SQL Server Admin 2014 :: Can Use Different Index On Main DB And Mirror Database
Oct 31, 2015
We use SQL server always on feather on my database and we distribute statement on main database server and mirror database server for raise performance.
My police for split statement is DML (insert, update and delete) statement go to main DB and Read Data (select) statement go to mirror DB.
I want know can I use different index on main DB and mirror Database?
Because some index are used in mirror DB not used in main database.
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Jun 11, 2015
Dead lock is coming in select query in application because of index. It is identified after enabling trace in database and identified by reading deadlock xml file. After index removal, deadlock is not coming in same query. But it is affecting query's performance slightly. Is it correct way to remove index if dead lock is coming because of index?
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Apr 26, 2015
We have a database with a table that contains around 180m records. Each day a further 70k are inserted. No records are ever deleted as this table is used for archiving only.Users are required to perform SELECTs on this table constantly but due to the high number of INSERTs the indexes become very fragmented very quickly. My aim is to avoid daily rebuilds of the indexes which is what our software house is telling us we have to do.
This is the DDL for the table:
CREATE TABLE [dbo].[Inventory](
[EAN] [bigint] NOT NULL,
[Day] [smalldatetime] NOT NULL,
[State] [int] NOT NULL,
[Quantity] [int] NULL,
[StockValue] [float] NULL,
CONSTRAINT [PK_Inventory] PRIMARY KEY CLUSTERED
[code]...
There are also three clustered Indexes on this table each referencing a single column. The problem from my side is that I cannot understand why the three columns in a primary key would also be configured as non-clustered indexes.My solution would be one of the following:
1. Accept the tables are going to be fragmented and require a daily rebuild (don't like this one!)
2. Partition the table
3. Remove the non-clustered Indexes and let the clustered index for the primary key do the work.
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May 18, 2015
I would like to put a Clustered Index on a date column in a current heap, but one question/concern.This heap every month has thousands of rows deleted and even more added later. How much of an issue will this cause the Clustered Index as far as page splits? I was thinking Fill Factor of 70%.I would normally just test and still will on Dev box, but my Dev box is much smaller than production as far as power.
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Jul 1, 2015
I created columnstore index on the table with 20 columns and about 1000 000 000 rows
every day added about 5M rows
"select" queries became faster because of batch mode and table demand less disk space then before
I have also 6 similar tables with 5 000 000 000 rows and plan to move them on columnstore index
server has 128 G RAM
What pitfalls I could face if I will have so many columnstore indexes on one server?
How a could see problems in DMV?
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Jul 9, 2015
I have a situation where I need to rebuild indexes on a large DB (500G).
When I do a test run of the rebuilds in my test environment it uses 100G of space - which is fine with me.
When I do a rebuild in my High Availability environment - same DB, same script - it eats up over 600G of space and fills the volume.
What can I do without removing my DB from H/A to rebuild the indexes?
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Oct 4, 2015
I want to create a lot of index for my database for performance.
But I need find memory usage by indexes.
How to find memory usage by index in sql server?
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Jun 26, 2015
We face slow performance issue for like taking long time for same query execution after We apply index rebuild and reorganize index. But, after execution of query or procedure for 2 -3 times, performance will be faster. I have following questions
1 do we need to update stats after we rebuild an reorganize index.
2. is it will be slow for 1-2 times for every query and stored procedure execution after we rebuild and reorganize index?
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Aug 6, 2015
I need to restore a SQL 2008 db on SQL 2014 instance with out upgrading the database(changing compatibility level).
This database has full text enabled. I see one full text catalog an 2 full text indexes.
Do I need to worry about anything or can I perform a clean restore from the backup with full text import?
Do I need to rebuild the catalog in this case?
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Sep 15, 2015
I'm trying to determine how much space I would need for my data drive and log file drive to do index rebuild. I have a database which is 100gb, it is in simple recovery mode. let me know what to have a look at to determine how much space.
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Sep 13, 2014
I've been fixing some issues lately where weekly maintenance has been causing logs to grow and filling disks.
Is there any rule of thumb for allocating log space for doing reorgs and rebuilds in a worst case scenario? I'm thinking 3x the largest database size?
I've been watching them run on databases in the range of 50GB where the logs are growing well over that for rebuilds or even reorgs. Once you have a few databases like this on a server, you can suddenly eat through a lot of disk space just for holding logs during maintenance.
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Mar 2, 2015
I have 10 Gb index and disk space only left 5gb .
How can i rebuild index ?
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Sep 3, 2014
I did tried the encryption on server "A" for database "AdventureWorks2012". Then I tried to restore to server "B". There was the certificate issue, and I thought "of course : it's encrypted ! Let's deactivate it". So here I go "ALTER DATABASE AdventureWorks2012 SET ENCYRPTION OFF".I look at sys.databases : not encrypted.I backup using no encryption, I verify using msdb.dbo.backupset : not encrypted.
I move my backup to my other server where encryption was never configured (so no certificate, nothing...), and I have the error :
Msg 33111, Level 16, State 3, Line 1
Cannot find server certificate with thumbprint '0xFA130E58C999C4919B8975999C83A75A403B11D8'.
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
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Dec 4, 2013
And have chosen the destination - unstructered (flat) file. But the wizard proposes to export only one table (dbo.Acocount) and all the others from the list are not exported. How can I export ALL the data into one file.I need to do this to edit the syntax in the editor and then import this data and database structure into Postgresql
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Mar 14, 2014
I have two databases like each other that one is the backup of another. Each DB have 2 filegroups. I want to replace one filegroup from one db to another. How do I do this? Or how do I backup and then restore?
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Nov 3, 2014
Query to show logins that don't have any permissions within the SQL instance? I'm tasked with doing some cleanup and have found some cases where the database was deleted or moved to another server but the logins that used it were not deleted. I'd like to identify them to research.
For instance a query to show logins that have no permissions in any of the existing databases would be handy. I'm thinking it would be complicated by the need to loop through all of the existing databases and then outer join it to the list of instance level logins. Going to try to write something like that but was hoping that a script already exists.
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Nov 22, 2014
I have multiple SQL 2008 severs with databases. Also, 1 mirroring server in place.
Since my database count is increasing can i have only 1 mirroring server. Is there any limit of db at mirroring server. I would have approx. 150 databases.
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Jan 31, 2015
I want to Replace The Big Log database with A new one ( A database with same structure).But current DB has many connection .
This is my plan :
1- Create a new database with same structure.
2- Rename current database to olddb with this code :
USE master
GO
EXEC sp_dboption CurDataBase, 'Single User', True
EXEC sp_renamedb 'CurDataBase', 'OldDataBase'
GO
3- Rename Newdb to current DB.
USE master
GO
EXEC sp_renamedb 'NewDataBase', 'CurDataBase'
is it true ? and Tsql code is ok ? (dont forget many of connection to curdatabase (that Is a log db) and loss some seconds data is not problems)
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Apr 13, 2015
My database went into suspected mode. and after we had run some script, it came out from the suspected mode. but we encountered this error while opening table in database.
2009-11-02 15:46:42.90 spid51 Error: 824, Severity: 24, State: 2.
2009-11-02 15:46:42.90 spid51 SQL Server detected a logical consistency-based I/O error: incorrect pageid (expected 1:43686; actual 0:0). It occurred during a read of page (1:43686) in database ID 23 at offset 0x0000001554c000 in file 'H:MSSQL.SQL2008MSSQLDATAmy_db.mdf'.
Additional messages in the SQL Server error log or system event log may provide more detail. This is a severe error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online.
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Apr 14, 2015
I have a job under the SQL Server Agent, which is configured to send an email notification on failure.
The job is scheduled to run every 30 minutes.
Is it somehow possible to configure it so that it only sends one email in case of subsequent failures instead of "spamming" my inbox every half hour?
