Lars Vogel wrote:
Hello,

is there a way to create a database copy with only the necessary files?

I am not quite sure I understand what you mean by the necessary files.


Background: I did copy "my" database back and forth between a server and my PC. I always copied the whole directory and did paste it into the existing target directory in the assumption that all files would be overwritten.

I realized later that as new files are created the file set is not always the same. Now I want to identify the files which are still used as the directory is unnecessary large for my small dataset.

Creating and dropping tables and indexes will create and remove the corresponding files, respectively. Compressing a table may also create a new file for it.

Note that many of the files represents system tables that are necessary even if you do not access them directly.

Is it not an option to recreate the target directory before you do the copy? That way, there should be no unecessary files.


The CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE seems to copy all database files even if they are not in use (see below for the jave coding). Is there a ways to identify and copy only the used files?

Best regards, Lars


        CallableStatement cs = con
        .prepareCall("CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE(?)");
        cs.setString(1, "c:/temp/backupdir3");
        cs.execute();
        cs.close();

Which version are you using? As far as I know, the non-blocking backup mechanism introduced in 10.2, does only backup the tables that are defined in the current database dictionary.

--
Øystein

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