Count the Number of Weekend Days between Two Dates
Handling weekends can be tricky in SQL. This article shows you how to Count the Number of Weekend Days between Two Dates
2020-10-16 (first published: 2018-08-23)
12,314 reads
Adam Aspin
Creating Subtotals and Totals in Aggregated Queries
Grouping Sets are an effective way to add subtotals to aggregated queries. T His article explains how.
2020-09-25 (first published: 2018-09-06)
11,267 reads
Aggregate Data for the Last Day of the Month
On some occasions you will need to aggregate Data for the Last Day of the Month. This article explains how.
2020-04-03 (first published: 2018-08-16)
6,806 reads
Displaying Hierarchical Data
Producing hierarchies from SQL tables can necessitate joining a table to itself. This article will explain how you can do this.
2020-03-06 (first published: 2018-08-30)
24,631 reads
Using a CTE as a Tally Table
Sometimes you need to output blank lines
- in effect displaying Records for Missing Data. This article explains how to use a CTE to do this
2018-08-09
4,640 reads
Using a Derived Table to Compare Data with Values from a Previous Year
Comparing year on year sales is a fundamental requirement in much commercial analysis - here you learn how to do this in SQL
2018-08-02
3,256 reads
Display Median Values
DO you know how to display median values from a Dataset? In this short article you will use windowing functions to do this
2018-07-26
1,727 reads
Segment Data into Deciles
This short article shows a simple example of how to segment data into deciles
2018-07-19
10,608 reads
Generating Completely Random Sample Output from a Dataset
This short article shows a simple example of how to generate completely random sample output from a Dataset
2018-07-12
6,831 reads
Creating Compound Interest Calculations in SQL
This is the first article in a short series of SQL Server query challenges to test and expand your SQL Server querying skills
2018-07-05
19,738 reads
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Forums
Union where it matches against only one shared column
Hi folks I have two tables, both with a NAME, START and END fields...
How to update using data from three tables?
I am in the process of migrating from MySQL to SQL Server. I have...
Select Returning Blank Rows
I have the following select statement --#1 Select supplier, s.refnum, desc from supplier as...
Question of the Day
Replacing a NULL II
What is returned from this code in SQL Server 2022?
DECLARE @value INT = NULL , @value2 VARCHAR(20) = NULL; SELECT COALESCE (@value, @value2, 100.5) AS Result; GOSee possible answers