为什么会多出来很多IBM Cognos Content Database XXXXX？

Steps

    On the computer where you installed Cognos Content Database, go to the c10_location/bin directory, and type the following command:

        On Windows, type

        derby.bat uninstall

        This command removes the Cognos Content Database service.

        On UNIX, type

        derby.sh stop

        This command stops the Cognos Content Database service.

    In the c10_location directory, delete the derby10.1.2.1 directory.

    In the c10_location/bin directory, delete the following files:

        On Windows, derby.bat

        On UNIX, derby.sh and derbyenv.sh

    On Windows, in the c10_location\logs directory, delete the derby.service file.

    In the c10_location directory, open the cmplst.txt file in a text editor.

    Remove lines containing Cognos Content Database values. The lines contain CCD and CMDERBY. For example:

    C8BISRVRCCD_version=

    C8BISRVRCCD_name=

    CCD_version=

    CCD_name=

    CMDERBY_version=

    CMDERBY_name=

    Tip: You can also comment the lines out by inserting # at the start of each line.

    Save the file.

    Start IBM Cognos Configuration.

    Under Data Access, Content Manager, do the following:

        Delete the Cognos Content Database.

        Configure a new database resource to point to a new content store.

    For more information, see Set Up Database Connectivity for the Content Store Database.

    Restart IBM Cognos BI.