SQL 2012 :: Shrinking Database For Dev Environment?
Nov 26, 2014
I've read lots about why you shouldn't normally shrink databases in posts such as this:
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But we have a situation where we are required to copy the live db to various non production environments for testing. Part of this process involves truncating a number of tables with masses of blob data. So we're freeing up quite a lot of space. The question is how to reclaim this? The database is peculiar in that it's got no clustered indexes so I can't rebuild indexes on another filegroup with drop to move and rebuild.
I've tried dbcc shrinkfile specifying a size. I've tried to shrink the file in increments. The problem is I'm just not getting much space released. I get maybe 2-3%. I suspect this is because we're dealing with heaps with some tables that have sparsely populated blob / image data.
Is there an alternative to shrinking? Should I recreate all the db objects in a new database? It doesn't matter if the process takes a while or if it has to be done manually.
I have finished a change request from our client. I need to update clients' database with the one in developments.Here is the changes i made to database:Added/Changed some tablesAdded/Changed some stored proceduresAdded data to some dictionary tableThe data in clients' current database MUST be kept. So how can I merge the changed information to clients' database?
Disaster Recovery Options based on the following criteria.
--Currently running SQL 2012 standard edition --We have 18000 databases (same schema across databases)- majority of databases are less than 2gb-- across 64 instances approximately --Recovery needs to happen within 1 hour (Not sure that this is realistic -- We are building a new data center and building dr from the ground up.
What I have looked into is:
1. Transactional Replication: Too Much Data Not viable 2. AlwaysOn Availability Groups (Need enterprise) Again too many databases and would have to upgrade all instances 3. Log Shipping is a viable option and the only one I can come up with that would work right now. Might be a management nightmare but with this many databases probably all options with be a nightmare.
We are currently running sharepoint with SQL 2012 database. The consultant who configured Sharepoint for us is advising/insisting that we setup a daily maintenance job to shrink the data and log files. He is insisting that the lack of maintenance job to shrink the files daily is the reason we are running out of disk space.
We are using Sql server 2012. One of our production database has hight no of vlfs. We are planning to shrink the logfile to reduce the no of VLFs but the database is configured for logshipping.
What is the effect of logshipping when you shrink the logfile?
We are working in a Merge replication environment where we have SQL Server 2005, 11 publications and 2 subscribers.We used to get lot of incidents from the Application owner for blockings, recently we faced a situation where the lead blocker is in sleeping state and the session was used by the merge agent.Checked the query that the session was running, it was sys.sp_MSenumgenerations90;1.
We have 4 Servers which have SQL SERVER 2012 and "AlwaysOn" have been enabled on all 4 servers:
Server1,Server2,Server3,Server4
Server1 is the Primary node and thr rest are secondaries. There is a Sync relation between Server1 and Server2 and also there is aSync relation between Server1 and Server3 & Server4.
Is it possible to setup log shipping from Server2 & Server3(secondaries) to two new servers?
I am try to put together options in regard to creating a test environment for our Dynamics NAV system. The environment will be mainly used to test new releases / changes ahead of applying them to production.The 2 options I am considering are…
1.Create a second Test instance on our Production SQL Server to host a test database
2.Purchase a set of SQL developer licences and having a totally separate server for our test environment.
My preference would be option 2. However I need to build a convincing case that this is the best way forward. I wondered if I could tap into the thoughts of the SQL Central community and see how other approach this.
I do have the following Extended Event session on my Dev box;
CREATE EVENT SESSION [sp_showplan] ON SERVER ADD EVENT sqlserver.query_post_execution_showplan(SET collect_database_name=(1) ACTION(sqlserver.plan_handle) WHERE ([package0].[equal_uint64]([object_type],(8272)) AND [sqlserver].[equal_i_sql_unicode_string]([object_name],N'MyStoreProcedure'))) ADD TARGET package0.event_file(SET filename=N'E:DBA_AuditSP_Exec.xel',metadatafile=N'E:DBA_AuditSP_Exec.xem') WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=OFF) GO
The idea is being able to capture the execution plan when the program invokes the store procedure, regardless of the database.
This works on my Dev box. When I manually trigger "MyStoreProcedure" from database A , the event is saved. The same thing happens when I do that from database B. Ok ... so far, so good.
So I went to the live production environment and setup my Extended Events session. But it's saving nothing. I was able to check that the store procedure was executed on several databases but my extended events session never grabbed the plan.
What could be the reason for this? Memory starvation maybe? Is there something I am doing wrong?
