By Geoff Hirst - 3/19/2008
Chaps,I want to offer my users a backup routine from my application, which may or may not be on the same machine as SQL Server Express. My users are not SQL Server literate and as such I want to protect them from it as much as I can. I have a routine from a while ago, that allows the application I have written to backup the SQL Server Express database that it uses. This routine was written for an application that ran on the same machine as SQL Server Express. Is there any routine built into SF, that will undertake backup and possibly restore? If not, can you advise how I get the Microfour.Strataframe.DBEngine.SQL.SQLServerInfo structure populated? It has everything in it that I need to modify my existing application. Your advice, as always is appreciated. regards Geoff Hirst
|
By Edhy Rijo - 3/19/2008
Hi Geoff,Sorry I can not offer any help on this one, but I am very interested in the results of this thread since I have an application that will be use by independent customers with MS-SQL-EXPRESS and a backup solution would be very good to have.
|
By Greg McGuffey - 3/19/2008
I'm not sure either, but I'd lookup how to run a backup/restore in SQL Books online. I know it can be done via a script. The tricky part is likely that you'd need to specify a device to backup to that was relative to the machine SQL Server is located on. Once you know what the script is you can easily run it via a BO or just straight ADO.net.
The SF team uses SQL Management Objects (SMO) for the DDT, which allows for normal .NET programing to do these sorts of things. I'd investigate that also. Hopefully Ben or Trent will pipe in here and provide more specific info. 
|
By Keith Chisarik - 3/19/2008
This might fall under "cheesy but it works", this is how I backup SQL Express databases. You could probably automate it pretty easily into your app. I have been using it for years and know it works well. Just change the parameters as required. You can set log directory, backup directory, # of copies, rollover, frequency, database name (ALL_USER) for all user databases, etc etc
I stole all this long ago, hopefully I left the credits in the scripts.
You will need to run the SQL Express Surface Area Configuration tools to allow the "features" xp_cmdshell and OLE Automation
Keith
<<< wouldn't let me attach the file types so here >>
This line goes in a script file:
sqlcmd -S.\SQLExpress -i"c:\database backup scripts\backupalldatabases.sql"
Here is the code for "backupalldatabases.sql" referenced above:
exec expressmaint
@database = 'ALL_USER',
@optype = 'DB',
@backupfldr = 'c:\SQL Express DB Backups',
@reportfldr = 'c:\SQL Express DB Backup Reports',
@verify = 1,
@dbretainunit = 'days',
@dbretainval = 5,
@rptretainunit = 'weeks',
@rptretainval = 1,
@report = 1
Here is the code to create the maintenance sproc on the express instance, just run it once:
use master
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[expressmaint]')
and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[expressmaint]
GO
CREATE PROCEDURE expressmaint
(
@database sysname, -- database name | ALL_USER | ALL_SYSTEM
@optype varchar(7), -- LOG | DB | DIFF | REINDEX | REORG | CHECKDB
@backupwith varchar(500) = NULL, -- additional backup options
@backupfldr varchar(200) = NULL, -- folder to write backup to
@reportfldr varchar(200) = NULL, -- folder to write text report
@verify bit = 1, -- verify backup
@verifywith varchar(500) = NULL, -- additional verify options
@dbretainunit varchar(10) = NULL, -- minutes | hours | days | weeks | months | copies
@dbretainval int = 1, -- specifies how many retainunits to keep backup
@report bit = 1, -- flag to indicate whether to generate report
@rptretainunit varchar(10) = NULL, -- minutes | hours | days | weeks | months | copies
@rptretainval int = 1, -- specifies how many retainunits to keep reports
@checkattrib bit = 0, -- check if archive bit is cleared before deleting
@delfirst bit = 0, -- delete before backup (handy if space issues)
@debug bit = 0 -- print commands to be executed
)
AS
/*
expressmaint
see http://www.sqldbatips.com/showarticle.asp?ID=27 for documentation
Date Author Notes
24/07/2004 Jasper Smith Initial release
*/
SET NOCOUNT ON
SET DATEFORMAT YMD
/************************
VARIABLE DECLARATION
************************/
DECLARE @fso int
DECLARE @file int
DECLARE @reportfilename varchar(500)
DECLARE @backupfilename varchar(500)
DECLARE @delfilename varchar(500)
DECLARE @cmd varchar(650)
DECLARE @backupfldrorig varchar(200)
DECLARE @databaseorig sysname
DECLARE @table nvarchar(600)
DECLARE @exists varchar(5)
DECLARE @err int
DECLARE @start datetime
DECLARE @finish datetime
DECLARE @runtime datetime
DECLARE @output varchar(200)
DECLARE @errormsg varchar(210)
DECLARE @datepart nchar(2)
DECLARE @execmd nvarchar(1000)
DECLARE @delcmd nvarchar(1000)
DECLARE @exemsg varchar(8000)
DECLARE @filecount int ; SET @filecount = 0
DECLARE @delcount int ; SET @delcount = 0
DECLARE @hr int ; SET @hr = 0
DECLARE @ret int ; SET @ret = 0
DECLARE @cmdret int ; SET @cmdret = 0
DECLARE @delbkflag int ; SET @delbkflag = 0
DECLARE @delrptflag int ; SET @delrptflag = 0
DECLARE @filecrt int ; SET @filecrt = 0
DECLARE @user sysname ; SET @user = SUSER_SNAME()
DECLARE @jobdt datetime ; SET @jobdt = GETDATE()
DECLARE @jobstart char(12) ;
DECLARE @stage int ; SET @stage = 1
SET @jobstart = CONVERT(char(8),@jobdt,112)+LEFT(REPLACE(CONVERT(char(8),@jobdt,108),':',''),4)
IF RIGHT(@reportfldr,1)<>'\' SET @reportfldr = @reportfldr + '\'
IF RIGHT(@backupfldr,1)<>'\' SET @backupfldr = @backupfldr + '\'
SET @backupfldrorig = @backupfldr
SET @databaseorig = @database
CREATE TABLE #files(filename varchar(255))
CREATE TABLE #exists(exist int,isdir int,parent int)
CREATE TABLE #databases(dbname sysname)
/**********************************
INITIALIZE FSO IF @report = 1
***********************************/
IF @report = 1
BEGIN
EXEC @hr=sp_OACreate 'Scripting.FileSystemObject',@fso OUT
IF @hr <> 0
BEGIN
EXEC sp_OAGetErrorInfo @fso
RAISERROR('Error creating File System Object',16,1)
SET @ret = 1
GOTO CLEANUP
END
END
/************************
CHECK INPUT
************************/
-- check SQL2005 or higher
IF (select SUBSTRING(@@version,(CHARINDEX('-',@@version)+2),1))<9
BEGIN
RAISERROR('SQL2005 or higher is required for sp_expressmaint',16,1)
SET @ret = 1
GOTO CLEANUP
END
-- check sysadmin
IF IS_SRVROLEMEMBER('sysadmin') = 0
BEGIN
RAISERROR('The current user %s is not a member of the sysadmin role',16,1,@user)
SET @ret = 1
GOTO CLEANUP
END
-- check database exists and is online
IF @database NOT IN ('ALL_USER','ALL_SYSTEM')
BEGIN
IF (DB_ID(@database) IS NULL) OR ((select state from sys.databases where name = @database) <>0)
BEGIN
RAISERROR('Database %s is invalid or database status is not ONLINE',16,1,@database)
SET @ret = 1
GOTO CLEANUP
END
END
-- check @optype is valid
IF UPPER(@optype) NOT IN ('LOG','DB','DIFF','REINDEX','REORG','CHECKDB')
BEGIN
RAISERROR('%s is not a valid option for @optype',16,1,@optype)
SET @ret = 1
GOTO CLEANUP
END
-- check recovery mode is correct if trying log backup
IF @database NOT IN ('ALL_USER','ALL_SYSTEM')
BEGIN
IF (@optype = 'LOG' and ((select recovery_model from sys.databases where name = @database) = 3))
BEGIN
RAISERROR('%s is not a valid option for database %s because it is in SIMPLE recovery mode',16,1,@optype,@database)
SET @ret = 1
GOTO CLEANUP
END
END
-- no log backups for system databases
IF @database = 'ALL_SYSTEM'
BEGIN
IF @optype = 'LOG'
BEGIN
RAISERROR('%s is not a valid option for the option ALL_SYSTEM',16,1,@optype)
SET @ret = 1
GOTO CLEANUP
END
END
-- check that @backupfldr exists on the server
IF @optype NOT IN ('REINDEX','CHECKDB','REORG')
BEGIN
IF @report = 1
BEGIN
EXEC sp_OAMethod @fso,'FolderExists',@exists OUT,@backupfldr
IF @exists <> 'True'
BEGIN
RAISERROR('The folder %s does not exist on this server',16,1,@backupfldr)
SET @ret = 1
GOTO CLEANUP
END
END
ELSE
BEGIN
INSERT #exists
EXEC master.dbo.xp_fileexist @backupfldr
IF (SELECT MAX(isdir) FROM #exists)<>1
BEGIN
RAISERROR('The folder %s does not exist on this server',16,1,@backupfldr)
SET @ret = 1
GOTO CLEANUP
END
END
END
-- check that @reportfldr exists on the server
IF @reportfldr IS NOT NULL or @report = 1
BEGIN
IF @report = 1
BEGIN
EXEC sp_OAMethod @fso,'FolderExists',@exists OUT,@reportfldr
IF @exists <> 'True'
BEGIN
RAISERROR('The folder %s does not exist on this server',16,1,@reportfldr)
SET @ret = 1
GOTO CLEANUP
END
END
ELSE
BEGIN
DELETE #exists
INSERT #exists
EXEC master.dbo.xp_fileexist @reportfldr
