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Content with tag T-SQL Rss

<< Newer    Items 21 to 40 of 3151    Older >>
 

Cursor-Killing: Accessing Data in the Next Row

Cursors are considered by many to be the bane of good T-SQL. What are the best ways to avoid iterative T-SQL and to write queries that look and perform beautifully? This first part in an ongoing series of cursor-killing handles inter-row analysis.  Read more...
By Edward Pollack 2014/05/27 | Source: SQLServerCentral.com | Category: cte
Rating: |  Discuss |   Briefcase | 11,419 reads

Temp table limitations

By Steve Jones 2014/05/23 | Category: t-sql
Rating: (not yet rated) |  Discuss |   Briefcase | 1,999 reads

Comparing Different Data Types

Comparing columns of different data types can be a drain on resources, as well as our sanity. This is a look into a few strategies for dealing with implicit conversions.  Read more...
By Edward Pollack 2014/05/19 | Source: SQLServerCentral.com | Category: data types
Rating: |  Discuss |   Briefcase | 6,040 reads

Drop Me? No, I Don't Think So

By Andy Warren 2014/05/14 | Category: login
Rating: (not yet rated) |  Discuss |   Briefcase | 1,889 reads

Bean Counting

By PhyData DBA 2014/05/12 | Category: t-sql
Rating: (not yet rated) |  Discuss |   Briefcase | 1,822 reads

TOP Clause

By Nenad Zivkovic 2014/05/09 | Category: top
Rating: (not yet rated) |  Discuss |   Briefcase | 1,953 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 2014/05/08 | Source: SQLServerCentral.com | Category: cumulative
Rating: |  Discuss |   Briefcase | 10,683 reads

Datatypes In Your Mind

By Andy Warren 2014/05/06 | Category: data types
Rating: (not yet rated) |  Discuss |   Briefcase | 1,941 reads

Alter Column

By Shanjan Sapra 2014/04/30 | Category: computed columns
Rating: (not yet rated) |  Discuss |   Briefcase | 1,738 reads

Duplicate Detection and Management

Inevitably, every DBA is eventually asked to delete, merge, or otherwise report on duplicate data. There are many tools at our disposal to make this task both simple and efficient to complete. Read on for simple steps and examples to effectively deal with duplicate data.  Read more...
By Edward Pollack 2014/04/29 | Source: SQLServerCentral.com | Category: duplicate
Rating: |  Discuss |   Briefcase | 6,213 reads

Count all records the tables

Count all the records from the tables that exist in a database  Read more...
Rating: |  Discuss |   Briefcase | 1,582 reads

Double Keys

By Steve Jones 2014/04/22 | Category: encryption
Rating: (not yet rated) |  Discuss |   Briefcase | 1,685 reads

Unexpected View Performance

Views that use implicit conversion to return result sets may use a different query plan than the statement executed in query analyzer.  Read more...
By Thom Bolin 2014/04/18 (first published: 2011/01/11) | Source: SQLServerCentral.com | Category: views
Rating: |  Discuss |   Briefcase | 13,660 reads

Search objects in Database

Use this script to search objects in a Database. Also used to check a tables column types and details when no model is accessible. Replace <DATABASENAME> for database name.  Read more...
By bpimenta 2014/04/16 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 1,233 reads

Decryption Keys

By Steve Jones 2014/04/15 | Category: encryption
Rating: (not yet rated) |  Discuss |   Briefcase | 1,507 reads

Catch this!

By Auke Teeninga 2014/04/10 | Category: isnull
Rating: (not yet rated) |  Discuss |   Briefcase | 1,995 reads

GO-ING nowhere

By Joe Barth 2014/04/09 | Category: t-sql
Rating: (not yet rated) |  Discuss |   Briefcase | 2,026 reads

Stairway to T-SQL: Beyond The Basics Level 6: Using the CASE Expression and IIF Function

There are times where you need to write a single T-SQL statement that is able to return different T-SQL expressions based on the evaluation of another expression. When you need this kind of functionality you can use the CASE expression or IIF function to meet this requirement. In this Stairway level Gregory Larsen reviews the CASE and IIF syntax and showing you examples of how the CASE expression and IIF function.  Read more...
By Gregory Larsen 2014/04/09 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 9,696 reads

Symmetric Key Use

By Steve Jones 2014/04/08 | Category: encryption
Rating: (not yet rated) |  Discuss |   Briefcase | 1,322 reads

Divide and Conquer - Performance Tuning

Sometimes we need to break down a complex problem into a multiple stage solution to achieve optimal performance  Read more...
By Claire Mora 2014/04/08 | Source: SQLServerCentral.com | Category: t-sql
Rating: |  Discuss |   Briefcase | 7,501 reads
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