Click here to monitor SSC
SQLServerCentral is supported by Red Gate Software Ltd.
 
Log in  ::  Register  ::  Not logged in
 
 
 

Articles with tag T-SQL Rss

Search for any content tagged t-sql

   Items 1 to 20 of 1175    Older >>
 

The Elusive Conditional WHERE Clause

What's this, a conditional WHERE clause that doesn't use dynamic SQL?  Read more...
By John Hick 2015/04/17 (first published: 2013/04/18) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 33,325 reads

Using LAST_VALUE

When I began using LAST_VALUE, the results were not what I expected at all. Read on to learn the secret!  Read more...
By Kathi Kellenberger 2015/04/14 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 14,195 reads

A Hazard of Using the SQL Update Statement

If you've never encountered this quirk of the SQL UPDATE statement, you should take a look and find a simple way around it.  Read more...
By Dwain Camps 2015/04/06 (first published: 2013/09/09) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 25,949 reads

Calculating Duration Using DATETIME Start and End Dates (SQL Spackle)

It's an old problem with a solution that's nearly as old. SQL Server MVP Jeff Moden shows us the old trick mixed with a slick trick to format the duration as extended hours, minutes, seconds, and milliseconds.   Read more...
By Jeff Moden 2015/04/03 (first published: 2014/01/16) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 19,273 reads

Using APPLY to make your queries DRYer

Using the APPLY operator to reduce repetition and make queries DRYer.  Read more...
By Gerald Britton 2015/04/02 | Source: SQLServerCentral.com | Category: queries
Rating: |  Discuss |   Briefcase | 13,237 reads

Cumulative sum of previous rows

I had an update statement that took 3 minutes to run after this code change it took 6 seconds.  Read more...
By Ben Kubicek 2015/03/27 (first published: 2014/05/08) | Source: SQLServerCentral.com | Category: cumulative
Rating: |  Discuss |   Briefcase | 14,413 reads

Unit Testing with SQL Server

Learn how to begin unit testing with tSQLt and SQL Server.   Read more...
By Alessandro Alpi 2015/03/26 | Source: SQLServerCentral.com | Category: unit testing
Rating: |  Discuss |   Briefcase | 5,358 reads

Identifying Start Dates not Aligned with End Dates on a Prior Row

When effective end dates don't align properly with effective start dates for subsequent rows, what are you to do?  Read more...
By Dwain Camps 2015/03/24 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 5,283 reads

Common Mistakes

This week Steve Jones is wondering what the common mistakes that T-SQL developers make are.  Read more...
By Steve Jones 2015/03/20 | Source: SQLServerCentral.com | Category: editorial
Rating: (not yet rated) |  Discuss |   Briefcase | 333 reads

The Right and Wrong of T-SQL DML TRIGGERs (SQL Spackle)

Triggers in T-SQL have many uses. There are right and wrong ways to write triggers. To learn the difference, read on...  Read more...
By Dwain Camps 2015/03/17 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 6,096 reads

How to Design, Build and Test a Dynamic Search Stored Procedure

Learn how to design, build and test a dynamic search SP in just a few simple but methodical steps.  Read more...
By Dwain Camps 2015/03/06 (first published: 2013/11/05) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 18,994 reads

Outer Join – What am I missing (SQL Spackle)

This article shows how to find missing rows in a table using a outer join.   Read more...
By Patrick Cahill 2015/02/27 (first published: 2013/11/12) | Source: SQLServerCentral.com | Category: outer joins
Rating: |  Discuss |   Briefcase | 20,686 reads

The Potential of Joins

An article about how we underestimate the power of joins and degrade our query performance by not using proper joins  Read more...
By Ashutosh Pandey 2015/02/26 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 9,505 reads

Dynamically Query a 100 Million Row Table-Efficiently

This article describes methods of creating dynamic queries without the use of dynamic SQL to efficiently access large tables.  Read more...
By Gary Strange 2015/02/24 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 17,558 reads

Questions About T-SQL Control-of-Flow Language You Were Too Shy to Ask

Surely, we all know how T-SQL Control-of-flow language works? In fact it is surprisingly easy to get caught out. What, for example, do the BREAK, RETURN and CONTINUE keywords do in their various contexts? Robert Sheldon has the answers to this and other questions.  Read more...
By Additional Articles 2015/02/10 | Source: SimpleTalk | Category: t-sql
Rating:  Rate this |   Briefcase | 10,372 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 2015/02/06 (first published: 2013/10/28) | Source: SQLServerCentral.com | Category: merge
Rating: |  Discuss |   Briefcase | 30,582 reads

Using a column name in a COUNT function

Putting a column name in a COUNT() function may not always give you what you are looking for.  Read more...
By Charles Kincaid 2015/01/30 (first published: 2013/10/15) | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 26,753 reads

Removing Duplicates

How to remove identify and remove duplicate data from your tables  Read more...
By Sioban Krzywicki 2015/01/23 (first published: 2013/10/08) | Source: SQLServerCentral.com | Category: duplicate data
Rating: |  Discuss |   Briefcase | 28,685 reads

Using EXCEPT to Determine Row Differences

How to use the EXCEPT statement to perform row differences.  Read more...
By M. Douglas Bowan II 2015/01/09 (first published: 2014/03/25) | Source: SQLServerCentral.com | Category: except
Rating: |  Discuss |   Briefcase | 30,212 reads

Parsing HTML to SQL using SQLDOM

It is simple to parse HTML directly to SQL, manipulate, and render back to HTML using SQLDOM  Read more...
By David Rueter 2014/12/26 (first published: 2012/04/16) | Source: SQLServerCentral.com | Category: html
Rating: |  Discuss |   Briefcase | 14,534 reads
   Items 1 to 20 of 1175    Older >>