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)
12,611 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)
11,412 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)
6,888 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)
24,759 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
4,729 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
3,292 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
1,766 reads
Segment Data into Deciles
This short article shows a simple example of how to segment data into deciles
2018-07-19
10,890 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
6,880 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
20,202 reads
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Restoring On Top II
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SQL Art 2: St Patrick’s Day in SSMS (Shamrock + Pint + Pixel Text)
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Breaking Down Your Work
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Question of the Day
Restoring On Top II
I have a database, DNRTest, that has a number of tables and other objects in it. The other day, I was trying to mock up a test and ran this code on the same server:
-- run yesterday CREATE DATABASE DNRTest2 GO USE DNRTest2 GO CREATE TABLE NewTable (id INT) GOToday, I realize that I need a copy of DNRTest for another mockup, and I run this:
-- run today USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO RESTORE DATABASE DNRTest2 FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens? See possible answers