Is Index Created On Primary Or Secondary Key?
Apr 15, 2015Is index created on only primary key or it can be created on secondary key ?
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Primary && Secondary Server
Dec 31, 2006Hello,
I would like to know how do I carry out this two cases in efficient way:
1. I have two SQL 2005 servers running. One as primary, one as secondary. I would like to synchronize or replicate the transactions at real-time.
2. When primary goes down, I would like my secondary server to take place in needless of IP changes and application settings.
If you have a good architecture on this, please share with me. I am not sure whether my questions are clear enough or not. I also will be reading some articles about these. Thank you in advance.
Regards,
Paing
SQL Server Admin 2014 :: How Data Writes In Multiple Secondary Files If There Is No Filegroup Created
Nov 12, 2014I read , When sql server Database having multiple data files within single filegroup then sql server writes data in multiple proportional file algorithm where the amount of data written to a file is proportionate to the amount of free space in that file, compared to other files in the filegroup.
so if there is no filegroups created and multiple secondary files are attached in databse , is there same way data stored and writes data in multiple files by the same algorithm or any different way.
SQL 2012 :: AG Making Secondary The New Primary
Sep 23, 2015"If we fail over a SQL AG group on a failover cluster from one node to another making the secondary the new primary, is there any reason why we would have to fail it back over to the old primary node?"
View 2 Replies View RelatedDifference Between Multiple Primary And Secondary Files..
Apr 10, 2006Hi all..!If I want to split an SQL DB into several physical files (as its 500GBdisk ran out of space, won't even run shrinks any more, and we boughtanother 500GB disk to add to the PC)then what is the difference between:Adding another File to the primary group which will reside on the newgroup;Adding another file in another group.We do not want to set any db objects (Tables, indexes)to a secondary file, as this will involve lengthy data movingoperations. We would like the DB to continue working from where it isutilizing the added space in a contigous (striped) manner.Will striping occur in both cases? as I understand striping it meansthat our stuck SQL Server will awake back to life as it will now have500GB more data for its DB, even though we haven't set any of itsobjects (tables, indexes) to explicitly use the secondary NDF file onthe new disk?or will it only utilize the new space if we set some objects to resideon that NDF?for example if we run large queries which crash now (due to lack ofspace) when we add the second drive will they start to work as theprocess will grow striped from the full drive to the new drive, even ifall the queries' source tables are all still set to the old drive?Thanks for any replies?
View 1 Replies View RelatedSQL 2012 :: Clustering AlwaysOn - Primary And Secondary Replica
Apr 11, 2014Looking for info on ole/requirement of primary and secondary replica under SQL Server 2012 AlwaysOn.
View 4 Replies View RelatedSQL 2012 :: AlwaysOn Secondary Node Slower Than Primary
Oct 3, 2014I have a SP that runs on the primary in 18 min and 45 min on the secondary( poorly written cursor,trying to fix it).Both machines are Exactly the same.I ran them in the middle of the night when no one was on the Sec. Node as we use it for reporting.
PLE: 7,000+
AVG Disk sec/write below .01
AVG Disk sec/read below .01
CPU below 5%
both machines set a max dop 4
Recovery :: Set Synchronization Time From Primary To Secondary Replica
Sep 28, 2015As per our client requirement we want to set synchronization time from primary replica to secondary replica after 20 minutes. Is it possible in MSSQL AlwaysOn Availability Groups in SQL Server 2012?
View 6 Replies View RelatedHow To Create Unique Secondary Index ?? HELP
Apr 3, 2007I have created the companyid as Primary Key.How to create a unique secondary index on Company Name. To avoid inserting duplicate records in database with the same companyname. I m creatin database in sql server 2005 with asp.net C# 2005. I know one way is write the query if not exists at the time of insert.But,i want to know is there anyother way to make a unique secondary index for the companyname on the company tablethanxs
View 1 Replies View RelatedSQL 2012 :: VLFs On AlwaysOn Primary Replica After Log Backup From Secondary
Aug 6, 2014I was working on a job to send me info each morning about database file free space and was noticing some odd things when looking at the log file VLFs for one of my databases in an AlwaysOn availability group.When I run DBCC LOGINFO on the secondary replica for this database, I get what I expect and most VLFs have a status of 0 (indicating the VLFs are reusable or unused). When I run DBCC LOGINFO on the primary replica, all of the VLFs have a status of 2 (active or recoverable).
