|
|
You're in the
sql server programming
group:to read backup file
sql server programming:
I have: - server MS SQL MSDE (2000) - database 'COLLBASE' - table 'MAIN' - row: column 'NAME' value 'version' and column 'VALUE' value '003' I make backup files by SQL query. I have more backups for different versions of this database (different value in field 'VALUE' in table 'MAIN'). I would like to read this value from backup file without server assist, to get backup as ordinary file. How to do it? How to move in this file? What is physical structure of backup file? I can't to read this file from begin by compare strings, because these files are very large, few 100MB. regards
You must restore to another place and then you can search a query. You can't direct query from backup database. "Zenek"ë‹˜ì´ ìž‘ì„±í•œ ë‚´ìš©: [quoted text, click to view] > Hello,
> > > I have: > - server MS SQL MSDE (2000) > - database 'COLLBASE' > - table 'MAIN' > - row: column 'NAME' value 'version' and column 'VALUE' value '003' > > I make backup files by SQL query. > I have more backups for different versions of this database (different > value in field 'VALUE' in table 'MAIN'). > > I would like to read this value from backup file without server assist, > to get backup as ordinary file. > How to do it? > How to move in this file? > What is physical structure of backup file? > > I can't to read this file from begin by compare strings, because these > files are very large, few 100MB. > > regards > Zenek
How did you produce the backup files? Using the BACKUP DATABASE command?
-- Tibor Karaszi, SQL Server MVP http://www.karaszi.com/sqlserver/default.asp http://www.solidqualitylearning.com/ [quoted text, click to view] "Zenek" <zingiel@op.pl> wrote in message news:e4n9l6$min$1@news.onet.pl...
> Hello, > > > I have: > - server MS SQL MSDE (2000) > - database 'COLLBASE' > - table 'MAIN' > - row: column 'NAME' value 'version' and column 'VALUE' value '003' > > I make backup files by SQL query. > I have more backups for different versions of this database (different > value in field 'VALUE' in table 'MAIN'). > > I would like to read this value from backup file without server assist, > to get backup as ordinary file. > How to do it? > How to move in this file? > What is physical structure of backup file? > > I can't to read this file from begin by compare strings, because these > files are very large, few 100MB. > > regards
Hi,Zenek
Without RESTORE the database with the different name you will be able to check it out? [quoted text, click to view] "Zenek" <zingiel@op.pl> wrote in message news:e4n9l6$min$1@news.onet.pl... > Hello, > > > I have: > - server MS SQL MSDE (2000) > - database 'COLLBASE' > - table 'MAIN' > - row: column 'NAME' value 'version' and column 'VALUE' value '003' > > I make backup files by SQL query. > I have more backups for different versions of this database (different > value in field 'VALUE' in table 'MAIN'). > > I would like to read this value from backup file without server assist, to > get backup as ordinary file. > How to do it? > How to move in this file? > What is physical structure of backup file? > > I can't to read this file from begin by compare strings, because these > files are very large, few 100MB. > > regards > Zenek
Sorry, shoul be
Without RESTORE the database with the different name you will NOT be able to check it out? [quoted text, click to view] "Uri Dimant" <urid@iscar.co.il> wrote in message news:%23ud08VJfGHA.4776@TK2MSFTNGP05.phx.gbl... > Hi,Zenek > Without RESTORE the database with the different name you will be able to > check it out? > > > "Zenek" <zingiel@op.pl> wrote in message news:e4n9l6$min$1@news.onet.pl... >> Hello, >> >> >> I have: >> - server MS SQL MSDE (2000) >> - database 'COLLBASE' >> - table 'MAIN' >> - row: column 'NAME' value 'version' and column 'VALUE' value '003' >> >> I make backup files by SQL query. >> I have more backups for different versions of this database (different >> value in field 'VALUE' in table 'MAIN'). >> >> I would like to read this value from backup file without server assist, >> to get backup as ordinary file. >> How to do it? >> How to move in this file? >> What is physical structure of backup file? >> >> I can't to read this file from begin by compare strings, because these >> files are very large, few 100MB. >> >> regards >> Zenek > >
Tibor Karaszi napisa³(a):
[quoted text, click to view] > How did you produce the backup files? Using the BACKUP DATABASE command? yes> Regards,
Uri Dimant napisa³(a):