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May 11, 2015
I tried to copy db from server to server by sa user ( sql login) but this error raised and the copy failed
Executed as user: NT ServiceSQLSERVERAGENT. Microsoft (R) SQL Server Execute Package Utility Version 11.0.2100.60 for 64-bit Copyright (C) Microsoft Corporation. All rights reserved. Started: 9:55:24 AM Progress: 2015-05-11 09:55:24.45 Source: 10_32_0_201_10_32_0_202_Transfer Objects Task Task just started the execution.: 0% complete End Progress Error: 2015-05-11 09:56:31.87 Code: 0x00000000 Source: 10_32_0_201_10_32_0_202_Transfer Objects Task
An error occurred while transferring data. See the inner exception for details. StackTrace: at Microsoft.SqlServer. Management. Smo. Transfer. TransferData()The Execution method succeeded, but the
[code]....
number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors. End Warning DTExec: The package execution returned DTSER_FAILURE (1). Started: 9:55:24 AM Finished: 9:56:32 AM Elapsed: 67.892 seconds. The package execution failed. The step failed.
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May 20, 2015
Is there a better way to deal with the virtual log files?...I see several approaches in dealing/decreasing the virtual log files for a database..want to know what's the best n safest approach, from the masters here?
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Jun 15, 2015
in my environment I am running the SQL Server agent job.i am getting below message.
create a master key in the database or open a master key in the session before performing this operation” errorÂ
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Oct 29, 2015
I have an environment with MS-SQL Server 2014 and always-on availability group configured (on 2-nodes).
I'm writing a Powershell Script which removes the database from the availability group (on the primary server) and then SHOULD drop the database on the secondary Server.
That works most of the time, but not always...
When it fails I get the error message:
Cannot drop database "Customer_2" because it is currently in use.
When i check the secondary DB-Server (sp_who2) while the script is running, i see that there is a process for the DB "Customer_2" with Status="background", Command="DB STARTUP" and LastWaitType="REDO_THREAD_PENDING WORK".
As soon as the script fails, this process for "Customer_2" disapears.
This happens always only on the second database in the availability group.
Why is the process still there, even after I removed the database from the Availability Group on the primary node.
If I remove the database from the availability group manually, the "background" process on the secondary node for that database disappears..
[URL]
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Jun 3, 2014
1) We are providing a e governance solution for an organization,where we are providing a centralized database,Client have provided 5 Database server for the same.how can we position the Database Server? there are 5000 Concurrent users and 25000 users,SAN Storage for approx. 60 TB,Database size of 2 TB and growth of 1 TB every year
2) How many instance can we have for above said Case?
3) How much RAM Required ?
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Apr 17, 2014
We are in web site development company,Previously we don't have proxy configuration, after implementing Proxy , we have an issue to connect a remote database.
The error pops "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. Error 53".
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Jun 25, 2014
I am actually very new to SQL databases, I have received an .MDF and .LDF for a database of size 50 GB...
I need to create or attach these files to a new database and extract some columns then convert them to .text or .csv...
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Sep 8, 2014
I've got reporting services on a different box from the database and I can see all the reports, but when I try to setup a subscription, I get this weird error:
The SQL Agent service is not running. This operation requires the SQL Agent service. (rsSchedulerNotResponding)
The same error happens when I connect to the database server via management studio and try to run a job.
I can confirm that SQL Agent service is running.
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Sep 23, 2014
While doing the restore of the database is it better to copy the backup file locally and restore or restore from the network path is good option?
What kind of the problems we may get restoring the backup from the network path?
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Oct 31, 2014
is there a way to backup all stored procedures in a database?
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Dec 29, 2014
how to identify the data leakage in a database , as I heard in one of my environment?
what is the meaning for data leakage ?
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Feb 1, 2015
We have a 2 node clustered instance(SQL 2014) with 26 databases and we would like to enable alwayson for one of the databases for reporting (only one secondary and do not need high availability setup). I'm thinking if the reporting application/queries can explicitly connect to the secondary database(Instance namedatabase name) without using a listener and setup the secondary in asynchronous commit mode. Read about the REDO thread blocking due to reporting workload. How does this affect if I implement the secondary in this way.
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Feb 11, 2015
Copy mssqlsystemresource.mdf of a recently upgraded server and paste to an old server have same effect of upgrading via .exe installation?
My idea is to save time and administrative efforts in upgrades (Service Packs and/or Cumulative Updates) using this method.
According to BOL:
The Resource database makes upgrading to a new version of SQL Server an easier and faster procedure. In earlier versions of SQL Server, upgrading required dropping and creating system objects. Because the Resource database file contains all system objects, an upgrade is now accomplished simply by copying the single Resource database file to the local server.
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