not been initiated.

To Check the status, start or stop it is very simple. Just open a command line session (console terminal, etc..) with the user that has installed the database, and run the lsnrctl command with the following parameters:

  • Check your state:
      > lsnrctl status

  • Stop the listener:
      > lsnrctl stop

  • Start the listener:
      > lsnrctl start

Keep in mind that when you stop the listener, the connections that are already in the database won't be closed, so a short stop is not very traumatic, only connections trying to enter while the listener is stopped are rejected, should not affect anyone who already has an opened session.

Dataclean.es: a project of Data Cleansing services

Average: 3 (1 vote)

It does already enough time I presented me the possibility to start a project to offer cleaning services of data online. If we speak in terms of what plows he is heard more, we would be able to interpret it as a new meaning of the acronyms DAAS: Datacleansing Ace TO Service.

At that time I chose the name of Dataclean.es, among others things because the control was free. I registered it to my name and I did an approximation to a plan of business. Until I began to prepare a web where wanted to create a first simple version of the idea. This prototype remained in practically a simple structure, but I think that can serve to illustrate the intention that had.

As in the end me did not I decide to give the great step and to develop the project, and is a grief that the effort that dedicated to do the approach remain in a document of my portable one, I have determined to share the plan of business, enclosed in this post. I swallowed I have placed online the prototype web that began. Notice that is just as I left it, functions almost nothing.

Web Dataclean.es

 

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