IF (SELECT MAX(isdir) FROM #exists)<>1
BEGIN
RAISERROR('The folder %s does not exist on this server',16,1,@reportfldr)
SET @ret = 1
GOTO CLEANUP
END
END
END
-- check @dbretainunit is a vaild value
IF @optype NOT IN ('REINDEX','CHECKDB','REORG')
BEGIN
IF UPPER(@dbretainunit) NOT IN ('MINUTES','HOURS','DAYS','WEEKS','MONTHS','COPIES')
BEGIN
RAISERROR('%s is not a valid value for @dbretainunit (''minutes | hours | days | weeks | months | copies'')',16,1,@dbretainunit)
SET @ret = 1
GOTO CLEANUP
END
END
--check @dbretainval is a vaild value
IF @dbretainval<1
BEGIN
RAISERROR('%i is not a valid value for @dbretainval (must be >0)',16,1,@dbretainval)
SET @ret = 1
GOTO CLEANUP
END
-- check @rptretainunit is a vaild value if present
IF UPPER(@rptretainunit) NOT IN ('MINUTES','HOURS','DAYS','WEEKS','MONTHS','COPIES') and @rptretainunit IS NOT NULL
BEGIN
RAISERROR('%s is not a valid value for @rptretainunit (''minutes | hours | days | weeks | months | copies'')',16,1,@rptretainunit)
SET @ret = 1
GOTO CLEANUP
END
--check @rptretainval is a vaild value
IF @rptretainval<1
BEGIN
RAISERROR('%i is not a valid value for @rptretainval (must be >0)',16,1,@rptretainval)
SET @ret = 1
GOTO CLEANUP
END
/***********************************
list of databases to process
************************************/
IF @database IN ('ALL_USER','ALL_SYSTEM')
BEGIN
IF @database = 'ALL_USER'
INSERT #databases(dbname)
SELECT [name] from sys.databases where database_id > 4
AND (@optype <> 'LOG' OR recovery_model <> '3')
ELSE
INSERT #databases(dbname)
SELECT [name] from sys.databases where database_id in (1,3,4)
END
ELSE
INSERT #databases(dbname) SELECT @database
/***********************************
INITIALIZE REPORT IF @report = 1
************************************/
-- generate report filename
SELECT @reportfilename = @reportfldr + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_report_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_report_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_report_'
WHEN UPPER(@optype) = 'REINDEX' THEN '_Reindex_report_'
WHEN UPPER(@optype) = 'REORG' THEN '_Reorg_report_'
WHEN UPPER(@optype) = 'CHECKDB' THEN '_CheckDB_report_'
END + @jobstart + '.txt'
-- if no report just set @reportfilename to NULL
IF @report = 0 SET @reportfilename = NULL
IF @debug = 1
BEGIN
PRINT '@reportfilename = ' + ISNULL(@reportfilename,'NULL')
END
IF @report = 1
BEGIN
-- create report file
EXEC @hr=sp_OAMethod @fso, 'CreateTextFile',@file OUT, @reportfilename
IF (@hr <> 0)
BEGIN
EXEC sp_OAGetErrorInfo @fso
RAISERROR('Error creating log file',16,1)
SET @ret = 1
GOTO CLEANUP
END
ELSE
-- set global flag to indicate we have created a report file
SET @filecrt = 1
-- write header
EXEC sp_OAMethod @file,'WriteLine',NULL,''
SET @output = 'Expressmaint utility, Logged on to SQL Server [' + @@SERVERNAME + '] as ' + '[' + @user + ']'
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
IF UPPER(@optype) NOT IN ('REINDEX','CHECKDB','REORG')
BEGIN
SET @output = 'Starting backup on ' + convert(varchar(25),getdate(),100)
END
IF UPPER(@optype) = 'CHECKDB'
BEGIN
SET @output = 'Starting CheckDB on ' + convert(varchar(25),getdate(),100)
END
IF UPPER(@optype) IN ('REINDEX','REORG')
BEGIN
SET @output = 'Starting Reindex on ' + convert(varchar(25),getdate(),100)
END
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
/************************
BACKUP ACTIONS
************************/
IF UPPER(@optype) = 'CHECKDB' GOTO CHECK_DB
IF UPPER(@optype) IN ('REINDEX','REORG') GOTO REINDEX
-- if @delfirst = 1 we need to delete prior backups that qualify
IF @delfirst = 1 GOTO DELFIRST
-- this label is so that we can return here after deleting files if @delfirst = 1
DOBACKUP:
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT dbname FROM #databases ORDER BY dbname
OPEN dcur
FETCH NEXT FROM dcur into @database
WHILE @@FETCH_STATUS=0
BEGIN
-- set backup start time
SET @start = GETDATE()
-- write to text report
IF @report = 1
BEGIN
SET @output = '[' + CAST(@stage as varchar(10)) + '] Database ' + @database + ': ' +
CASE WHEN UPPER(@optype) = 'DB' THEN 'Full Backup '
WHEN UPPER(@optype) = 'DIFF' THEN 'Differential Backup '
WHEN UPPER(@optype) = 'LOG' THEN 'Log Backup '
END + 'starting at ' + CONVERT(varchar(25),@start,100)
