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script to set all user database to simple recovery model


script to set all user database to simple recovery model

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ravishankar.yedoti
ravishankar.yedoti
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get me a script to set all user database to simple recovery model

i tried the below......... it is changing for system databases also

exec sp_msforeachdb 'alter database ? set recovery simple'
Lowell
Lowell
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just a day or so ago someone asked for the same thing;
see this topic for the discussion and a working solution:

http://www.sqlservercentral.com/Forums/FindPost1162705.aspx

Lowell
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Todd Erickson
Todd Erickson
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I really liked that script, but, being an efficiency fanatic, I thought I would improve it just a little. Instead of building the SQL statement and then using replace to alter it, my version just builds the correct sql statement the first time. Here it is:

USE MASTER
declare
@isql varchar(2000),
@dbname varchar(64),
@logfile varchar(128)

declare c1 cursor for
SELECT d.name, mf.name as logfile--, physical_name AS current_file_location, size
FROM sys.master_files mf
inner join sys.databases d
on mf.database_id = d.database_id
where recovery_model_desc <> 'SIMPLE'
and d.name not in ('master','model','msdb','tempdb')
and mf.type_desc = 'LOG'
open c1
fetch next from c1 into @dbname, @logfile
While @@fetch_status <> -1
begin
select @isql = 'ALTER DATABASE ' + @dbname + ' SET RECOVERY SIMPLE'
print @isql
--exec(@isql)
select @isql='USE ' + @dbname + ' checkpoint'
print @isql
--exec(@isql)
select @isql='USE ' + @dbname + ' DBCC SHRINKFILE (' + @logfile + ', 1)'
print @isql
--exec(@isql)

fetch next from c1 into @dbname, @logfile
end
close c1
deallocate c1



Jeff Moden
Jeff Moden
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Todd Erickson (1/8/2014)
I really liked that script, but, being an efficiency fanatic, I thought I would improve it just a little. Instead of building the SQL statement and then using replace to alter it, my version just builds the correct sql statement the first time. Here it is:

USE MASTER
declare
@isql varchar(2000),
@dbname varchar(64),
@logfile varchar(128)

declare c1 cursor for
SELECT d.name, mf.name as logfile--, physical_name AS current_file_location, size
FROM sys.master_files mf
inner join sys.databases d
on mf.database_id = d.database_id
where recovery_model_desc <> 'SIMPLE'
and d.name not in ('master','model','msdb','tempdb')
and mf.type_desc = 'LOG'
open c1
fetch next from c1 into @dbname, @logfile
While @@fetch_status <> -1
begin
select @isql = 'ALTER DATABASE ' + @dbname + ' SET RECOVERY SIMPLE'
print @isql
--exec(@isql)
select @isql='USE ' + @dbname + ' checkpoint'
print @isql
--exec(@isql)
select @isql='USE ' + @dbname + ' DBCC SHRINKFILE (' + @logfile + ', 1)'
print @isql
--exec(@isql)

fetch next from c1 into @dbname, @logfile
end
close c1
deallocate c1




I'd have to test it but I don't believe that all those concatenations will necessarily be more efficient.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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george sibbald
george sibbald
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if you want to keep it simple and just change recovery model for all user databases run this, copy results to another window and run

select 'alter database ['+name+'] set recovery simple' from master.sys.databases where database_id > 4 and state_desc = 'online'



avoid ms_foreachdb, use cursors (there i said it on a thread with Jeff on it). ms_foreachdb creates a cursor in the background anyway, its unsupported, difficult soon as you want to skip some databases, and has been shown to skip databases in error.

---------------------------------------------------------------------
Jeff Moden
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george sibbald (1/8/2014)
if you want to keep it simple and just change recovery model for all user databases run this, copy results to another window and run

select 'alter database ['+name+'] set recovery simple' from master.sys.databases where database_id > 4 and state_desc = 'online'



avoid ms_foreachdb, use cursors (there i said it on a thread with Jeff on it). ms_foreachdb creates a cursor in the background anyway, its unsupported, difficult soon as you want to skip some databases, and has been shown to skip databases in error.


Just to be sure, I don't object to cursors for this type of thing (even if they are unnecessarily complicated for such a thing). ;-)

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
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george sibbald
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I know, I just couldn't resist it ! ;-)

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marina-r
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Thank you! Very useful
Jeff Moden
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george sibbald (1/8/2014)
I know, I just couldn't resist it ! ;-)



BWAAA-HAAAA! True sign of being retired. :-) Do everything as simple as possible. I love it. Thanks, George.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
phoenixrising1599
phoenixrising1599
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We do not want to generate a line for databases that are already in simple recovery mode. Add an 'OR' statement if you use bulk_logged
select 'alter database ['+name+'] set recovery simple' from master.sys.databases where database_id > 4 and state_desc = 'online' AND recovery_model_desc = 'full;'

I use your script all the time and have to add that AND recovery_model_desc = 'Full;' part so I thought others might like the addition.

'nix
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