Improving Performance for Some LIKE “%string%” Searches (SQL Spackle)
If you've ever wondered if you can do better than an INDEX SCAN when you do a LIKE "%string%" search, read on...
2024-11-29 (first published: 2014-04-07)
48,771 reads
Dwain Camps
The Right and Wrong of T-SQL DML TRIGGERs (SQL Spackle)
Triggers in T-SQL have many uses. There are right and wrong ways to write triggers. To learn the difference, read on...
2024-11-15 (first published: 2015-03-17)
8,664 reads
Calculating Elapsed Times (SQL Spackle)
Calculating elapsed time between time values can be an interesting problem that is easily solved even when data anomalies are present.
2024-09-20 (first published: 2013-09-26)
18,453 reads
An Alternative (Better?) Method to UNPIVOT (SQL Spackle)
Normalizing or UNPIVOTing data may be improved by using this lesser known approach in SQL Server 2008 or later.
2024-07-26 (first published: 2012-08-02)
43,600 reads
Performance of the SQL MERGE vs. INSERT/UPDATE
The SQL MERGE statement offers convenience, safety and elegance, but how does it perform compared to other methods?
2017-02-03 (first published: 2013-10-28)
157,432 reads
Logging and Error Handling for SQL Stored Procedures
Learn how to develop and test a template for logging and error handling in a multi-step SQL stored procedure
2015-09-18 (first published: 2014-01-20)
36,486 reads
The Fastest Way to Combine DATE and TIME Data Types to a DATETIME
Recently while working with a table where there were two columns, one a DATE datatype and a second TIME datatype,...
2015-09-08 (first published: 2015-08-28)
78,489 reads
High Performance T-SQL using Code Patterns
What exactly does this mean? We’ve heard of “code patterns” in other programming languages, but what does it mean to...
2015-06-04 (first published: 2015-05-27)
9,220 reads
The Best Tool for Comparing Whether Two T-SQL Queries Produce Identical Results
There is one software tool that should be in every software developer’s tool chest. That is knowledge of the platform...
2015-05-26 (first published: 2015-05-21)
7,598 reads
Excel in T-SQL Part 2 – The Normal Distribution (NORM.DIST) Density Functions
Today’s blog will be the second in a multi-part series on replicating Excel functions in T-SQL, continuing with Excel’s NORM.DIST...
2015-05-14
10,757 reads
Blogs
AI Step 1
By Vinay Thakur
As this is an Artificial Intelligence (AI) World, things are changing. We can see that...
Beginner’s Guide: Building a Dockerized Todo App with React, Chakra UI, and Rust for Backend
In a containerized app, React and Chakra UI provide a robust and accessible user...
A New Word: Nachlophobia
By Steve Jones
nachlophobia – n. the fear that your deepest connections with people are ultimately pretty...
Forums
identify consecutive records greater than 1
Hello I need help identifying all records that have consecutive hours (time in order)...
Call dynamic sql storedprocedure from SSIS execute sql task
hi, I have a table called Rules Create table Rules ( Id int ,...
Migrating database with many orphan users.
I am currently upgrading a very old database running SQL Server 2008 to SQL...
Question of the Day
The Funny SELECTs
What is returned from this query?
SELECT
( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2011' AND soh.OrderDate < '01/01/2012') AS OrdersIn2011
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2012' AND soh.OrderDate < '01/01/2013') AS OrdersIn2012
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate >= '01/01/2013' AND soh.OrderDate < '01/01/2014') AS OrdersIn2013; See possible answers