T-SQL Tuesday #152–It Depends
A great invitation this month from Deborah Melkin. I thought this was very apt, as I use this phrase often. Many of us do. This was a tougher post...
2022-07-12
37 reads
Daily Coping 12 Jul 2022
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2022-07-12
21 reads
You’re doing your POC wrong! : T-SQL Tuesday #152
It’s T-SQL Tuesday again! Deborah Melkin (blog|twitter) is our host this month and she’d like to hear our opinion. A ... Continue reading
2022-07-27 (first published: 2022-07-12)
391 reads
What's in a name? (T-SQL Tuesday #152)
Foreword
This month’s invitation is from Deborah Melkin (b|t), about venting anything you want. So let’s start this rant.
There are only two hard things in Computer Science: cache invalidation and...
2022-07-29 (first published: 2022-07-12)
293 reads
Extended Events for Anything But Query Tuning: xml_deadlock_report_filtered
One of my favorite little bits of information about Extended Events is the fact that everyone running a full instance of SQL Server has deadlock information available to them,...
2022-07-11
39 reads
SQLServerCarpenter Tools
Over the past couple of years, I’ve developed several tools that I’ve been using during my Performance Tuning and other related assignments. I thought to share it with the...
2022-07-22 (first published: 2022-07-11)
1,292 reads
Daily Coping 11 Jul 2022
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2022-07-11
20 reads
usp_SQLServerCarpenter_Tools_GenerateTSQLCode_For_Get_Put_APIs
This procedure will generate SQL Code for Get and Put API's. This may be useful if you are developing your own data replication strategy to replicate data across multiple...
2022-07-11
65 reads
usp_SQLServerCarpenter_Tools_Estimate_Ineffective_Indexes
This procedure will list down all the indexes (Clustered as well Nonclustered Indexes) whose first key column having poor cardinality.
2022-07-11
43 reads
usp_SQLServerCarpenter_Tools_Estimate_Cardinality
This procedure will estimate the cardinality of all the columns of the supplied table list. If the table list is not supplied (or supplied with NULL, the default value)...
2022-07-11
45 reads
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Question of the Day
ORDER BY alias
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