SQL Server Admin 2014 :: Updating Statistics On Specific Indices Script
Aug 8, 2015
I'm looking for a quick script that someone has already written to update statistics (not to rebuild or re-organise) on specific indices in specific databases - I guess loop though a table comprising of a list of databases and the indices.
I know Ola has one but I'm not look for something that is that complicated. If I cannot find one I'm going to have to write one myself - I want to try and avoid re-inventing the wheel as tomorrow I have to do this work and it's about 7K plus indices in about 10+ databases.
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Dec 23, 2014
I'm working on databases where statistics of some indexes (tables) are changing too frequently. Once I update them manually, one minute after they get 10-20% change, and five minutes after they get over 100% change. Tables get updated very frequently (multiple times in a second).
When I run a query to read from sys.stats, sys.dm_db_stats_properties and other dynamic views, I see that they were last updated when I did it manually, but the change rate overpassed the 500+20% (tables have multiples of 10K rows). Auto create and update statistics are set to true on all databases, and I don't know why sql server does not do that automatically.
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Apr 7, 2015
I have this query
SELECT top 100 Ltrim([text]),objectid,total_rows,total_logical_reads , execution_count
FROM sys.dm_exec_query_stats AS a
CROSS APPLY sys.dm_exec_sql_text(a.sql_handle) AS b
where last_execution_time >= '2015-04-07 10:01:01.01'
ORDER BY execution_count DESC
But the result of execution count is from the first. I want to know it only one day.
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Apr 8, 2015
I need to do some operations on a table when any user dont work with it.How do i do it?Do i lock the table? and is it possible?
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Oct 29, 2015
This store procedure will get some executable queries from the select statement, the cursor will fetch each rows to execute the query and insert the queries into table_3 to mark as 'E'. Until 17:00, this store procedure will stop execute the queries and just get the queries from select statement insert into table_3 to mark as 'C'.
I don't know why the outputs in table_3 are quiet different than I think. This store procedure comes out with two exactly same queries and one marked as C and another marked as E.
CREATE PROCEDURE procedure1
AS
DECLARE cursor_1 CURSOR FOR
SELECT
'This is a executable query'
FROM table_1
DECLARE @table_2
DECLARE @stoptime DATETIME = NULL;
[Code] ....
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Aug 5, 2015
I have a user who needs access to views like(dbo.viewnameabc1,dbo.viewnameabc2 and so on...) dbo.viewnameabc* and anytime the user creates the view he already have the permission to view those views....
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Sep 11, 2015
We have oracle linked server created on one of the sql server 2008 standard , we are fetching data from oracle and updating some records in sql server . Previously its working fine but we are suddenly facing below issue.
Below error occurred during process .
OLE DB provider "OraOLEDB.Oracle" for linked server "<linkedservername>" returned message "".
Msg 7346, Level 16, State 2, Line 1
Cannot get the data of the row from the OLE DB provider "OraOLEDB.Oracle" for linked server "<linked server name>".
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Aug 27, 2015
I want to set up a database role so that users can use sp_readerrorlog through SSMS. It does a check on membership in the securityadmin role.
I have tested it and can see you can grant execute on xp_readerrorlog but the SSMS GUI uses sp_readerrorlog.
I thought I could create a user/certificate and add the signature to sp_readerrorlog but it's not permitted (likely because it's not a normal database object).
So the other solution is to add the users to the securityadmin role but then explicitly deny alter any login (best done with a custom server role in 2012+ but otherwise just manually in 2008). I tested this out and it works, I'm not able to alter any logins or increase my own permissions, I also did a check of what's reported from fn_my_permissions(null, null) and it shows minimal permissions like I'd expect.
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Jan 17, 2007
Hi All,
I have few quries
1) Do we need downtime or to make database offline while updating statistics for table? Or this can be done online?
2) If this can be done online, will it consume CPU or memory?
3) Will the log file will grow during statistics updation?