Since log backups on the secondary replica in AlwaysOn still truncate the log in the primary replica, I would expect that the VLFs in the primary replica would also be mostly in a reusable or unused state. My log file sizes are the same size on each server and my backups are completing successfully. what might be causing the VLFs on the primary replica to have a status of 2 in DBCC LOGINFO when taking log backups from the secondary replica?
SQL 2012 :: Failover - Secondary Server Acting As Primary Role
Jul 20, 2015In my environment always on is there. Today I observed that primary server fail over to secondary server .now the secondary server acting as primary role.
Can I know when is fail over is happened and who did the fail over. Is there any script to find this?
DB Design :: Need To Recreate All Indexes From Primary To Secondary File Group
Jul 14, 2015I have a database around 500 GB. right now the database have only one data file and one log, it has only one filegroup also.all the indexes and table are placed in Primary Filegroup . we are going to separate them. the planing is to move all the indexes to Secondary filegroup and all the table will be in Primary filegroup.But there will be a problem while implementing it because there are around 600 tables and each table have at least 2 non-clustered index , so is there any way to move all the index to Secondary Filegroup.
View 3 Replies View RelatedSQL Server Admin 2014 :: Read Only DNS Listener Failover Automation From Primary To Secondary
Mar 23, 2015I have a 2 node cluster with 2 standalone 2k14 instances having alwayson setup. As per client requirement we have created a client access point with a cname alias in dns to connect to secondary replica. Now, everytime whenerver the roles switch over one has to manually move this resource from the previous secondary node to the new secondary node. This is tedious, and should not be done manually either, so I am looking for a way to automate it so that as soon as the role switches over, the resource group after some time should also switch over to the current secondary.
Env details
xa (current primary)
y2a (secondary)
client access point (resource group): aglreadtest
SQL Server Admin 2014 :: Primary Filegroup For System Objects / Secondary For Data
Jul 27, 2015I have been creating databases in SQL 2008 with a primary filegroup for the system objects and a secondary, marked Default, for the data.
We are preparing a migration to SQL 2014, and the administrator is complaining he won't adopt this structure on the new servers because 'there is no benefit' and 'a backup cannot be restored (!?)'.
SQL 2012 :: Local Backup Strategy On Primary With Transaction Log Shipping Enabled To Secondary DR Site
Oct 2, 2014I have a scenario where a customer is going to be using Log Shipping to the DR site; however, we need to maintain the normal backup strategy on the current system. (i.e. Nightly Full, Every 6 Hour Differential and Hourly Transaction Log backup)I know how to setup Transaction Log Shipping and Fail-over to DR and backup but now the local backup strategy is going to be an issue. I use the [URL] .... maintenance solution currently.
Is it even possible to do regular backups locally keeping data integrity for your backup strategy with Transaction Log Shipping enabled?
Index Created Date
Dec 10, 2007
Hi All,
Is there anyway to get the date an index was created on a table? I can see that there is a created date column on various system tables (sys.objects etc) but I can't find one related to an index.
Thanks
Rich
How Should The Non-clustered Index Be Created???
Sep 22, 2006Hey. I've a table with about 18 columns Many of the queries which are made on this table include 4 or 5 columns in the where clause and thesame query has 5 or 6 of the other columns in the select clause. Somebody has created about 11 indexes, 1 for each column...In essence the query would look like this
select col1,col2,col3,col4,col5
from table1
where col6=100
and col7='test.exe'
and col8 = 'helloWorld'
I am thinking the index should be built on all 8 of this columns in SQL 2000. Also, in SQL 2005, I know I can use included columns for this but can someone tell me what columns should the non-clustered built on and which cols should be included? Thank you.
Would I Use An Index On A Table I Already Created To Verifty Uniqueness?
Sep 4, 2004I want to make sure that usernames and folder names (that are stored in the database) are all unique when created by the admin through an admin control panel.
How would I code and use an Index to make sure that the 2 columns are unique?
