November 20, 2007 at 7:49 am
OK..here is what I need help with. I need to loop through a cursor (yuck!) and handle any exception on a RBAR basis. HEre is a simple scenario. Loop through all the database names in the cursor. Everytime you come to the northwind or pubs DB pretend it is an error. Upon this error, email someone that the error occured, and continue through the loop until all DBs have been gone through. I apologize in advance for any syntactical errors below but I am not fluent in the .NET syntax as of yet. 😉
WHILE @@FETCH_STATUS = 0
begin
begin try
IF dbname = 'northwind' or dbname = 'pubs'
raiseerror
end try
begin catch
Email DBA that db exists ( I use cdosysmail for this)
resume and go to the next record
end catch
end
--fetch teh next row..
Kindest Regards,
David
** Obstacles are those frightening things that appear when we take our eyes off the goal. **
November 20, 2007 at 8:30 am
I think this may be simpler:
while 1=1
begin
fetch ...
if @@fetch_status <> 0 break
if dbname in ('northwind','pubs')
begin
.. send email or whatever ...
continue
end
... rest of stuff in cursor loop ...
end
November 20, 2007 at 8:47 am
I agree but the rest of the scenario is this.....
I can make the code run fine in the Management studio. However, when I run it as a job, the error is caught but the job halts on the error. I am hoping that the try...catch method may resolve this. I have confirmed that the faliure is due to the calling of another proc from within the proc.
HEre is the actual code that I am doing. It pertains to automating a LiteSpeed backups. I need to do some Olympic events during this time based on a variety of conditions. I am trying to get the basic portion to work. PLease forgive the back and forth of this code becuase I am now using the 'Poke and Hope' method for a resolution. 😛
*************
alter procedure BU_DB
/*
PAss in the DB name and root folder at a later time.
*/
as
declare
@folder varchar(50),
@path Varchar(150),
@fullpath varchar(200),
@date_temp varchar(20),
@time_temp varchar(20),
@name varchar(40),
@dbname varchar(50),
@BU_FileName varchar(150),
@bu_type char(1),
@err int
/* These are used to send the message in case of a failure or success */
declare
@static_msg varchar(3000),@data_info_msg varchar(8000),@closing_msg varchar(3000), @recipients varchar(350),
@subject varchar(70),@from varchar(20)
Select @from =
Select @recipients=
Select @static_msg = 'This email is from our test environment and should be ignored by all except for the SQL DBA.'
Select @Subject='Database Backup Failure Test Message'
--Initialize the variable
Select @err=0
/*
This cursor will be used to get all the db_names in the
instance and act accordingly.
*/
declare DB_Cursor cursor
for
select name from master..sysdatabases where name not in ('tempdb', 'model')
for read only
/*
Get the current timestamp from the server.
This is what we will use to timestamp the backup.
*/
select @date_temp = convert(varchar(20), getdate(),112)
Select @time_temp = convert(varchar(20), getdate(),108)
--create the proper name for the parent folder
select @name = @date_temp + left(@time_temp,2)+ substring(@time_temp,4,2)+ right(@time_temp,2)
/*
We will create the correct path. In the naming convention of the
folder, we will wwant ot remove the seconds form the name. We want the
seconds on the file name itself.
Note: The root folder should be passed in using a variable. This will
allow us to re-use the same code on all server instances. It can remain
a constant variable if necessary.
*/
--select @path ='D:\MSSQLBU\BACKUP\'+left(@name,len(@name)-2)+'\'
--select @path ='\\dkdodo\dave\'+left(@name,len(@name)-2)+'\'
select @path ='\\Csdc01\dave\'+left(@name,8) + '\'--left(@name,len(@name)-2)+'\'
--select @path ='e:\BackupFiles\Test_Servers\'+left(@name,len(@name)-2)+'\'
/*
Here is where we will open the cursor to loop through the
database names and append them to the path.
*/
Open db_cursor
/* Get the first row */
FETCH NEXT FROM db_cursor INTO @dbname
/*
Begin looping through the DBs and create the directories as needed.
It will be the path plus the db name.
*/
WHILE @@FETCH_STATUS = 0
begin
--Print @dbname
Select @fullpath = @path+@dbname+'\'
--print @fullpath
/*
Check for the needed folder in the specified directory. This folder
should reflect the current day. We will use a table variable and an
extended stored proc to get the needed info.