[quoted text, click to view] > Sorry, shoul be > Without RESTORE the database with the different name you will NOT be able > to > check it out? > > "Uri Dimant" <urid@iscar.co.il> wrote in message > news:%23ud08VJfGHA.4776@TK2MSFTNGP05.phx.gbl... >> Hi,Zenek >> Without RESTORE the database with the different name you will be able to >> check it out? >> >> >> "Zenek" <zingiel@op.pl> wrote in message news:e4n9l6$min$1@news.onet.pl... >>> Hello, >>> >>> >>> I have: >>> - server MS SQL MSDE (2000) >>> - database 'COLLBASE' >>> - table 'MAIN' >>> - row: column 'NAME' value 'version' and column 'VALUE' value '003' >>> >>> I make backup files by SQL query. >>> I have more backups for different versions of this database (different >>> value in field 'VALUE' in table 'MAIN'). >>> >>> I would like to read this value from backup file without server assist, >>> to get backup as ordinary file. >>> How to do it? >>> How to move in this file? >>> What is physical structure of backup file? >>> >>> I can't to read this file from begin by compare strings, because these >>> files are very large, few 100MB. >>> >>> regards >>> Zenek >> > > I have my small program for several database's operations and I want fast to view, fast to know versions of backups (to read value of one field), I want not to use server or some libraries, I want to use f.e. in C fopen function and by fseek to get to needed information. These backups come from different peoples, has different names and I must (want very much) to know databases versions, without RESTORE,
[quoted text, click to view]
On Sun, 21 May 2006 19:09:45 +0200, Zenek wrote: (snip) [quoted text, click to view] >I have my small program for several database's operations and I >want fast to view, fast to know versions of backups (to read value of >one field), I want not to use server or some libraries, I want to use >f.e. in C fopen function and by fseek to get to needed information. Hi Zenek, Let me check if I understand you correctly: you want to code your own program that looks in SQL Server database backup file, then reads the first couple of hunderd (or more) bytes to get some information about the database that it's a backup of? To write such a program, you'd have to know how a SQL Server backup file is structured. As far as I know, Microsoft has not disclosed this information. That leaves you with pretty few options. Debugging or otherwise revere engineering the source code is explicitly prohibited in the license. I'm not sure if attempting to analyze the backup file's structure by examining it and/or by trial and error is also included in this provision - you'd have to consult a lawyer to find out. As far as I can tell, this leaves you with only one option - contact Microsoft and ask them under what conditions they'd be willing to share either the backup file format or the source code of the backup or restore routines with you. I'm afraid your odds are pretty slim, but it never hurts to ask... --
Zenek (zingiel@op.pl) writes:
[quoted text, click to view] > I have my small program for several database's operations and I > want fast to view, fast to know versions of backups (to read value of > one field), I want not to use server or some libraries, I want to use > f.e. in C fopen function and by fseek to get to needed information. > These backups come from different peoples, has different names and I > must (want very much) to know databases versions, without RESTORE, > without SERVER! :) First of all, this topic is discussed both in this newsgroup and in comp.databases.ms-sqlserver. Please do not post the same question to multiple newsgroups indepentently. You have not made a very good job in explaining what you are looking for. First I got the impression was that the data you were looking for was data in aome table in the database. But the above indicates that you want to read metadata about the backup itself. In such cases, there is no need to restore the entire database. Instead you can use RESTORE HEADERONLY to get this information. Yes, I know you've said you want to do this without server or library, but that is such a hopelessly dead end, that you have no choice but to discard it. -- Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se Books Online for SQL Server 2005 at http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx Books Online for SQL Server 2000 at
Don't see what you're looking for? Try a search.
|
January 2003
March 2003
April 2003
May 2003
June 2003
July 2003
August 2003
September 2003
October 2003
November 2003
December 2003
January 2004
February 2004
March 2004
April 2004
May 2004
June 2004
July 2004
August 2004
September 2004
October 2004
November 2004
December 2004
January 2005
February 2005
March 2005
April 2005
May 2005
June 2005
July 2005
August 2005
September 2005
October 2005
November 2005
December 2005
January 2006
February 2006
March 2006
April 2006
May 2006
June 2006
July 2006
August 2006
September 2006
October 2006
November 2006
December 2006
January 2007
February 2007
March 2007
April 2007
May 2007
June 2007
July 2007
August 2007
September 2007
October 2007
November 2007
April 2008
| home · blog · groups | Questions? Comments? Contact the dn |