Issue with SQL Server 2K5 SP3 CU5
In case you are considering to apply SQL Server SP3 CU5 (http://support.microsoft.com/kb/972511) to your system, I'd like to point out one issue / bug we found with CU5.
2009-09-15
3,000 reads
Jeffrey Yao
DBA Education
I always consider taking seminars and technical conferences as a key component in my DBA education framework
2009-02-03
1,484 reads
From DBA to DBAA
Most of us DBAs have worked on our career to get where we are. A DBA is usually a second or third step in IT and we we've looked to advance our understanding of technology. Jeffrey Yao now brings us a new level of database work to which we may aspire.
2008-05-09 (first published: 2007-07-12)
15,732 reads
Survive A SQL Server DBA Technical Interview
Another little bit of career advice, this time from longtime author Jeffrey Yao who gives you some pointeres on what you should know for your next job interview.
2007-10-12 (first published: 2006-07-10)
36,182 reads
How to be a Good DBA - Strategy and Tactics
New Author! And long time reader - Jeffrey was site member #712, almost 3 years and 130,000 members ago! This article describes the skills needed to progress from junior to intermediate to senior DBA.
2005-12-30 (first published: 2004-03-03)
39,092 reads
Migrating Database Objects
Not a fun task, although SQL Server 2000 makes the job easier than a few other platforms. Still it's work and it starts to encroach on Jeffrey Yao's two DBA laws having to do with fun at work. Read about his laws and see if you agree and follow along on a real world adventure in migrating hundreds of database objects to a new database.
2005-05-03
10,516 reads
Making good use of Sysforeignkeys table -- Part 2 Check Table Relation
Using sysforeignkeys to discover SQL Server circular relationships. Have you ever tried this? Most of us probably haven't, but Jeffrey Yao often needs to reverse engineer databases for his clients. Here's a followup to his first article where he presents another of his techniques for doing a little detective work in your databases.
2004-06-30
7,142 reads
Making Good Use of Sysforeignkeys Table - Part 1: Display table relati
Sysforeignkeys is a valuable SQL Server resource. How many times have you had to "pick up the pieces" from a database developed by someone else and dropped on your desk? Ever get a database diagram with that? A data dictionary? Probably not too often. Jeffrey Yao has developed a system of finding those parent-child relationships automatically and displaying them so he can get up to speed quickly on these inherited databases. Read on to find out more.
2004-06-01
11,711 reads
SQL Server Auditing and Notification
As Jeff says, "There are lots of articles about how to do auditing, but there are few discussions about how to use the auditing results in a real time environment". Well, now we have one that shows you how to do it!
2004-03-29
9,211 reads
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The Empty Aggregate
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Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers