What better way to learn how to construct complex CHECK CONSTRAINTs, use the SQL 2012 window frame capability of the OVER clause and LEAD analytic function, as well as how to pivot rows into columns using a crosstab query? Create the SQL code to score Ten-pin Bowling, of course. Dwain Camps explains the how, what and why.
How can we ship safe, and ship often? Steve Jones has a few comments on the need for better engineering.
SQL Server’s GROUP BY clause provides you a way to aggregate your SQL Server data and to group data on a single column, multiple columns, or even expressions. Greg Larsen discusses how to use the GROUP by clause to summarize your data.
Chris Testa-O'Neil on the origins of SQL Bits and the joys of community events.
If you are still on the edge about PowerPivot and have not given it a shot, this article will get you started with ample of screen shots and a step-by-step guide.
Surely, we all know how T-SQL Control-of-flow language works? In fact it is surprisingly easy to get caught out. What, for example, do the BREAK, RETURN and CONTINUE keywords do in their various contexts? Robert Sheldon has the answers to this and other questions.
In this chapter we will detect the Data Mining activity using SQL Server Profiler.
In this chapter we will detect the Data Mining activity using SQL Server Profiler.
In which Phil Factor casts doubts on 'programming policies'. For certain, any IT team development requires plenty of methods of working that maximise productivity, but coding standards and ‘best practices’ have to be treated with caution. Programming rules can’t replace professional judgement
In this tip, Dallas Snider shares his experience with how someone can start learning T-SQL from the beginning with no prior knowledge.
I’m excited to announce the release of a new open-source project that fully automates...
One of my favourite features of SQL Server 2022 was the T-SQL Snapshot Backups....
By Steve Jones
I have said and written this many times: Redgate Software is the type of...
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