Hierarchical Data Structure Virtualization in SQL

Data structure virtualization is the constructing of a data structure utilizing pieces or fragments from other data structures. This article demonstrates how Data structure virtualization can be performed in ANSI SQL utilizing hierarchical processing techniques to produce hierarchically structured virtualized output.

Showplan Operator of the Week – SORT

Fabiano introduces another ShowPlan operator that is used to build a query plan, or perform an operation specified in the DML. Once again, Fabiano demonstrates why it is important to be aware of these operators when getting queries to perform well.

Intelligent Conditional Split in an SSIS Package

Conditional Split is one of the most commonly used transforms in any SSIS Package development routine. The limitation with conditional split is that any record that satisfies the first condition from the conditions list is routed to its corresponding path exclusively. In a logical sense, a record might satisfy more than one condition and one might want the record to be routed to all paths for processing, but with the Conditional Split transform this is not possible. We need a more intelligent conditional split where we can selectively route the records to more than one output path. In this tip we will look at how to facilitate this intelligent conditional split.

Using SSIS Logging to Resolve Runtime Errors and Performance Issues

Runtime errors and performance issues can be difficult to identify and resolve. One of the primary methods that assist with their resolution involves generating logs, which contain records of events taking place during code execution. This article provides a comprehensive overview of logging options available in SQL Server 2008 R2 Integration Services.

What’s in Your Future?

How to Import, Browse And Export Master Data Services' Data

Learn how to import data to Master Data Services (MDS) using Master Data Manager Portal UI to enter data manually or how to automate the import process by staging data into three different MDS staging tables.

Survey: what is the highest wait on your system?

SQL Server guru Paul Randal is conducting a short survey on wait states. Add your vote to the tally.

SQL Server Email Alerts Notifications

This article details a creating a more flexible and user friendly email alerts system.

Replication Schema Option Across Different Versions of SQL Server

My company uses replication quite extensively across SQL 2000, SQL 2005 and SQL 2008 servers. The problem with using different versions of SQL Server is that the replication options do not always behave the same way. Because of these differences we have stopped using SQL Server Management Studio and Enterprise Manager to setup replication. Also we have taken the time to look at the schema options for replication to make sure the end result is the same for all versions of SQL Server.

State Transition Constraints

Data Validation in a database is a lot more complex than seeing if a string parameter really is an integer. A commercial world is full of complex rules for sequences of procedures, of fixed or variable lifespans, Warranties, commercial offers and bids. All this requires considerable subtlety to prevent bad data getting in, and if it does, locating and fixing the problem. Joe Celko shows how useful a State transition graph can be, and how essential it can become with the time aspect added.