DB Engine :: In-Memory OLTP Use With Existing Tables / Index / Procedures
Nov 10, 2015
1. I need to make use of in memory engine for my pr-existed develop procedures ,tables ,index. do I need and code changes for application and how to store tables /indexes in OLTP memory
Assume table index may have primary key index as well.
2. If table with one primary index and 2 foreign constraints, 3 non clusters indexed. which one able o load to memory area and how t do that.
3. In memory is lock free zone. usually locks will happpen in RDMS context . how this works without locks.
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Nov 11, 2014
Is there a method of forcing existing tables into the in-memory filegroup so the table data can benefit from in-memory processing.
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May 7, 2015
In SQL Server 2014, how big for the block size is better for performance? 64 KB? 4 KB?
For normal database files, best practise is 64 KB disk block size. Not sure if it is same for memory-optimized filegroup.
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Nov 4, 2015
Just wonder if system base tables always use clustered index? I am using SQL Server 2005 and find sys.sysidxstats base table is using heap, not clustered index. Why?
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Jun 17, 2015
We had one of the major issues where one of the table on a heavily used OLTP database seems to have updated the records which were not expected.
Scenario:
We got around more than 12K contracts updated to status expired even though the expiry date is not set to be so:
for E.G : Below table has a column contract status which overnight seems to have updated the values to expired.
Even though the start and expiry date does not follow the logic for above.
We had the above working for past 3 years via a SP scheduled via SQL agent Job which Expire active contracts whose expiration date is less than today's 12:00AM.There has been no change in SP.
How can i track how it happened and what caused it?
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Aug 26, 2014
We are planning to upgrade. We are using Sql 2008R2 now. Which is the better option migrating to SQL 2012 or migrating to 2014?I am thinking 2014 has memory optimized tables and updatable column stored index. So it is better option.
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Nov 24, 2014
How to write Stored Procedures to load the Data Model from OLTP to DWH ?
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Jul 14, 2015
How many no of records of the tables are called large tables.
We are getting more deadlocks. We are using default isolation. Read & insert statements are blocking each other and causes dead locks.
I am thinking that might be purging will reduce deadlocks.
The table has 15million records. Is this table consider as large table or not in OLTP systems?
In general how many records we need to consider as large table.
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Apr 24, 2014
SQL Server In Memory OLTP 2014?
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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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Feb 10, 2015
So I started a new job recently and have noticed a few strange configurations. Typically I would never mess with min memory per query option and index create memory option configuration because i just haven't seen any need to. My typical thought is that if it isn't broke... They have been modified on every single server in my environment.
From Books Online:
• This option is an advanced option and should be changed only by an experienced database administrator or certified SQL Server technician.
• The index create memory option is self-configuring and usually works without requiring adjustment. However, if you experience difficulties creating indexes, consider increasing the value of this option from its run value.
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Jun 30, 2015
Can we add multiple log file in existing database?
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May 16, 2015
How to accurately track how much memory was granted to a DBCC checkdb during it's execution?
I'd like to do this without continuously querying dm_exec_query_memory_grants, if at all possible - but if that's the only option.
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Nov 23, 2015
Is there any easy way to detect SQL Server memory is getting paged out? Any DMV query or tips to confirm it is paging out.
My SQL Server Version is: Microsoft SQL Server 2008 (SP3) - 10.0.5500.0 (X64)
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Jul 9, 2015
Is it available by default or it has to be Configured.
If yes then how to configure Tempdb in Memory for SQL 2012 SP2 CU1?
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May 6, 2015
Is there has any SQL query to check running out of "min memory per query SQL Server"(default value is 1024KB)?
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Apr 28, 2015
How to set maximum server memory by using sql scripts in sql server 2014?
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Sep 10, 2015
We have Windows Server 2008R2 installed on VM Server.On that we have three SQL instances running. From few past months we are observing physical memory is going high. Earlier we observed it was at 86-88%, now it is 96-97%.We have 16RAM & 8 CPU cores on VM. what is the best and ideal configuration so that we can rectify the high physical memory issue.
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Sep 8, 2015
We have a new set up on VM to run an application running 24*7 (migrated from SQL server 2008R2) with below configs:
1. OS- Windows server 2012 Standard 64 bit hosted on Virtual Machine
2. Memory 16 GB and Cores =4 with 2.4GhZ processor
3. SQL server 2012 SP2 , 64 bit Standard edition.
4. Total size of databases as of now 15 GB with biggest being 5 GB.
How should i go around in setting the MAX and MIN server memory settings. I have this set up for many of SQL 2005 and 2008R2 servers, but for 2012 i heard that things has slightly changed.
How should i start analyzing and setting the right value of this MAX and MIN?
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Dec 13, 2007
hi,
is there someway I can use to copy an existing stored procedures to another database?
Thanks!
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Nov 7, 2000
If I rebuild the clustered index using this option (Drop Existing) without specifying the Fill Factor, would it it retain the original Fill Factor?