*/
--Table variable to store the XP results to be queried
declare @t1 table (fileExists bit,isDirectory bit,parentDirectoryExists bit)
--Populate the table variable
insert into @t1 exec xp_fileexist @fullpath
if not exists(select * from @t1 where isDirectory >0)
begin
--Create the needed folder
declare @command varchar(1000)
set @command = 'mkdir ' + @fullpath
exec @err = master..xp_cmdshell @command , no_output
if @err != 0
begin
select @err=86 --resource not found
Select @data_info_msg = 'The network resource '
Select @data_info_msg = @data_info_msg+ ' Please verify the server is up and that the SLQ id has the needed permissions.'
goto err_handler
end
end
/*
Once we have established that the directory exists then we will need
to name and kick off the appropriate backup. The backup type will
be based on the time of day.
A fullbackup will be taken during the midnight hour.
*/
Select @bu_type = case when datepart(hh,getdate()) <=0 then 'F' else 'T' end
select @BU_FileName = @path+@dbname +'\'+@dbname + '_'+@name + '_'+@bu_type+'.safe'
--print @bu_type
print @BU_FileName
if @bu_type = 'F'
Begin
--Full backup
exec @err=master.dbo.xp_backup_database
@database = @dbname,
@GUID = N'CB58942F-140A-4D75-B7D5-4C0D80BE1E05',
@filename = @BU_FileName,
@backupname = @dbname,
@desc = N'Backup set',
@encryptionkey = N'test', @compressionlevel = 11,
@comment = '',
@with = N'SKIP', @with = N'STATS = 10'
End
else
begin
if @dbname !='master' and @dbname!='msdb'
begin
-- Transaction BU
exec @err=master.dbo.xp_backup_log
@database = @dbname,
@GUID = N'C12712A5-6952-436A-9629-B07995218E78',
@filename = @BU_FileName,
@backupname = @dbname,
@desc = N'Backup set',
@encryptionkey = N'test', @cryptlevel = 8, @compressionlevel = 11,
@comment = '', @with = N'SKIP', @with = N'STATS = 10'
end
end
/*
The below error is thrown when an atempt is made to BU the trasnaction
log without having taken a full BU first.
*/
-- if @err = 62309
-- begin
-- Select @data_info_msg = 'The database backup for failed at ' + convert(varchar(20), getdate(),120)
-- Select @data_info_msg = @data_info_msg+ 'with the following error: '
-- Select @data_info_msg = @data_info_msg+'BACKUP LOG cannot be performed because there is no current database backup.'
-- exec @err= master..sp_send_cdosysmail @from,@recipients,@subject,@data_info_msg, @bodytype='HTMLBody'
-- end
-- else if @err !=0
-- begin
-- goto err_handler
-- end
get_next:
--Get the next record
FETCH NEXT FROM db_cursor INTO @dbname
End
clean_up:
CLOSE db_cursor
DEALLOCATE db_cursor
--Bail out
return
err_handler:
if @err=86 --path not found
Begin
Select @data_info_msg = @Static_msg + char(10) + char(13)+@data_info_msg
End
-- else if @err = 62309
-- Begin
-- Select @data_info_msg = 'The database backup for failed at ' + convert(varchar(20), getdate(),120)
-- Select @data_info_msg = @data_info_msg+ 'with the following error: '
-- Select @data_info_msg = @data_info_msg+'BACKUP LOG cannot be performed because there is no current database backup.'
-- exec master..sp_send_cdosysmail @from,@recipients,@subject,@data_info_msg, @bodytype='HTMLBody'
-- Select @err = 0
-- goto get_next
-- end
else if @err=0
begin
Select @from = 'SQLDBA@cybershift.com'
Select @recipients='dpaskiet@cybershift.com'
Select @static_msg = ' '
Select @Subject=@@servername + 'Database Backups Were Successful - Test'
end
else
begin
Select @data_info_msg = 'The database backup for failed at ' + convert(varchar(20), getdate(),120)
Select @data_info_msg = @data_info_msg+ 'This is a catch all error. I dont know what happened here.'
Select @data_info_msg = @data_info_msg+'BACKUP LOG cannot be performed because there is no current database backup.'
exec @err=master..sp_send_cdosysmail @from,@recipients,@subject,@data_info_msg, @bodytype='HTMLBody'
Select @err = 0
goto get_next
end
exec @err = master..sp_send_cdosysmail @from,@recipients,@subject,@data_info_msg, @bodytype='HTMLBody'
goto clean_up
--
go
set nocount off
Kindest Regards,
David
** Obstacles are those frightening things that appear when we take our eyes off the goal. **
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