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
-- backup subfolder
SET @execmd = 'IF NOT EXIST "' + @backupfldrorig + @database + '\" MKDIR "' + @backupfldrorig + @database + '\"'
EXEC master.dbo.xp_cmdshell @execmd,no_output
SET @backupfldr = @backupfldrorig + @database + '\'
SELECT @backupfilename = @backupfldr + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_'
END + @jobstart +
CASE WHEN UPPER(@optype) = 'LOG' THEN '.TRN' ELSE '.BAK' END
/************************
FULL BACKUP
************************/
IF UPPER(@optype) = 'DB'
BEGIN
SET @execmd = N'BACKUP DATABASE [' + @database + '] TO DISK = ''' + @backupfilename + '''' +
CASE WHEN @backupwith IS NULL THEN '' ELSE (' WITH ' + @backupwith) END
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH -- backup failure
SELECT @err = @@ERROR,@ret = @err
SELECT @errormsg = 'Full backup of database ' + @database + ' failed with error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
SET @output = SPACE(4) + 'Refer to SQL Error Log and NT Event Log for further details'
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
CLOSE dcur
DEALLOCATE dcur
GOTO CLEANUP
END CATCH
-- backup success
SET @finish = GETDATE()
SET @output = SPACE(4) + 'Database backed up to ' + @backupfilename
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
--calculate backup runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'Full database backup completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
END
/************************
DIFFERENTIAL BACKUP
************************/
IF UPPER(@optype) = 'DIFF'
BEGIN
SET @execmd = N'BACKUP DATABASE [' + @database + '] TO DISK = ''' +
@backupfilename + ''' WITH DIFFERENTIAL' +
CASE WHEN @backupwith IS NULL THEN '' ELSE (' , ' + @backupwith) END
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH -- backup failure
SELECT @err = @@ERROR,@ret = @err
SELECT @errormsg = 'Differential backup of database ' + @database + ' failed with error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
SET @output = SPACE(4) + 'Refer to SQL Error Log and NT Event Log for further details'
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
CLOSE dcur
DEALLOCATE dcur
GOTO CLEANUP
END CATCH
-- backup success
SET @finish = GETDATE()
SET @output = SPACE(4) + 'Database backed up to ' + @backupfilename
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
--calculate backup runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'Differential database backup completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
END
/************************
LOG BACKUP
************************/
IF UPPER(@optype) = 'LOG'
BEGIN
SET @execmd = N'BACKUP LOG [' + @database + '] TO DISK = ''' + @backupfilename + '''' +
CASE WHEN @backupwith IS NULL THEN '' ELSE (' WITH ' + @backupwith) END
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH -- backup failure
SELECT @err = @@ERROR,@ret = @err
SELECT @errormsg = 'Log backup of database ' + @database + ' failed with error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
SET @output = SPACE(4) + 'Refer to SQL Error Log and NT Event Log for further details'
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
CLOSE dcur
DEALLOCATE dcur
GOTO CLEANUP
END CATCH
-- backup success
SET @finish = GETDATE()
SET @output = SPACE(4) + 'Log backed up to ' + @backupfilename
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
--calculate backup runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'Log backup completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
END
SET @stage = (@stage + 1)
FETCH NEXT FROM dcur into @database
END
CLOSE dcur
DEALLOCATE dcur
/************************
VERIFY BACKUP
************************/
IF @verify = 1
BEGIN
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT dbname FROM #databases ORDER BY dbname
OPEN dcur
FETCH NEXT FROM dcur into @database
WHILE @@FETCH_STATUS=0
BEGIN
SELECT @backupfilename = @backupfldrorig + @database + '\' + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_'
END + @jobstart +
CASE WHEN UPPER(@optype) = 'LOG' THEN '.TRN' ELSE '.BAK' END
SET @start = GETDATE()
-- write to text report
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
SET @output = '[' + CAST(@stage as varchar(10)) + '] Database ' + @database + ': Verify Backup File...'
