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Content with tag Stairway Series Rss

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Stairway to Columnstore Indexes Level 6: Updating and Deleting Data in a Columnstore Index

This level looks in detail at what happens when we update or delete data from a clustered columnstore index, the impact it has on concurrent data access, and how without careful maintenance the efficiency of columnstore indexes can degrade over time.  Read more...
By Hugo Kornelis 2018/05/23 (first published: 2016/01/20) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 3,194 reads

What is the Machine Learning Server? Level 2 of the Stairway to ML Services

In Level 2, we look at the architecture and structure of the Machine Learning Services server process.  Read more...
Rating: |  Discuss |   Briefcase | 696 reads

SQL Server Dynamic Online Catalog: Why Should You Care? Stairway to Exploring Database Metadata Level 1

In this first level, we look at the overview of what metadata is contained in each database, gain some understanding of the different types of information, and examine a few basic examples.  Read more...
By Phil Factor 2018/05/09 (first published: 2016/08/03) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 3,028 reads

Installing Machine Learning Services – Level 1 of the Stairway to ML Services

This first installment of the Stairway to Machine Learning Services explains the installation process for this subsystem in SQL Server.  Read more...
Rating: |  Discuss |   Briefcase | 984 reads

Stairway to SQL PowerShell Level 10: Getting data in and out of SQL Server using SQL Server PowerShell

In this level we will look at ways of getting data into and out of SQL Server. We will specifically look at the Database object and a cmdlet Invoke-Sqlcmd or Invoke-SqlCmd2. To get data in, we are going to leverage a PowerShell script that uses SMO to put data into a predefined table in SQL Server.  Read more...
By Ben Miller 2018/04/25 (first published: 2015/12/02) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 5,741 reads

Stairway to Columnstore Indexes Level 5: Adding New Data To Columnstore Indexes

Earlier levels have shown how Columnstore Indexes work effectively with static data. In most tables however, data is hardly ever static. We are constantly inserting new rows, and updating or deleting existing rows. If you think about what this means for a columnstore index, you will realize that this comes with some unique challenges.  Read more...
By Hugo Kornelis 2018/04/18 (first published: 2015/11/04) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 3,705 reads

Row-Level Security Predicate Functions - Level 2 of the Stairway to Row Level Security

In this level, we dive deeper into predicates and the various ways to structure them in an RLS environment.  Read more...
By Steve Jones 2018/04/11 | Source: SQLServerCentral.com | Category: row-level security (rls)
Rating: |  Discuss |   Briefcase | 681 reads

Stairway to Biml Level 4: Using Biml as an SSIS Design Patterns Engine

In this level, we make a large leap forward, showing you how to use BIML to script a large number of packages using C#.  Read more...
By Andy Leonard 2018/04/04 (first published: 2013/08/14) | Source: SQLServerCentral.com | Category: biml
Rating: |  Discuss |   Briefcase | 13,030 reads

Stairway to Advanced T-SQL Level 3: Understanding Common Table Expressions (CTEs)

A CTE is a temporary result set defined by a simple query, and is used within the execution scope of a single INSERT, UPDATE, DELETE, or SELECT statement. In this article we will explore how to define and use CTE's.  Read more...
By 2018/03/21 (first published: 2015/03/18) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 15,961 reads

Stairway to Columnstore Indexes Level 3: Building The Columnstore

The performance increase columnstore indexes grant when reading data from the index is offset by the expensive process required to build the index. In this Stairway level, Hugo Kornelis walks you through the steps SQL Server takes when building (or rebuilding) a columnstore index.  Read more...
By Hugo Kornelis 2018/02/28 (first published: 2015/06/10) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 5,197 reads

Stairway to Database Design Level 9: Normalization

In the final step of Database Design, Joe Celko gives a simple but effective explanation of the normalization process and why it is important.  Read more...
By Joe Celko 2018/02/21 (first published: 2011/11/11) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 12,550 reads

Stairway to Advanced T-SQL Level 6: Creating Rows Of Data Using The UNPIVOT Operator

The UNPIVOT operator does just the opposite of the PIVOT operator, which we looked at in the previous level. By using the PIVOT operator we can take multiple rows of data and create as single row as output. The UNPIVOT operator will take values from a single row and will create multiple rows. Microsoft introduced the UNPIVOT operator when they rolled out SQL Server 2005. In this level I will be showing you different examples of how to use the UNPIVOT operator.  Read more...
By Gregory Larsen 2018/02/07 (first published: 2015/06/24) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 6,150 reads

Stairway to DAX and Power BI - Level 13: Simple Context Manipulation: Introducing the DAX All() Function

Business Intelligence Architect, Analysis Services Maestro, eight-year Microsoft Data Platform MVP and author Bill Pearson introduces the DAX All() function, discussing its syntax, basic uses and operation. He then provides hands-on exposure to All(), focusing largely upon its most basic uses in manipulating filter context.  Read more...
By Bill Pearson 2018/01/31 | Source: SQLServerCentral.com | Category: stairway series
Rating: (not yet rated) |  Discuss |   Briefcase | 396 reads

Stairway to Database Design Level 7: Triggers

In levels one to four, we built the tables, base and virtual, of a schema. Levels five and six dealt with stored procedures. This level deals with a feature you need to avoid as much as possible; this is article is on Triggers.  Read more...
By Joe Celko 2018/01/24 (first published: 2011/09/30) | Category: stairway series
Rating: |  Discuss |   Briefcase | 10,674 reads

Stairway to U-SQL Level 1: Introduction to U-SQL and Azure Data Lakes

An introductory guide to querying files in Azure Data Lakes using Microsoft's U-SQL language.  Read more...
By Mike McQuillan 2018/01/19 (first published: 2016/06/15) | Source: SQLServerCentral.com | Category: azure
Rating: |  Discuss |   Briefcase | 7,023 reads

Stairway to MDX - Level 5: Members, and an Introduction to the MDX Members Functions

Bill explains what is meant by a 'Member' and 'Member function' in MDX. A member is an item in a dimension that include the 'measures' which are the values of the attributes that belong to a dimension. 'Measures' are themselves members of a dimension called the “measures” dimension. MDX has a set of functions, known as member functions, each of which allow us to perform operations upon any member of a dimension   Read more...
By Bill Pearson 2018/01/17 (first published: 2011/09/02) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 8,075 reads

Stairway to SQL Server Agent - Level 4: Configuring Database Mail

Examines the database mail system configuration in depth. You will learn how to configure database mail to work with SMTP mail systems, and get some troubleshooting tips.  Read more...
By Richard Waymire 2018/01/10 (first published: 2011/07/28) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 5,624 reads

Stairway to MDX - Level 4: The Order() Function: Beyond Cube Hierarchies

Bill Pearson continues his examination of the versatile Order() function, focusing upon its use in providing dataset sorts that reach beyond dimensional hierarchies  Read more...
By Bill Pearson 2018/01/03 (first published: 2011/08/26) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 7,079 reads

Level 4 - Building the Hyper-V VM

In this level of the Stairway to Server Virtualization, learn how to build a Hyper-V virtual machine for SQL Server.  Read more...
By David Klee 2017/12/29 (first published: 2015/10/07) | Source: SQLServerCentral.com | Category: virtualization
Rating: |  Discuss |   Briefcase | 4,653 reads

An Introduction: Level 1 of the Stairway to Row-Level Security

Learn the basics of how Row-Level Security works in SQL Server.  Read more...
By Steve Jones 2017/12/28 | Source: SQLServerCentral.com | Category: row level security (rls)
Rating: |  Discuss |   Briefcase | 1,101 reads
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