Hi all,I've deleted a lot of albums but the size of personal.mdf isn't shrinking - how do i go about acheiving this? I've tried to shrink it in sql management express but the file is read only.. please help! thanks
I have a 1.2 gig db which has truncate checkpoint set and over 850 meg of free space. WHen I shrink it through either DBCC or EM I see no change. ANy ideas? Thanks
i havae a database size of 1000mb with used as 507.50 and unused as 492.50. i tried with commands like dbcc shrink file and dbcc shrink database but i could not get the result as what i need. I need to shrink in such a way that it should have 25% of the used space as free space. could any one help
Hi guys.I have a huge database file. When I run sp_spaceused this are theresults:db_size 1337,31 Mbunallocated 14,62 Mbreserved 1088456 Kbdata 258992 Kbindex_size 6224 Kbunused 823240 KbNow, when I run dbcc shrinkfile(database_name, 50) or whatever value ofpercent, it says there is not enough free space in db.Please advice how to shrink the size of that file and why is it so big?Thanks in advanceZvonko
Setting up Transaction Replication in test environment. I am willing to bet that most of you take a production backup (if so, how, and using what?), restoring the database to your test environment, then running a snapshot to your subscriber and away you go.
But perhaps you take a backup of your publisher and subscriber, if so, how do you know there are no inconsistences because there were transactions sitting on the distributor?
What do you do if you have additional indexes on the subscriber for reporting, that are not on the publisher?
Here at work we are having issues with getting consistent databases set up with T Rep, missing rows, duplicate keys at subscriber etc. How to avoid these issues.
I am working on a client product that shrinks the database in MS SqlServer. After shrinking the database files, it does not send any email notification to the users.
My question is: Is there any way in SqlServer to sense that the database has been shrunk and send a notification to the users (may be through an Alert or a Job or something). Please let me know the steps to do that.
When I am trying to shrink a database, I got the following error.
Executed as user: NT AUTHORITYSYSTEM. ...he PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491894). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491893). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491892). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491891). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491890). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:491889). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8909) Table error: Object ID 0, index ID 0, page ID (1:490615). The PageId in the page header = (0:0). [SQLSTATE 42000] (Error 8...
I have a database file LEAR_Index(yes, it hold index data) from a havehave recently removed a bunch of data.It is about 120 Gb, 100Gb of which is not used. I wan´t to shrink thefile to lean 30-40Gb.I´ve been trying this:dbcc shrinkfile('LEAR_Index',40000)But to no apparent avail; the file did not shrink.I´ve tried using enterprise manager for this but it consistenlycrashes when performing this operation.#Any thoughs, idear as to what i might be doing wrong?
Hi all.I'm having trouble shrinking a database. In short, using the SQL QueryAnalyzer,I enter the following commands:DBCC SHRINKDATABASE (database, 80)GOThe command returns the expected 'DBCC execution completed.' response, butthe databaseremains the same size when I run 'sp_helpdb database'. Am I missingsomething?Thanks in advance,Jaeger
I have deployed a project with multiple packages to SSIS 2012 db. I am able to configure the project parameters fine. But, I am not able to replace the package variable values with the 'Environment' variables.
Any fix for the seemingly random sort order of the variables in the dropdown list when configuring parameters and connection managers in the SSISDB catalog?
I imported all of our connection strings into an environment (about 200 of them). They were inserted in alpha order and the ID values within the internal.environment_variables table shows them in order as well, by ID and by name. When I run profiler and capture the command that retrieves them and run it in ssms they are in order but in the dropdown they seem random.
There are no values within any of the tables that accounts for the order they are in.
If a package has 5 connections you need to go through the unsorted list 5 times to find them.
Sometimes you get lucky and they are in the first 20 or so.
I know I can write a script, just wondering if there is a fix for the sorting.
Can anyone help, I have a master database on my server which has an extremely large log file size. I need to shrink this down and so I have tried using dbcc shrinkfile (master, 50, truncateonly) and dbcc shrinkdatabase although it does not seem to reduce in size
We have a database in production which has free space about 200 GB in Data files and Index files, I want to shrink Data files and Index files.If I do incremental shrink in daytime does it hurt the performance of the database or please advise what is the best practice.
Hello,I am trying to clean up a database I inherited.I have an 80GB SQL 2000 database with 20 datafiles each 4096 in size. Ihave been able to remove unneeded data and am now trying to clean up.If I do a Shrink on each datafile would able to recover on average 2gbout of 4g, however I would prefer to have 10 full datafiles and 10empty. (or better yet 5 full 8GB datafiles and 15 empty)Can someone point me in the right direction on how to move the dataaround so that dont have 20 partially filled datafiles?I have noticed that I can shrink a single file and use the "empty thefile option (and move data to other files in the group)." option. Ihave already done this to the last 2 datafiles as a test but not surehow to do this on a large scale. I have also set the 1st 10 datafilesto be able to grow to 8 GB.For lack of a better way to say this, Is there a way to defrag orreorganize the data ables so everything "moves to the front".BTW, I have already run a maintenance plan to reorganize the data andindex pages.
I have dataware house database and it's size is 2 TB with simple recovery model.I want to reduce it's size because everyday before loading table gets truncate.Is it best practice to shrink the datafiles?database having 5 data files and one log file.what is the best way to reduce?
I have SSIS 2012 Enterprise, using catalog deployment and have more that 50 environment variables for connection to databases across my enterprise.
The problem when i go to configure the packages after deployment and pick the proper env variables, that are not sorted, so i have to browse all entries in order to find the proper entry in environment variables.
