Integration Services can be used to load data from a number of source files stored in different folders. This next level in the Stairway Series for Integration Services shows exactly how you can use parameters, variables and the ForEach Loop Container to do this.
Views are a valuable tool for the SQL Server Developer, because they hide complexity and allow for a readable style of SQL expression. They aren't there for reasons of performance, and so indexed views are designed to remedy this shortcoming. They're great in certain circumstances but they represent a trade-off, and they come with considerable 'small print'. Jes Borland explains.
Steve Jones notes that a data breach resulted in a lawsuit. How long before that's a common practice, and should we be preparing as data professionals.
The day before SQL Saturday Silicon Valley, SQL Server MVP Steve Jones will be hosting a free seminar in San Jose on March 14 2014. Join fellow database professionals to learn best practices and practical tips for SQL Server version control, continuous integration and deployment.
A common method to detect if a row has changed is to compare hashes. Integration Services itself doesn’t have a hash implementation, so in this tip I’ll show how you can implement a hash detection mechanism using a script component, as an alternative to the pure T-SQL solution.
sp_ExecuteSQL can be used to dynamically execute T-SQL code. Learn how to use it and how to add parameters to control what code is executed.
We might not be able to stop hacks, attacks, or issues with our databases, but knowing that they've occurred is important. Steve Jones notes that we might need auditing more than security.
All DBAs need to engage in a little project management to help make sure everything runs smoothly. In this extract from the book Tribal SQL, David Tate explains his system for managing workload, colleagues, and projects, and how not to be just "the guy who says no".
March 15, SQLServerCentral's Steve Jones and many others (including Kalen Delaney, Kevin Boles, and Karen Lopez) will be presenting at SQL Saturday Silicon Valley. This is a free, one-day learning event about SQL Server, Microsoft Business Intelligence, and Big Data. Register soon while spots are available.
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
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...
Comments posted to this topic are about the item Server-Level Table sizes
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
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