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Articles with tag T-SQL Rss

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Performing a Right and Comprehensive Age Calculation

Age calculation based on the right method used in real life.   Read more...
By Sergiy Floka 2017/03/28 | Source: SQLServerCentral.com | Category: datetime conversions
Rating: |  Discuss |   Briefcase | 1,733 reads

Adding Years, Months and Days

Adding Years, Months and Days to Years, Months and Days, with Bonus UK Public Holiday calculation.  Read more...
By Pete Revell 2017/03/14 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 2,180 reads

Detective Stories - Tracking Down the Database's Dependents Part 2

No worries about dropping databases. Now we can search for its dependencies before the database dies. Part 2 of a 2-part article.  Read more...
By Brandie Tarvin 2017/03/07 | Source: SQLServerCentral.com | Category: database dependencies
Rating: |  Discuss |   Briefcase | 951 reads

Detective Stories - Tracking Down the Database's Dependents Part I

No worries about dropping databases. Now we can search for its dependencies before the database dies. Part 1 of a 2-part article.  Read more...
By Brandie Tarvin 2017/03/06 | Source: SQLServerCentral.com | Category: database dependencies
Rating: |  Discuss |   Briefcase | 1,237 reads

Using EXCEPT to Determine Row Differences

How to use the EXCEPT statement to perform row differences.  Read more...
By M. Douglas Bowan II 2017/02/17 (first published: 2014/03/25) | Source: SQLServerCentral.com | Category: except
Rating: |  Discuss |   Briefcase | 33,812 reads

Lists With, or Without, Ranges in both T-SQL and PowerShell

Whether you are working in a procedural language like PowerShell or in T-SQL, there is something slightly bothersome about having to deal with parameters that are lists, or worse with ranges amongst the values. In fact, once you have a way of dealing with them, they can be convenient, especially when bridging the gulf between application and the database. Phil Factor shows how to deal with them.  Read more...
By Additional Articles 2017/02/16 | Source: SimpleTalk | Category: powershell
Rating:  Rate this |   Briefcase | 4,330 reads

Wildcard Searches

Using wildcard to find patterns in strings going from the basics to some more complicated conditions.  Read more...
By Luis Cazares 2017/02/10 (first published: 2015/09/29) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 13,067 reads

Query Performance Tuning – A Methodical Approach

Learn how to approach performance tuning in this piece from SQL Server MCM and MVP, Gail Shaw.  Read more...
By Gail Shaw 2017/02/10 (first published: 2015/06/08) | Source: SQLServerCentral.com | Category: performance and tuning
Rating: |  Discuss |   Briefcase | 15,791 reads

Performance of the SQL MERGE vs. INSERT/UPDATE

The SQL MERGE statement offers convenience, safety and elegance, but how does it perform compared to other methods?  Read more...
By Dwain Camps 2017/02/03 (first published: 2013/10/28) | Source: SQLServerCentral.com | Category: merge
Rating: |  Discuss |   Briefcase | 36,989 reads

The Elusive Conditional WHERE Clause

What's this, a conditional WHERE clause that doesn't use dynamic SQL?  Read more...
By John Hick 2017/01/27 (first published: 2013/04/18) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 37,405 reads

Simpson's Paradox

This article is a case study and an attempt to explain an interesting phenomenon with data anomalies that is commonly called Simpson's Paradox.   Read more...
By Mala Mahadevan 2017/01/10 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 3,299 reads

Using Mod to Generate Work Shifts

A short story on using the mod function to a shifting query.  Read more...
By Joe McGovern 2016/12/22 | Source: SQLServerCentral.com | Category: mod
Rating: |  Discuss |   Briefcase | 1,376 reads

How to Capture Deleted Records

This article shows a few techniques that help in capturing deleted records.  Read more...
By Darko Martinovic 2016/12/19 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 2,355 reads

Finally, Create or Alter

Today Steve Jones looks at the CREATE OR ALTER syntax, added in SQL Server 2016 SP1.  Read more...
By Steve Jones 2016/11/29 | Source: SQLServerCentral.com | Category: editorial
Rating: (not yet rated) |  Discuss |   Briefcase | 111 reads

Online T-SQL Scripts and Copyright

The issue of copyright for online scripts is a grey area. If a script is published without any form of copyright notice, most people assume that it is freely available for reuse. It's not necessarily the case.  Read more...
By Brad McGehee 2016/11/25 | Source: SQLServerCentral.com | Category: editorial
Rating: |  Discuss |   Briefcase | 516 reads

Wildcard Searches

Using wildcard to find patterns in strings going from the basics to some more complicated conditions.  Read more...
By Luis Cazares 2017/02/10 (first published: 2015/09/29) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 13,067 reads

Getting more done with OUTPUT

Use OUTPUT to perform an INSERT and a DELETE at the same time.  Read more...
By Kenneth Fisher 2016/11/17 | Source: SQLServerCentral.com | Category: output
Rating: |  Discuss |   Briefcase | 2,758 reads

Bones of SQL - Practical Calendar Queries

After the first article created a Calendar table, learn how to use this in a practical sense with some common queries.  Read more...
By Bob Hovious 2016/10/13 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 2,082 reads

Solving FIFO Queues Using Windowed Functions

One common request often seen in T-SQL is working with queues of information. In this piece, J. Drew Allen will show to use windowing functions and the OVER clause to process a FIFO queue.  Read more...
By J. Drew Allen 2016/10/06 | Source: SQLServerCentral.com | Category: fifo queues
Rating: |  Discuss |   Briefcase | 2,697 reads

Constant Data Types

Data types are an important part of how tables and variables work. Did you know that constants have databases too?  Read more...
By Kenneth Fisher 2016/10/03 | Source: SQLServerCentral.com | Category: data types
Rating: |  Discuss |   Briefcase | 1,617 reads
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