Thanks in Advance
Regards
SS
Don't sit back because of failure. It will come back to check if you still available. -- Binu
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Jul 20, 2005
Hello all,I've written a stored procedure which runs OK for thefirst few thousand records it processes, then aroundabout the 10,000th record it suffers a sudden and dramaticdrop in performance (from about 40 records per second toabout 1 per second).I've found that when this happens, if I run an UPDATE STATISTICSquery on the affected tables, performance picks up again,which is good. However, this is a query that will berunning unattended, so I thought that I good idea wouldbe to put the UPDATE STATISTICS statement in the storedprocedure and have it run after about eight thousand recordshave been processed.However, I find that even though the statement is runafter the 8,000th record, the performance drop *still*occurs after the 10,000th record. I find this odd becausethe statistics have just recently been updated. Is thereanything else I should be looking at?TIA,--Akinaknak at aksoto dot idps dot co dot uk
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Sep 9, 2015
I have huge export files in a DB and i need to check if there are any datasets that have the same value in the first column, but a different in another one, via a query of course.
Like this:
ID IS NULL
1 1
2 1
3 0
1 0
The expected ID i get as a result of my query should be 1 in this case.
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Apr 14, 2015
I inherited a lot of Servers to upgrade to 2014 to include an SSRS Server.
The encryption Key was never backed up and it seems that no one knows what the password is?
Do I have to manually load the reports? There are a lot of Reports.
[URL]
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Apr 1, 2014
--===== If the test table already exists, drop it
IF OBJECT_ID('TempDB..#mytable','U') IS NOT NULL
DROP TABLE #mytable
--===== Create the test table with
CREATE TABLE #mytable
(
EMP_ID INT,
Title varchar(50),
DateValue DATETIME,
TITLE_YEAR INT,
[code]....
I am new to this level of coding in SQL SERVER 2012, but I am looking to update the TITLE_YEAR field in the temp table with the Year the employee is in that title. For example for employee 11127 the data should look like this:
EMP_IDTitle DateValue TITLE_YEAR
3 Senior Consultant 2009-01-01 00:00:00.0001
3 Director 2010-01-01 00:00:00.0001
3 Director 2011-01-01 00:00:00.0002
3 Director 2012-01-01 00:00:00.0003
3 Director 2013-01-01 00:00:00.0004
3 Senior Director 2014-01-01 00:00:00.0001
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Oct 2, 2014
I have a table :
id + A + B
1 |0,11| 0
2 |0,45| 0,5
3 |0,85| 0,75
I need to calculate the following :
F = 0,85 * ( 1 - 0,75 * ( 1 - 0,45 * ( 1 - 0,5 * ( 1 - 0,11 * ( 1 - 0 )))))
In which F = A3 * ( 1 - B3 * ( 1 - A2 * ( 1 - B2 * ( 1 - A1 * ( 1 - B1 )))))
It seemed quite easy at first glance. I Built it up via string concatenation and thought to execute the dynamic sql with sp_exec and get the result. As I don't like dynamic sql I was wondering If there is any other way..
ALTER PROC [dbo].[Tools_Serial_FE]
AS
BEGIN
DECLARE @IP FLOAT,
@IF FLOAT,
@FE FLOAT,
[Code] ....
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Apr 8, 2015
I need to do some operations on a table when any user dont work with it.How do i do it?
Do i lock the table? and is it possible?(I dont want to deny permission from a user because cause error)
Can i do it with a open transaction ?
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May 20, 2015
I created a new login and then created a new user [COM] in DB with default schema pointing to [COM]
I created then schema [COM] WITH AUTHORIZATION [COM]
I want this [COM] user to have all permissions it needs on [COM] schema only. How do I do that? When I try to create table [Com].Table it gives me permission denied.
What am I missing?
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Sep 26, 2013
I want to use BCP to load data from a text file.
By default, constraints are turned off in bcp, so I use the CHECK_CONSTRAINTS hint.
bcp aborts if ANY of the rows contains a FK violation. No data get loaded.
So if I add the -b 1 batch size option, it loads all data UNTIL the first FK violation, but nothing after that.
I want to load EVERYTHING ... except for the violations. But bcp won't let me. Is there a way?
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Jan 13, 2014
If I install an instance with Windows Only authentication, and then change it to Mixed Mode, if I enable the sa login, the password has already been set. What is the default? If it's generated, how secure is it? Is the password generated? What algorithm is used for that?
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Mar 21, 2014
My sql databases in SQL Server 2014 has the status "suspend" as I saw in SQL Management Studio. I can't restore to serviceable condition sql databases through standard procedures. I need to restore .mdf file.
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Jun 18, 2014
I am using a monitoring system where I can monitor a numeric SQL result assuming the result is one field and one row.I would like to do this to say monitor the free available space or percentage on say the Master database. DBCC SQLPERF gives me a few columns and results for all databases on the server.
