When information is exchanged in XML format, there needs to be an agreement between the sender and receiver about the structure and content of the XML document. An XSD (XML Schema Definition Language) Schema can be used to enforce this contract and validate the XML data being exchanged. Jacob Sebastian's book explains all.
Getting 'up to speed' with StreamInsight is easier if you take the time to run it and test it out. Roger Jennings expains how to be up and running in nine simple steps, once you've sorted out the prerequisites
Learn how to search for a value throughout all database tables.
If you are the type of person that doesn't run DBCC checks, Steve Jones thinks you're a gambler. And you might think about attending SQL Intersection next month in Vegas.
Often, an existing database application must evolve rapidly by incremental steps. Alex describes a tried and tested system to provide an automated approach to deploying both new and existing database systems, whilst dealing with common security and configuration issues.
When a query suddenly starts taking much longer, what do you do? This story from Jerry
Steve Jones asks the question why so much data in SQL Server is cleared when we restart an instance.
Extended Events provide a way of unintrusively monitoring what's going on in a SQL Server instance. Unlike SQL Server Profiler and SQL Trace, it has little performance impact. Now, in SQL Server 2012 SSMS, it is relatively easy to use, as Robert Sheldon shows.
How changes are applied to databases differs from person to person and from organization to organization. Here at Red Gate we’re writing the next chapter for SQL Compare and we need your feedback to validate some of our ideas. To help us in this endeavour, and to enter a prize draw for one of five $50 Amazon vouchers, please complete the following survey.
This is the part 3 of the Data Mining Series from Daniel Calbimonte. This article examines the cluster algorithm.
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
I’m excited to announce the release of a new open-source project that fully automates...
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
Comments posted to this topic are about the item AI Experience Gap that we...
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers