The columnstore tag has no wiki summary.
2
votes
0answers
28 views
Batch mode in SQL Server
I want to try the column store index in SQL Server and im trying to get my queries to run in batch mode, i rewrote my query this way( it had an outer join before) but the execution plan still show ...
0
votes
1answer
159 views
Storing 5TB web server access log vs OLAP DB
We have over 5TB compressed web server log in a HDFS and we often analyse using Hadoop.
It is painful to run map reduce on 5TB of data and most importantly, not many developer are familiar with it.
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1
vote
0answers
87 views
Best Practice to update columnstore indexed tables
I have a table with aprox. 22 Bn rows, for each month I have made one partition that and each partition has two data files. I created the columnstore index on this table and the performance ...
1
vote
0answers
48 views
More logical Reads Than allocated Pages using Columnstore Index
I took a script from web to demonstrate column store index. It creates a table and inserts test data.
use adventureworks2012;
go
drop table sales2;
create table sales2 (
[id] int not null ...
1
vote
1answer
227 views
IBM DB2 - store large files
I want to store large files in a DB2 database and I need more information about which is the best technique to use as I am new in this IBM product (previous experience with T-SQL only).
The ...
6
votes
2answers
133 views
Does the order of columns in a columnstore index matter?
I have a table with ~200 million rows and ~15 columns in it. I am planning to create a COLUMNSTORE index on my table.
Will there be any change in performance based on the order of columns that I use ...
6
votes
2answers
595 views
Database for building a realtime analytics system
I want to build a system similar to Google Analytics (only used for internal use, less traffic and less feature), and mainly focus on
Real time counting of unique URI visit/PV by different ...
9
votes
1answer
689 views
What's the anatomy of a columnstore index?
One of the new features in SQL Server 2012 codenamed Denali is the Columnstore index.
I know a good bit about regular old row-store indexes, like the b-tree structure, differences in storage between ...