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Jun 25, 2014
In our environment applications are using a DNS name which points to the physical server ip address. Now we are planning to move to 2014. We are planning to have servers in different subnets so we will be having two ip adresses for listener. How we can point the DNS to the listener ips? If failover happens can the DNS point to the exact ip address of the listener where it's primary node?
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Jul 31, 2014
Is there a way to schedule a sql job to run at different intervals
For eg:
The job should run at
7:00 Am
8:00 AM
and then at 10:00 Am
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Nov 19, 2014
We installed the Sql 2014 in Test server.
We observed frequently
"Process 0:0:0 (0x1e10) Worker 0x00000006B6D341A0 appears to be non-yielding on Scheduler 13. Thread creation time: 12906028806348. Approx Thread CPU Used: kernel 0 ms, user 0 ms. Process Utilization 13%. System Idle 84%. Interval: 70189 ms."
Is it better to run the profiler or performan counter?
What are the filters we have to select in the profiler to monitor the Sql server
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Dec 8, 2014
I have a SQL server box running 2014 reporting services. I have another server running IIS v8.
I would like to be able to connect to the IIS site and be given the SSRS report browser.
So externally if I browse to [URL], I am presented with the report server interface, the same as if I browse to http://xxx.xxx.xxx.xxx/reports internally.
What are my options?
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Dec 11, 2014
What is the best approach for a read only copy of a database that is ~ 1TB. The primary database is fed nightly with an ETL process. We are currently trying to duplicate the ETL to read only server but that process is not going well. So we are looking at other options to let SQL make the copy.
The primary database is on a Win12R2 with SQL 12 or 14, a 2 node A/P failover cluster.
The read only copy will be on a Win12R2 with SQL 12 or 14. It is not a requirement to fail over to the read only copy if the primary should go down.
What would best the approach to accomplish the end result?
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Jan 12, 2015
I did not worked on AVG in sql 2012, what are the possible errors and how to resolve in always on in sql 2012 .
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Jan 18, 2015
I have 10 databases which are configured as principal in mirroring I need to failover all the databases as part of failover , instead of writing query each database as parner failover, is an script which will generate the databases as principal to failover ?
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Feb 18, 2015
How to check the delay in between replicas in AG?
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Feb 26, 2015
my 4 GB .OST file is corrupted and i am not able to access my mails and contacts.
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Apr 7, 2015
I got query from sysproccesses and the result for one spid is : SQLAgent - TSQL JobStep (Job 0xF3BDA6DFF9DCF94D81FF97C49EDA7C61 : Step 1
Which job has this code : 0xF3BDA6DFF9DCF94D81FF97C49EDA7C61
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May 28, 2015
After installing SSMS on some computers - the only way we can get SSMS to run correctly is to run it as the administrator. Is there a way where you don't have to do that? These end users are logging as themselves and have accounts in SQL Server all set up - but SSMS will only launch for them if we right click and select "run as administrator".After doing some digging - it seems that this is a common problem out there.
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Jun 19, 2015
Have a SQL 2014 install and cannot for the life of me get the maintenance plan to remove old backups. I've tried everything. Rights to the folder where the backups are stored are adequate, extension set in the clean up task is as it should be, etc. Log shows the job ran successfully. Running the command manually shows successful completion, but backups are still not removed.
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Jul 29, 2015
when execute the restore log command, in the messages window it shows how many seconds the restore takes, at the meantime, on the status bar, it also shows the seconds the command takes.
Two values are different and could be very different, please see below examples , restoring takes 1.8 seconds, but in total the command takes 4 seconds to complete, the other one is 8.1 seconds and 12 seconds.
What does SQL Server or Windows do after the restoring?
pic a:
pic b:
I did a xperf, I can see after the restoring is completed, sql server did garbage collect and log write, which just run very quickly, but storage is busy on reading the log file for nearly 2.2 seconds( 4-1.8), and 4 seconds ( 12-8.1) .
pic 1:
pic 2:
see pic 1 above, from 13 to 17, the restore operation is finished, but the storage jump to 100% active to do some reads, only reads no writes. zoom that period shows pic 2, it read 4096 (I don't know the unit size) for about 4 seconds, what does this do?
Data file, log file, backup file are no different drives, but all local drive, the interesting point is the read jumped after restoring, I tested it on different server, same result...
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