Contact me If you wish to contact me, then the best way to do it – is to write me at this address: niko [at] nikoport 26 thoughts on “Contact me” Priyadarshi Alok July 15, 2014 at 9:59 am I have Visual Studio 2008 version 9 and .Net Frame work 4 on 64 Bit Window 7 Operating System As per the installatoin of Google Analytics Step I have install the .ddl in below mention folder using Gacutil.exe all the dll are installed correctly in following location: C:\Windows\Microsoft.NET\assembly\GAC_MSIL DotNetOpenAuth.dll Google.Apis.Analytics.v3.dll Google.Apis.Authentication.OAuth2.dll Google.Apis.dll Newtonsoft.Json.dll SSISComponents.Dts.Pipeline.GoogleAnalyticsSource.dll Zlib.Portable.dll And then i copied these all dlls in following folder : C:\Program Files (x86)\Microsoft SQL Server\100\DTS\PipelineComponents and refreshed the SSIS tool box using command : C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE>devenv /ResetSettings But Still GoogleAnalytics Source is not visible in my SSIS ToolBook Pane. Please help me ,where installion step is missing . Reply ↓ Niko Neugebauer Post authorJuly 21, 2014 at 10:14 pm Hi Priyadarshi Alok, you are trying to installed Google on an unsupported version – you should be using Visual Studio 2010 and SQL Server 2012. Best regards, Niko Reply ↓ Andrew Fenna July 17, 2014 at 11:20 am I attended your SQL Bits training day on columnstore indexes please can you share with me the slides and tsql scripts? Thanks Andrew Reply ↓ Niko Neugebauer Post authorJuly 21, 2014 at 10:06 pm Andrew, I have sent you the materials, thank you for attending SQLBits training day. Reply ↓ Benjamin October 13, 2015 at 10:07 am Hi Niko, We, at PartitionDB, developed a product we would humbled if you to take a look. It’s a community product made to assist SaaS Systems on how to maintain distributed database architecture. Please, by all means, feel free to contact us at firstname.lastname@example.org Best regards Reply ↓ Tom December 12, 2015 at 11:19 pm Hi Nico, I’m confused by when to use MAXDOP option when you create or drop CCI. CREATE CLUSTERED COLUMNSTORE INDEX [IndexName] ON [TableName] WITH (DROP_EXISTING = OFF , MAXDOP=1 ) DROP INDEX [IndexName] ON [TableName] WITH ( ONLINE = OFF, MAXDOP = 1) Question 1) Do I get same results in the end, if I use MAXDOP=1 or MAXDOP=8?, or not using the MAXDOP at all? I heard somewhere that using MAXDOP=1 when you creating CCI will get better Clustering. Question 2) Do you want better Clustering to get better query performance? Question 3) Performance Issues with MAXDOP=1. If I use MAXDOP=1 option when you create or drop CCI, it takes long time to process. 6 hours to create CCI with MAXDOP=1, and 2 hours to drop CCI with MAXDOP=1 If I use MAXDOp=8 option when you create or dorp CCI, process is much faster then using MAXDOP=1 1 hour to create CCI with MAXDOP=8, and 25mins to drop CCI with MAXDOP=8 If my SQL server can handle the CCI Create and Drop with MAXDOP=8 or more, should I be using higer MAXDOP? Thanks for your help Reply ↓ Niko Neugebauer Post authorDecember 13, 2015 at 4:17 pm Hi Tom, First of all you will need to use DROP_EXISTING = ON while re-creating a Columnstore Index over the Clustered rowstore one. Do not drop Columnstore Index, it makes no sense. Create a Rowstore index with DROP_EXISTING = ON ordering data on the most frequently used column, and then re-create a Columnstore Index with DROP_EXISTING = ON. 1. You will find the detailed explanations here on the Segment Clustering: http://www.nikoport.com/2014/04/16/clustered-columnstore-indexes-part-29-data-loading-for-better-segment-elimination/ 2. Yes, it will help to get better segment elimination and thus will allow to read & process less data while getting the same results. 3. MAXDOP = 1 is slow. Using MAXDOP = 8 makes your server using 8 cores, so it should be much faster … 🙂 Please read this article http://www.nikoport.com/2014/04/16/clustered-columnstore-indexes-part-29-data-loading-for-better-segment-elimination/ and let me know if something is still not clear. Best regards, Niko Neugebauer Reply ↓ Mauricio Orellana January 7, 2016 at 8:13 pm Hello Niko a query: SSRS Report Generator 1.8 apparently task does not support exporting to Excel .xlsx format. Any advice to achieve this goal? Stay tuned. thanks.