I've looked at examples on the net but nothing is telling me how I can create an index through Enterprise Manager? Thanks
Would I Use An Index On A Table I Already Created To Verifty Uniqueness?
Sep 4, 2004I want to make sure that usernames and folder names (that are stored in the database) are all unique when created by the admin through an admin control panel.
How would I code and use an Index to make sure that the 2 columns are unique?
I've looked at examples on the net but nothing is telling me how I can create an index through Enterprise Manager? Thanks :)
SQL 2012 :: Backup On Primary Replica In Case Of Secondary Replica Is Down
Jun 9, 2014I have 2 SQL Server replicas configured on SQL Server 2012 AlwaysOn. e.g. SQL1 & SQL2.
I have configured backup job on both SQL Server with the following statement. and the job occurs every 10 minutes.
•declare @DBNAME sysname,@sqlstr varchar(500)
set @DBNAME = 'dba'
IF (sys.fn_hadr_backup_is_preferred_replica(@DBNAME)=0)
BEGIN
--Select 'This is not the preferred replica, exiting with success';
[Code] ...
I turned off SQL2 for Windows maintenance. So there is only SQL1 is online. Afterwards. I checked the backup folder and didn't see any new backup files was created after SQL2 was offline. I rerun the job. It still doesn't backup database on the Primary Replica. Then I searched on SQL Server Book online. It says
Prefer Secondary
Specifies that backups should occur on a secondary replica except when the primary replica is the only replica online. In that case, the backup should occur on the primary replica. This is the default option.
According to what it says, it should backup on the Primary Replica.
SQL 2012 :: Log Shipping - Reboot Secondary Node And Then Primary Node
Apr 20, 2015I have not used log shipping before and find myself in a position where I need to reboot the secondary node and then the primary node and I don't actually need to failover.
Is there anything I need to be aware of. When rebooting the secondary node I assume the transactions will be held in the primary nodes log till the secondary comes back and just carry on once back up?
When rebooting the primary node nothing needs to be done and the log shipping will just start again once it has come back?
Transact SQL :: Results From Secondary Server Inside Primary Server
Jul 14, 2015Inside my sp on the Primary server are 3 commands:
exec msdb..sp_start_job @job_name = N'JobA' --
Running on Primary ServerEXEC Server2.msdb.dbo.sp_start_job @job_name = N'JobB';Running on Secondary ServerSelect * from Server2.Table --
Running on Secondary Server
So far the commands are working just fine when I kick them off one at a time. But when I kick off the sp as a whole I notice that the timing just isn't keeping up. For instance, Step 3 is running before Step 2 is finished. It appears that as the Primary Server kicks off Step 2, it doesn't seem to care about the outcome and moves right to Step 3 which in turn provides me erroneous data.How can I get Step 3 to wait until Step 2 is actually finished keeping in mind the Secondary server is part of this equation?
Index Files Created During Free Text Search
Mar 8, 2008history.ix, index_a.ix, index_d_1.ix, index_di_1.ix, index_i_2.ix,
index_k_2.ix, index_kl_1.ix, index_klh_2.ix, index_n.ix,
index_r_l.ix, index_sv.ix, index_v.ix, index_v_ix.log, indexlog.dat.
This index files are created in my hidden folder. Now, my problem is,
1) Is this files associated with Full Text Search.
2) when the file will be created.
3) For what purpose, this files are stored.
SQL Server 2008 :: Newly Created Index And Execution Plan
Jun 17, 2015I run a query
select col1, col2, col3, col4
from Table
where col2=5
order by col1
I have a primary key on the column.The execution plan showing the clustered index scan cost 30% & sort cost 70%..When I run the query I got missing index hint on col2 with 95% impact.So I created the non clustered index on col2.The total executed time decreased by around 80ms but I didn't see any Index name that is using in the execution plan.After creating the index also I am seeing same execution plan
The execution plan showing the clustered index scan cost 30% & sort cost 70% but I can see the total time is reducing & Logical reads on that table is reducing.I am sure that index is useful but why there is no change in the execution plan?
SQL 2012 :: How To Transfer Login To Secondary Server And Assign Same Permission To Secondary DB
Jan 24, 2015i have created a new login in primary server and provided dbowner permission to primary db.how do i transfer this login to secondary server and assign the same permission to secondary db ?