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
SET @execmd = N'RESTORE VERIFYONLY FROM DISK = ''' + @backupfilename + '''' +
CASE WHEN @verifywith IS NULL THEN '' ELSE (' WITH ' + @verifywith) END
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH
SELECT @err = @@ERROR,@ret = @err
SET @errormsg = 'Verify of ' + @backupfilename + ' failed with Native Error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
CLOSE dcur
DEALLOCATE dcur
GOTO CLEANUP
END CATCH
-- verify success
SET @finish = GETDATE()
SET @output = SPACE(4) + 'Backup file ' + @backupfilename + ' verified'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
--calculate verify runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'Verify backup completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
SET @stage = (@stage + 1)
FETCH NEXT FROM dcur into @database
END
CLOSE dcur
DEALLOCATE dcur
END
/************************
DELETE OLD FILES
************************/
-- we have already deleted files so skip to the end
IF @delfirst = 1 GOTO CLEANUP
-- this label is so that we can delete files prior to backup if @delfirst = 1
DELFIRST:
/************************
DELETE OLD BACKUPS
************************/
SET @datepart = CASE
WHEN UPPER(@dbretainunit) = 'MINUTES' THEN N'mi'
WHEN UPPER(@dbretainunit) = 'HOURS' THEN N'hh'
WHEN UPPER(@dbretainunit) = 'DAYS' THEN N'dd'
WHEN UPPER(@dbretainunit) = 'WEEKS' THEN N'ww'
WHEN UPPER(@dbretainunit) = 'MONTHS' THEN N'yy'
END
IF @debug = 1 PRINT '@datepart for backups = ' + @datepart
-- write to text report
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
SET @output = '[' + CAST(@stage as varchar(10)) + '] Delete Old Backup Files...'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT dbname FROM #databases ORDER BY dbname
OPEN dcur
FETCH NEXT FROM dcur into @database
WHILE @@FETCH_STATUS=0
BEGIN
SET @backupfldr = + @backupfldrorig + @database + '\'
SELECT @backupfilename = @backupfldr + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_'
END + @jobstart +
CASE WHEN UPPER(@optype) = 'LOG' THEN '.TRN' ELSE '.BAK' END
-- load files in @backupfldr
IF @checkattrib = 1
SET @cmd = 'dir /B /A-D-A /OD "' + @backupfldr + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_' END + '*' +
CASE WHEN UPPER(@optype) = 'LOG' THEN '.TRN' ELSE '.BAK' END + '"'
ELSE
SET @cmd = 'dir /B /A-D /OD "' + @backupfldr + REPLACE(@database,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_' END + '*' +
CASE WHEN UPPER(@optype) = 'LOG' THEN '.TRN' ELSE '.BAK' END + '"'
IF @debug = 1 PRINT '@cmd = ' + @cmd
DELETE #files
INSERT #files EXEC master.dbo.xp_cmdshell @cmd
DELETE #files WHERE filename IS NULL or filename = ISNULL(REPLACE(@backupfilename,@backupfldr,''),'nothing')
IF @debug = 1 SELECT * FROM #files
-- get count of files that match pattern
SELECT @filecount = COUNT(*) from #files
WHERE PATINDEX('%File Not Found%',filename) = 0
AND PATINDEX('%The system cannot find%',filename) = 0
-- remove files that don't meet retention criteria if there are any files that match pattern
IF UPPER(@dbretainunit) <> 'COPIES'
BEGIN
IF @filecount>0
BEGIN
SET @delcmd = N'DELETE #files WHERE DATEADD(' + @datepart + N',' + CAST(@dbretainval as nvarchar(10)) + N',' +
'CONVERT(datetime,(SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),7,2) +''/''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),5,2) +''/''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),1,4) +'' ''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),9,2) +'':''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),11,2)),103)) > ''' + CAST(@jobdt as nvarchar(25)) + N''''
IF @debug = 1 PRINT '@delcmd=' + @delcmd
EXEC master.dbo.sp_executesql @delcmd
SELECT @delcount = COUNT(*) from #files
END
ELSE
BEGIN
SELECT @delcount = 0
END
END
ELSE -- number of copies not date based (include current backup that's not in #files)
BEGIN
IF @filecount>0
BEGIN
IF @dbretainval>1
BEGIN
SET @delcmd = N'DELETE #files WHERE filename IN(SELECT TOP ' + CAST((@dbretainval-1) as nvarchar(10)) +
N' filename FROM #files ORDER BY substring(filename,((len(filename)+2)-charindex(''_'',reverse(filename))),12) DESC)'
IF @debug = 1 PRINT '@delcmd=' + @delcmd
EXEC master.dbo.sp_executesql @delcmd
END
SELECT @delcount = COUNT(*) from #files
END
ELSE
BEGIN
SELECT @delcount = 0
END
END
IF @debug = 1 PRINT '@delcount = ' + STR(@delcount)
-- if there are any matching files
IF @filecount>0
BEGIN
-- are there any files that need deleting
IF @delcount>0
BEGIN
DECLARE FCUR CURSOR FORWARD_ONLY FOR
SELECT * FROM #files
OPEN FCUR
FETCH NEXT FROM FCUR INTO @delfilename
WHILE @@FETCH_STATUS=0
BEGIN
SET @cmd = 'DEL /Q "' + @backupfldr + @delfilename + '"'
EXEC @cmdret = master.dbo.xp_cmdshell @cmd,no_output
-- log failure to delete but don't abort procedure
IF @cmdret<>0
BEGIN
SET @output = SPACE(4) + '*** Error: Failed to delete file ' + @backupfldr + @delfilename + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
SELECT @delbkflag = 1 , @cmdret = 0, @delcount = (@delcount-1)
END
ELSE
BEGIN