- Reply ↓ Niko Neugebauer Post authorJanuary 10, 2016 at 10:53 pm Hi Mauricio, Since i have no idea, I suggest filing this request on the project page. Best regards, Niko Neugebauer Reply ↓ James Anderson February 16, 2016 at 3:14 pm Hi Niko How do I report potential bugs in the CISL? Reply ↓ Ramya March 21, 2016 at 8:33 pm Hi Niko, I am facing problem with a simple select query which involves three tables with clustered columnstore index on them. For every 15 mins, there is a ETL load running and one of the three tables gets truncated each time before new rows get inserted. This leaves the rowgroup to be open and query becomes too slow. It will run fine if I run rebuild index and update stats on tables. The problem is we are unable to run rebuild index and update stats for every 15 mins. I wanted to know your thoughts on this and if there is anyway this problem can be avoided. Thanks! Reply ↓ Niko Neugebauer Post authorMarch 22, 2016 at 5:24 pm Hi Ramya, Try manually closing the Delta-Stores with ALTER INDEX … REORGANIZE WITH (COMPRESS_ALL_ROW_GROUPS = ON); You will find details here: http://www.nikoport.com/2014/07/04/clustered-columnstore-indexes-part-33-tuple-mover-that-closes-open-delta-stores/ Best regards, Niko Neugebauer Reply ↓ Dale Wilson May 19, 2016 at 7:55 am Hi Niko, I attended your Columnstore Indexes – from basics to optimised analytics at SQLBits. Please could you send me your slides from the training day? Many thanks, Dale Reply ↓ Niko Neugebauer Post authorMay 25, 2016 at 4:14 pm Hi Dale, you will receive them from the SQLBits organisers. I have sent them my materials. Please let me know if there is a problem. Best regards, Niko Reply ↓ Nadir May 26, 2016 at 7:11 pm Hi Niko, I also attend your precon session on SQLBits, could you share the slides and the script please ! Your help is mush appreciated ! Thanks Reply ↓ Nadir May 26, 2016 at 7:11 pm Hi Niko, I also attended your precon session on SQLBits 2016, could you share the slides and the script please ! Your help is mush appreciated ! Thanks Reply ↓ Niko Neugebauer Post authorMay 29, 2016 at 12:01 pm Hi Nadir, you should have received the materials from the SQLBits organisers. If there is a problem, please let me know. Best regards, Niko Neugebauer Reply ↓ Geoff February 2, 2017 at 9:17 pm Do you have a version that supports SQL Server 2016? Thanks! Reply ↓ Niko Neugebauer Post authorFebruary 3, 2017 at 1:51 pm Hi Geoff, nope – I am not the author of that plugin. Reply ↓ Charlie February 8, 2017 at 12:53 am Can this run with SQL Server 2016? Thanks. Reply ↓ Niko Neugebauer Post authorFebruary 8, 2017 at 8:00 am I do not believe so. Reply ↓ anil kumar May 3, 2017 at 5:47 am Hello Niko, Hope you are doing great ! I couldn’t submit my comment on that blog post because of some issues, Can you please help me on below questions ? As you mentioned in part-38 “I understand that at the moment when we are reading Columnstore data from the disk, it is being read directly into Columnstore Object Pool without decompression, and then all the respective pages from the Segments are decompressed into Buffer Pool for returning the result.” – 1) Does it mean Buffer Pool Extension can store decompressed Columnstore data in SQL Server 2016 Standard edition ? 2) How to restrict the memory allocation to columnstore objects (Delta-Stores + Deleted Bitmaps + Decompressed columnstore data) in buffer pool ? 3) Columnstore Object Pool can be of 32GB in SQL Server 2016 STD edition, what is going to be impact of it as most of the stuff is stored in buffer pool ? 4) CCI and NCCI rebuild and reorganize operations are performed in buffer pool rather than in Columnstore pool ? Looking forward for your response. Thank you. Reply ↓ Niko Neugebauer Post authorMay 25, 2017 at 9:30 am Hi Anil, answering your questions: 1) yes. But avoid Buffer Pool Extension for Columnstore Indexes right now, since it is focused on the OLTP scenarios. All operations are done on the page (8KB) level. 2) There is no way to control that. 3) It will depend on the actual data. The cap is the maximum value, it does not mean that your workload will strive to achieve that. 4) yes, to my understanding. Best regards, Niko Reply ↓ Joao Caxias June 28, 2017 at 7:51 am Hey Niko, 1st Congratulations on all work and knowledge share. Truthfully appreciated. On a scenario like this: Sql server 2016 on prem , git(visual studio) with all sql structure (…create tables…) how would i change a normal rowstore create table to a columnstore and have it correctly deploied everytime? Thank you Reply ↓ Niko Neugebauer Post authorJuly 13, 2017 at 6:25 pm Hi João, Sorry for the delay – you caught me on the vacations. Using Test or DEV environment, create Clustered Columnstore Index on the table (you might consider using CISL for that) and start experimenting and observing. Best regards, Niko Reply ↓ Marcus Nugroho August 5, 2017 at 7:06 am Hi Niko, I read your blogs regarding operational analytics using memory optimized table + clustered columnstore (CCI). The workload is as follow: – 50 million rows on the table initially (size is about 50 GB) Run simultaneously: – 300 user insertion process –> 3000 TPS – 500 user query (simple, medium, complex) Use Azure VM (32 cores, 448 GB RAM) resource pool is set to 90% max_memory, 90% max CPU. memory grant is 25% for each user Issue: we got error for some queries. some is complete successfully. There is insufficient system memory in resource pool ‘default’ to run this query. When we run on 10 insert users x 30 query users, there is no error. Do you have any advice regarding this error? what should I try to setting and test again? 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