Microframe Corporation 3007 Series Podręcznik Użytkownika Pobierz pdf (Strona 78)

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Status Codes

30: The file specified is not a MicroKernel file

This status code is returned in one of the following situations:

 The MicroKernel did not create the file, or a pre-v3.x

MicroKernel created it.

 While using an earlier version of Btrieve, you opened a file

created by a later version that has a format incompatible with the

earlier version.

 The first page of the file may be damaged. Use a backup copy of

your data file. If you receive this status code and you suspect that

the header page of the source file is damaged, recover the file as

described in Advanced Operations Guide.

 You have attempted to access a valid Btrieve file. This status code

is returned when old engines access newer file formats. A likely

scenario is that data created by a new server engine is later used

by an earlier Workgroup engine. Status 30 can be reported if the

file format is newer than the MicroKernel engine attempting to

open it. Particularly, accessing a 7.x file with a 6.x engine causes

this error.

NOTE: Previously, accessing a 6.x file with a 5.x engine returned

Status 2: "the application encountered an I/O error".

31: The file is already extended

This status code is obsolete in MicroKernel versions 6.0 and later.

An application tried to extend a file that had already been extended;

you can only extend a file once.

32: The file cannot be extended

The MicroKernel must create an extension file to accommodate a file

which is growing larger than the operating system file size limit.

However the MicroKernel encounters an error from the operating

system when it tries to create and open the new extension file.

Possible causes for receiving this status code include the following:

the directory is full, the disk is full, or the MicroKernel has not been

granted sufficient rights by the operating system.

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Microframe Corporation 3007 Series Podręcznik Użytkownika Strona 78