SET @output = SPACE(4) + 'Deleted file ' + @backupfldr + @delfilename
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
END
FETCH NEXT FROM FCUR INTO @delfilename
END
CLOSE FCUR
DEALLOCATE FCUR
END
END
-- write to text report
SET @output = SPACE(4) + CAST(@delcount as varchar(10)) + ' file(s) deleted.'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
FETCH NEXT FROM dcur into @database
END
CLOSE dcur
DEALLOCATE dcur
-- clear temporary table and variables
DELETE #files
SET @cmd = ''
SET @delcmd = ''
SET @delfilename = ''
SET @datepart = ''
SET @filecount = 0
SET @delcount = 0
SET @cmdret = 0
SET @stage = @stage + 1
/************************
DELETE OLD REPORTS
************************/
DELREPORTS:
IF @rptretainunit IS NOT NULL
BEGIN
SET @datepart = CASE
WHEN UPPER(@rptretainunit) = 'MINUTES' THEN N'mi'
WHEN UPPER(@rptretainunit) = 'HOURS' THEN N'hh'
WHEN UPPER(@rptretainunit) = 'DAYS' THEN N'dd'
WHEN UPPER(@rptretainunit) = 'WEEKS' THEN N'ww'
WHEN UPPER(@rptretainunit) = 'MONTHS' THEN N'yy'
END
IF @debug = 1 PRINT '@datepart for reports = ' + @datepart
-- write to text report
SET @output = '[' + CAST(@stage as varchar(10)) + '] Delete Old Report Files...'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
-- load files in @reportfldr
SET @cmd = 'dir /B /A-D /OD "' + @reportfldr + REPLACE(@databaseorig,' ','_') +
CASE WHEN UPPER(@optype) = 'DB' THEN '_FullDBBackup_report_'
WHEN UPPER(@optype) = 'DIFF' THEN '_DiffDBBackup_report_'
WHEN UPPER(@optype) = 'REINDEX' THEN '_Reindex_report_'
WHEN UPPER(@optype) = 'CHECKDB' THEN '_CheckDB_report_'
WHEN UPPER(@optype) = 'REORG' THEN '_Reorg_report_'
WHEN UPPER(@optype) = 'LOG' THEN '_LogBackup_report_' END + '*.txt"'
IF @debug = 1 PRINT '@cmd = ' + @cmd
INSERT #files EXEC master.dbo.xp_cmdshell @cmd
DELETE #files WHERE filename IS NULL
IF @debug = 1 SELECT * FROM #files
-- get count of files that match pattern
SELECT @filecount = COUNT(*) from #files
WHERE PATINDEX('%File Not Found%',filename) = 0
AND PATINDEX('%The system cannot find%',filename) = 0
-- remove files that don't meet retention criteria if there are any files that match pattern
IF UPPER(@rptretainunit) <> 'COPIES'
BEGIN
IF @filecount>0
BEGIN
SET @delcmd = N'DELETE #files WHERE DATEADD(' + @datepart + N',' + CAST(@rptretainval as nvarchar(10)) + N',' +
'CONVERT(datetime,(SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),7,2) +''/''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),5,2) +''/''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),1,4) +'' ''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),9,2) +'':''
+ SUBSTRING(SUBSTRING(filename,((LEN(filename)-CHARINDEX(''_'',REVERSE(filename)))+2),12),11,2)),103)) > ''' + CAST(@jobdt as nvarchar(25)) + N''''
IF @debug = 1 PRINT '@delcmd=' + @delcmd
EXEC master.dbo.sp_executesql @delcmd
SELECT @delcount = COUNT(*) from #files
END
ELSE
BEGIN
SELECT @delcount = 0
END
END
ELSE -- number of copies not date based
BEGIN
IF @filecount>0
BEGIN
SET @delcmd = N'DELETE #files WHERE filename IN(SELECT TOP ' + CAST(@rptretainval as nvarchar(10)) +
N' filename FROM #files ORDER BY substring(filename,((len(filename)+2)-charindex(''_'',reverse(filename))),12) DESC)'
IF @debug = 1 PRINT '@delcmd=' + @delcmd
EXEC master.dbo.sp_executesql @delcmd
SELECT @delcount = COUNT(*) from #files
END
ELSE
BEGIN
SELECT @delcount = 0
END
END
IF @debug = 1 PRINT STR(@delcount)
-- if there are any matching files
IF @filecount>0
BEGIN
-- are there any files that need deleting
IF @delcount>0
BEGIN
DECLARE FCUR CURSOR FORWARD_ONLY FOR
SELECT * FROM #files
OPEN FCUR
FETCH NEXT FROM FCUR INTO @delfilename
WHILE @@FETCH_STATUS=0
BEGIN
SET @cmd = 'DEL /Q "' + @reportfldr + @delfilename + '"'
EXEC @cmdret = master.dbo.xp_cmdshell @cmd,no_output
-- log failure to delete but don't abort procedure
IF @cmdret<>0
BEGIN
SET @output = SPACE(4) + '*** Error: Failed to delete file ' + @reportfldr + @delfilename + ' ***'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
SELECT @delrptflag = 1 , @cmdret = 0, @delcount = (@delcount-1)
END
BEGIN
SET @output = SPACE(4) + 'Deleted file ' + @reportfldr + @delfilename
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
END
FETCH NEXT FROM FCUR INTO @delfilename
END
CLOSE FCUR
DEALLOCATE FCUR
END
END
-- write to text report
SET @output = SPACE(4) + CAST(@delcount as varchar(10)) + ' file(s) deleted.'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
-- update stage
SET @stage = @stage + 1
END
-- if we got here due to @delfirst = 1 go back and do the backups
IF @delfirst = 1
GOTO DOBACKUP
ELSE
GOTO CLEANUP
/************************
CHECKDB
************************/
CHECK_DB:
IF @optype = 'CHECKDB'
BEGIN
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT dbname FROM #databases ORDER BY dbname
OPEN dcur
FETCH NEXT FROM dcur into @database
WHILE @@FETCH_STATUS=0
BEGIN
-- write to text report
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
SET @output = '[' + CAST(@stage as varchar(10)) + '] Database ' + @database + ': Check Data and Index Linkage...'
