fabia...@itbizolutions.com.au [firebird-support] skrev:
I have been trying to migrate from FB2.54 into FB 3 for a few weeks,
and after hitting a string related error for some time i have got to
the point where I do understand the issue, but I don't know how to
solve it. The issue is pretty simple, the FB 2.54 DB contains a few
characters that are not allowed into the FB 3 database, one example of
a character causing an error during the restore was "Mcgarrity’s"
(note the ’) as it appears to be outside the scope of the FB3 string
domain, I have trying creating a new FB3 DB with many different
charsets but none works. The other string causing issues is for
example "΢ÈíÑźÚ", I have many records with this type of strings
because the DB contains raw emails received by the system, stored into
Varchars, and apparently some emails contain very weird characters,
all were handled by FB2.54 but FB3 rejects the records. I have been
able to isolate all recrods with issues using IBExpert's table data
comparer function, as it created a script with all recrods from all
tables from FB2.54 and when running the script against FB3.0 it
singles out all the offending records.
Can anyone advise what options I have available to force FB3.0 to
accept any stuff into string fields?
The first thing that comes to mind is that ' needs to be duplicated
inside string literals, so if your method of upgrading is backing up to
insert statements, it might be the case that the backup file is
incorrectly formatted in this reagard. I.e. to insert Mcgarrity's you
would insert this string literal: 'Mcgarrity''s' (note the duplicated ').
Apart from that I would recommend UTF-8 for "everything", i.e. old table
charset, connection charset when performing backup, backup file format,
connection charset for importing the backup file into FB3, charset for
all char/varchar columns in new database. Not sure all those "places"
are even applicable.
Are you using gbak for backup from 2.5 and restore into 3.0, or how are
you actually trying to perform the upgrade?
Regards,
Kjell
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