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Shared Images
The Mimer SQL distribution contains a number of shareable images which are located in the MIMLIB8 directory.
The shared images are installed by the MIMSETUP8 command procedure when defining logical names in the SYSTEM or GROUP name table.
Mimer SQL applications are linked with the shareable library MIMLIB8:MIMDB8.EXE.
When the application image is activated, the OpenVMS system locates the correct shareable image by using the logical name MIMDB8 (which MIMSETUP8 has defined as MIMLIB8:MIMDB8). This allows users to run applications with other versions of Mimer SQL by using the MIMSETUP8 procedure, without having to re-link the applications.
If you start an image that is installed with privileges or if you do not have read (R) access to the image file, OpenVMS will only use logical names defined in executive mode when activating shareable images. This is a security precaution that OpenVMS takes to avoid activating non-trusted shareable images together with trusted images.
Note: All logical names that MIMSETUP8 defines in the SYSTEM logical name table are defined in executive mode. This means that privileged or protected images will run the Mimer SQL version defined in the SYSTEM table even if there is another Mimer SQL version defined in one of the other tables!
 Upright Database Technology AB Voice: +46 18 780 92 00 Fax: +46 18 780 92 40 dbtechnology@upright.se |
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