Articles

External Article

SQL Server Integration Services (SSIS) - Design Best Practices

In the previous tips (SQL Server Integration Services (SSIS) - Best Practices - Part 1, Part 2 and Part 3) of this series I briefly talked about SSIS and few of the best practices to consider while designing SSIS packages. Continuing on this path I am going to discuss some more best practices of SSIS package design, how you can use lookup transformations and what considerations you need to take, the impact of implicit type cast in SSIS, changes in SSIS 2008 internal system tables and stored procedures and finally some general guidelines.

2009-12-14

5,747 reads

Technical Article

TSQL Challenge 19 - Working with consolidated calculations on hierarchical structures

This challenge involves generating an organizational hierarchy and calculating the total orders created by each employee and his/her subordinates. It involves a number of challenges such as generating a resultset in the correct hierarchical form, calculating the orders created by each employee and his/her subordinates and finally calculating the total orders created by self and all the subordinates.

You rated this post out of 5. Change rating

2009-12-14

2,432 reads

Technical Article

Comparing cursor vs. WHILE loop performance in SQL Server 2008

There are situations in which you need to individually handle each row in a result set. SQL Server 2008 provides a minimal set of tools — cursors and WHILE loops — to accomplish this task. I'll take a closer look at each option and explain why it's difficult to pinpoint which is better in terms of performance.

You rated this post out of 5. Change rating

2009-12-11

4,754 reads

Blogs

Methodology for dealing with bad data in production

By

Pinal Dave wrote up his methodology for what to do when you discover bad...

How to Provision an Azure SQL Database

By

Aside from spinning up a SQL Server instance container, the free Azure SQL Database...

Claude finds two cryptographic weaknesses (but the sky isn’t falling)

By

If you haven't seen the announcement, Anthropic was able to utilize Claude (Mythos Preview)...

Read the latest Blogs

Forums

Why SQL Server Database Attach fails and how to repair it

By Nisarg Upadhyay

Comments posted to this topic are about the item Why SQL Server Database Attach...

Fixing P1 Queries

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Fixing P1 Queries

BIT_COUNT() IV

By Steve Jones - SSC Editor

Comments posted to this topic are about the item BIT_COUNT() IV

Visit the forum

Question of the Day

BIT_COUNT() IV

In SQL Server 2025, I run this code:

select bit_count('A')
What is returned?

See possible answers