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
-- set backup start time
SET @start = GETDATE()
SET @execmd = N'DBCC CHECKDB([' + @database + N']) WITH NO_INFOMSGS'
IF @debug = 1 PRINT 'DBCC Command : ' + @execmd
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH
SELECT @err = @@ERROR,@ret = @err
SET @errormsg = 'CheckDB of ' + @database + ' failed with Native Error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
CLOSE dcur
DEALLOCATE dcur
GOTO CLEANUP
END CATCH
SET @finish = GETDATE()
--calculate checkdb runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'CheckDB completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
SET @stage = (@stage + 1)
FETCH NEXT FROM dcur into @database
END
CLOSE dcur
DEALLOCATE dcur
-- delete reports
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
GOTO DELREPORTS
END
/************************
REINDEX/REORG
************************/
REINDEX:
IF @optype in ('REINDEX','REORG')
BEGIN
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT dbname FROM #databases ORDER BY dbname
OPEN dcur
FETCH NEXT FROM dcur into @database
WHILE @@FETCH_STATUS=0
BEGIN
-- write to text report
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
IF @optype = 'REINDEX'
SET @output = '[' + CAST(@stage as varchar(10)) + '] Database ' + @database + ': Index Rebuild (using original fillfactor)...'
ELSE
SET @output = '[' + CAST(@stage as varchar(10)) + '] Database ' + @database + ': Index Reorganize...'
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
-- set start time
SET @start = GETDATE()
-- all user tables
CREATE TABLE #tables(tablename sysname)
EXEC(N'INSERT #tables(tablename) SELECT DISTINCT(''['' + s.[name] + ''].['' + t.[name] + '']'') FROM [' + @database + N'].sys.tables t ' +
N'JOIN [' + @database + N'].sys.schemas s on t.schema_id=s.schema_id ' +
N'JOIN [' + @database + N'].sys.indexes i on t.object_id=i.object_id ' +
N'WHERE t.is_ms_shipped = 0 AND i.type>0')
DECLARE tcur CURSOR LOCAL FAST_FORWARD
FOR SELECT tablename FROM #tables ORDER BY tablename
OPEN tcur
FETCH NEXT FROM tcur INTO @table
WHILE @@FETCH_STATUS = 0
BEGIN
IF @report = 1
BEGIN
IF @optype = 'REINDEX'
SET @output = SPACE(4) + N'Rebuilding indexes for table ' + @table
ELSE
SET @output = SPACE(4) + N'Reorganizing indexes for table ' + @table
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
IF @optype = 'REINDEX'
SET @execmd = N'ALTER INDEX ALL ON [' + @database + N'].' + @table + N' REBUILD'
ELSE
SET @execmd = N'ALTER INDEX ALL ON [' + @database + N'].' + @table + N' REORGANIZE'
IF @debug = 1 PRINT 'Reindex Command : ' + @execmd
BEGIN TRY
EXEC(@execmd)
END TRY
BEGIN CATCH
SELECT @err = @@ERROR,@ret = @err
SET @errormsg = 'Rebuild of indexes on [' + @database + N'].' + @table + ' failed with Native Error : ' + CAST(@err as varchar(10))
SET @output = SPACE(4) + '*** ' + @errormsg + ' ***'
PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
END
CLOSE tcur
DEALLOCATE tcur
DROP TABLE #tables
GOTO CLEANUP
END CATCH
FETCH NEXT FROM tcur INTO @table
END
CLOSE tcur
DEALLOCATE tcur
SET @finish = GETDATE()
--calculate runtime
SET @runtime = (@finish - @start)
SET @output = SPACE(4) + 'Index maintenance completed in '
+ CAST(DATEPART(hh,@runtime) as varchar(2)) + ' hour(s) '
+ CAST(DATEPART(mi,@runtime) as varchar(2)) + ' min(s) '
+ CAST(DATEPART(ss,@runtime) as varchar(2)) + ' second(s)'
IF @debug = 1 PRINT @output
IF @report = 1
BEGIN
EXEC sp_OAMethod @file,'WriteLine',NULL,''
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
END
DROP TABLE #tables
SET @stage = (@stage + 1)
FETCH NEXT FROM dcur into @database
END
CLOSE dcur
DEALLOCATE dcur
-- delete reports
GOTO DELREPORTS
END
/************************
CLEAN UP
************************/
CLEANUP:
DROP TABLE #files
DROP TABLE #exists
DROP TABLE #databases
-- if we encountered errors deleting old backups return failure
IF @delbkflag<>0
BEGIN
SET @errormsg = 'Expressmaint encountered errors deleting old backup files' + CHAR(13)
+ CASE WHEN @report = 1 THEN ('Please see ' + @reportfilename + CHAR(13) + ' for further details') ELSE '' END
RAISERROR(@errormsg,16,1)
SET @ret = 1