View 2 Replies View RelatedIndex With Primary Key
Jun 1, 2008Hello there,I got a problem when I'm trying to Index a table with PrimaryKeyMy code so far:1 'Create my table2 nonqueryCommand.CommandText = "CREATE TABLE UpdateHistory (id integer IDENTITY(1,1) NOT NULL, version varchar(50) NOT NULL)"3 Console.WriteLine(nonqueryCommand.CommandText)4 Session("Tables") = Session("Tables") + "Number of Rows Affected with table UpdateHistory is: " + nonqueryCommand.ExecuteNonQuery().ToString + "<br />"5 6 'Set column id to Primary Key7 nonqueryCommand.CommandText = "CREATE INDEX idxid ON UpdateHistory (id) With PRIMARY"8 Console.WriteLine(nonqueryCommand.CommandText)9 Session("Tables") = Session("Tables") + "PrimaryKEY - Number of Rows Affected with table UpdateHistory is: " + nonqueryCommand.ExecuteNonQuery().ToString + "<br />"
I do get this error:System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'PRIMARY'. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at updates_100_2.Page_Init(Object sender, EventArgs e) in http://server//admin/NewSystem/1.0.0/2.aspx.vb:line 163Note: Line 163 is 9 here..
Anyone who can see what I'm doing wrong?
Primary Key Index?
May 17, 1999Running SQL 6.5, using ActiveX controls(ADO and Datagrid),NT 4.0. All SP's
are current.
I lose the ability to get distinct values with a client-side cursor
after I set up a primary key. Select distinct works perfect before the
primary key creates an index. Any ideas?
Index And Primary Key
Dec 9, 2004By defining a numeric field in table as primary key, will the table be indexed on that particular field?
View 14 Replies View RelatedPrimary Key Index
Apr 1, 2004Hi,
I have a table in my SQL 2000 database called utContact, this has a primary called ContactID (int, idenitity), by default this should have a clustered index on it, but when I go to view the indexes on the table it shows the primary key index as non clustered.
How can this be?
SQL server also will not let me change the index to clustered, but I need to as this is causing a lot of table scans in query execution plans.
Any help or advice on this matter would be greatly appreciated.
Cheers
Change Primary Index Value
Oct 28, 2006Is there any way to change the value of a primary key value?
View 10 Replies View RelatedPrimary Key With Cluster Index
Oct 9, 2007Hi All,
One of my client having 1 million(nearly) records in a table.
I defined the table as below
1) Created table with one col(we can name it as "ID") having IDENTITY
2) Using "alter table", I created CLUSTERED PRIMARY KEY Constraint on Same field (ID)
3) The Primary key having 2 ref with another 2 tables
Now the issue is when we create or define a primary key (With Clustered Option) automatically cluster Index will be created on defined table
As such table having huge data whenever any updation or insertion against that particular table taking huge amount of time, because the cluster Index trying re-paging whole data. Because of re-paging each and every time "Transaction Log also growing in huge" (database is in full recovery mode and client wants in same mode only)
Data partitioning not posible because whole data related and current live data
I tried following options with vain
1) To Clear transaction log I suggested to take regular log backup's
2) I tried to drop cluster index and tried to implement non clustered index
Drop and re-create index is take taking huge amount of time
Even in this process I have to Re_Index remaining Index's also
Pls give me any other solution or suggestion in this regard
with Thanks & Regards
Bhaskara
Help Me Please Error Index - Primary Key
Apr 9, 2008'PXQ_2' table
- Unable to delete index 'PK_PXQ'.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]I/O error (bad page ID) detected during read at offset 0x0000000102e000 in file 'D:MSSQL2000MSSQLxxx.mdf'.
I can't drop Primary Key. How to fix this problem?
Hardware(HDD) no error. I test oke?
Please help me.
-= MIB =-
Primary Key Without Clustered Index
Jan 28, 2008Dear All,
i've read one article that with some option, we can avoid creating clustered index on the primary key column. is ti possible?
how can we create a primary key without allowing sql server to create automaticaly a clustered index?
Vinod
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