Thank you
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Jul 20, 2005
I'm working on an ASP.Net project where I want to test code on a localmachine using a local database as a back-end, and then export it tothe production machine where it uses the hosting provider's SQL Serverdatabase on the back-end. Is there a way to export tables from oneSQL Server database to another in such a way that if a table alreadyexists in the destination database, it will be updated to reflect thechanges to the local table, without existing data in the destinationtable being lost? e.g. suppose I change some tables in my localdatabase by adding new fields. Can I "export" these changes to thedestination database so that the new fields will be added to thedestination tables (and filled in with default values), without losingdata in the destination tables?If I run the DTS Import/Export Wizard that comes with SQL Server andchoose "Copy table(s) and view(s) from the source database" and choosethe tables I want to copy, there is apparently no option *not* to copythe data, and since I don't want to copy the data, that choice doesn'twork. If instead of "Copy table(s) and view(s) from the sourcedatabase", I choose "Copy objects and data between SQL Serverdatabases", then on the following options I can uncheck the "CopyData" box to prevent data being copied. But for the "CreateDestination Objects" choices, I have to uncheck "Drop destinationobjects first" since I don't want to lose the existing data. But whenI uncheck that and try to do the copy, I get collisions between theproperties of the local table and the existing destination table,e.g.:"Table 'wbuser' already has a primary key defined on it."Is there no way to do what I want using the DTS Import/Export Wizard?Can it be done some other way?-Bennett
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Aug 5, 2015
Eager to know to set the Max Value of Maxtransfersize and Buffercount adjustment but also anxious to know Physical memory impact.URL...The max size that can be used is the (Buffer Pool’s To Physical Memory / 16). As returned from the GlobalMemoryStatusEx (ullTotalPhys ) API call. HereBob dorr saysBuffer Pool’s To Physical Memory/16 what it means? (ie. Buffer Pool/ Physical memory/16.0 or (Physical Memory - buffer pool)/16
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Apr 23, 2015
One server, a part of a 2 node always on cluster, had problems, I had to restart.
I'm getting this error for example now:
Error: 49910, Severity: 10, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
+
SQL Server was unable to run a new system task, either because there is insufficient memory or the number of configured sessions exceeds the maximum allowed in the server. Verify that the server has adequate memory. Use sp_configure with option 'user connections' to check the maximum number of user connections allowed. Use sys.dm_exec_sessions to check the current number of sessions, including user processes.
Now, on the instance I have activated maximum servere memory, my question; Is it possible to adjust this setting without starting the service?
Some parameter for example?
The server itself have enough memory.
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Sep 8, 2004
Does anyone have any scripts, or know of any tools, that can scan through all of the SPs that I have inherited, documenting details?
Thx
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Oct 29, 2015
If I create a memory table inside a while loop, I expect that every loop the memory table is (newly) created and thus empty.
But when I test this, I see that on the second, third, ... run the inserted data in the memory table is still present and not cleared.
This can be reproduces with the following code:
DECLARE @tbl TABLE
( [id] BIGINT )
DECLARE @tbl2 TABLE
( [value] BIGINT )
INSERT INTO @tbl
VALUES (1), (2)
[Code] ....
/*
Expectation: twice 11 and 12 in @tbl2
Actual result: three times 11 and 12
*/
SELECT *
FROM @tbl2
Is this a wrong assumption or is this a bug in SQL Server? (Tested on: SQL Server 2014 and 2008).
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Sep 29, 2015
On first Node A: The server has 16 GB of physical RAM.
On second Node B: The server has 10 GB of physical RAM.
Now, this being Active Active, Node A can be clustered on failure onto Node B..Now reporting server is configured under these two nodes, with defined MAX and MIN server memory of 12 as MAX and 0 is min IN GB.Now with this setting on SQL whenever the cluster moves, such config make OS goes low on node for 10 GB.I am only left with option of switching this MAX and MIN to a default setting or is there any other alternative such as script which can change this setting accordingly when cluster moves to respective server.
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Apr 30, 2015
I am searching for query to find total memory allocated to sqlserver, and how much being used utilized as well cpu utilization percentage .
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Apr 29, 2015
After I have set the maximum sql server memory in sql server 2014 using sp_configure, do I need to reboot whole server or restart sql service?
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May 8, 2008
As noted on the msdn the ANSI_NULLS for a stored procedure are set at time off creation (http://msdn.microsoft.com/en-us/library/aa259229(SQL.80).aspx).
Using:
- SQL server 2000
My question is; How do i get the details of a sp and display the ANSI_NULLS setting for it.
("select * from information_schema.routines" doesnt shows this information)
Is this possible in SQL 2000 (or 2005)?
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Jul 7, 2015
My Integrity job started failing recently with the following error. Msg 701, Level 17, State 123, Line 1 There is insufficient system memory in resource pool 'default' to run this query. Process Exit Code 1. The step failed.
select @@ version
Microsoft SQL Server 2008 R2 (SP2) - 10.50.4033.0 (X64)
Jul 9 2014 16:04:25
Copyright (c) Microsoft Corporation
Developer Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1) (Hypervisor)
System is having 4GB RAM and SQL is using most of it. It has 2 processors.
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Nov 24, 2015
What is the reason behind Index key length limitation upto 900 bytes?
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Jul 26, 2015
I have one partition table "tablea" with partition key dateentry on yearly basis and table have four partition with name y2013,y2014,y2013,y2015 with one partition schema . How I can create partition index on tablea that first time create partition index and next time I want to rebuild index only on y2015 partition .
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