END
-- if we encountered errors deleting old reports return failure
IF (@delrptflag<>0 AND @delbkflag = 0)
BEGIN
SET @errormsg = 'Expressmaint encountered errors deleting old report files' + CHAR(13)
+ CASE WHEN @report = 1 THEN ('Please see ' + @reportfilename + CHAR(13) + ' for further details') ELSE '' END
RAISERROR(@errormsg,16,1)
SET @ret = 1
END
-- if we created a file make sure we write trailer and destroy object
IF @filecrt = 1
BEGIN
-- write final part of report
EXEC sp_OAMethod @file,'WriteLine',NULL,''
SET @output = 'Expressmaint processing finished at ' + CONVERT(varchar(25),GETDATE(),100)
+ ' (Return Code : ' + CAST(@ret as varchar(10)) + ')'
IF @debug = 1 PRINT @output
EXEC sp_OAMethod @file,'WriteLine',NULL,@output
EXEC sp_OAMethod @file,'WriteLine',NULL,''
-- destroy file object
EXEC @hr=sp_OADestroy @file
IF @hr <> 0 EXEC sp_OAGetErrorInfo @file
END
IF @report = 1
BEGIN
EXEC @hr=sp_OADestroy @fso
IF @hr <> 0 EXEC sp_OAGetErrorInfo @fso
END
RETURN @ret
GO
|
By Trent L. Taylor - 3/20/2008
On some of our development servers we take an approach more similar to Keith since this is in house. In this case we have a sproc that cycles through all of the databases and backs them up to a network location:Stored Sproc Code CREATE PROCEDURE [dbo].[BackupDatabases] AS BEGIN -- Establish locals DECLARE @dbid INT; DECLARE @dbname NVARCHAR(128); DECLARE @backupPath NVARCHAR(500); -- Get the first dbid
SELECT @dbid = MIN(dbid) FROM sys.sysdatabases; -- Cycle through the databases
WHILE @dbid IS NOT NULL
BEGIN
-- Get the database name
SELECT @dbname = [name] FROM sys.sysdatabases WHERE dbid = @dbid; -- Only backup the database if it is not tempdb
IF NOT @dbname = 'tempdb'
BEGIN
-- Create the backup path
SELECT @backupPath = ('C:\SQLBackups\M4SQL_' + @dbname + '.bak'); -- Backup the database
BACKUP DATABASE @dbname
TO DISK = @backupPath WITH INIT; -- Backup the log file
BACKUP LOG @dbname WITH NO_LOG -- Shrink the DB to truncate the logfile
DBCC SHRINKDATABASE (@dbname, 10)
END -- Get the next database row
SELECT @dbid = MIN(dbid) FROM sys.sysdatabases WHERE dbid > @dbid;
END
END However, this doesn't really work in the field. As Greg mentioned, we use SMO. I have posted a sample of how to do this here: http://forum.strataframe.net/FindPost15065.aspx .
|
By Geoff Hirst - 4/15/2008
Hi Trent,your example for backup and restore is great. Do you have any pointers for actually integrating it into a client that isn't running on the server machine? I keep getting tripped up by this. Having the backup on the server is fine, I would just like the client to be able to run it rather than it be a server invoked task. thanks Geoff.
|
By Trent L. Taylor - 4/15/2008
your example for backup and restore is great. Do you have any pointers for actually integrating it into a client that isn't running on the server machine? Either create a service that runs on your clients machine or create an external EXE that you run as a scheduled task. The latter is a litte more simple in regards to installations, but the service would be easier in regards to ensuring that it ran regardless of which user is logged into the machine or even logged in at all. But both ways would get the job done. Also, you can change the logic to run from a client. You would then just have the backup update on the local disk of the server (the only way you can do this) and then copy the files up to the network. You could just provide a preference in your app that specified the network path and the UNC path or something to the server to get to the files on disk.
|
By Greg McGuffey - 4/15/2008
You would just make a sproc to backup your database(s) (on the server of course) then run it in some BO using the ExecuteNonQuery() method (in the client). You could simply create a class that inherits BusinessLayer, than add the method:
Public Class AdminBO
Inherits BusinessLayer
Public Sub BackDb()
'-- Just use a SQL Command object to do the work
Using cmd As New SqlCommand()
cmd.CommandType = StoredProcedure
cmd.CommandText = "BackupDatabase"
Me.ExecuteNonQuery(cmd)
End Using
End Sub
End Class
|
|